AMV8/ADV8
TWO-STAGE
GAS-FIRED WARM AIR FURNACE
INSTALLATION INSTRUCTIONS
(CATEGORY1)
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements
embodied in the American National
Standard / National Standard of Canada
ANSI Z21.47·CSA-2.3 Gas Fired Central
Furnaces.
®
C
US
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all
safety precautions and related items.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special attention to all
safety warnings. Often during installation or repair it is possible to place yourself in a position which is more
hazardous than when the unit is in operation.
Remember, it is your responsibility to install the product safely and to know it well enough to be able to instruct a
customer in its safe use.
Safety is a matter of common sense...a matter of thinking before acting. Most dealers have a list of specific good
safety practices...follow them.
The precautions listed in this Installation Manual are intended as supplemental to existing practices. However, if
there is a direct conflict between existing practices and the content of this manual, the precautions listed here take
precedence.
*NOTE: Please contact your distributor or our
website for the applicable product data book
referred to in this manual.
®
is a trademark of Maytag Corporation and is used under
license to Goodman Company, L.P. All rights reserved.
6/06
IO-316
© 2004-2006 Goodman Company, L.P.
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Table of Contents
XI. SEQUENCE OF OPERATION ........................................................................................................................................ 23
(INTEGRATED IGNITION CONTROL) ................................................................................................................................. 23
NORMAL HEATING SEQUENCE ........................................................................................................................................... 23
NORMAL COOLING SEQUENCE - INTEGRATED IGNITION CONTROL ............................................................................................ 23
CONSTANT FAN .............................................................................................................................................................. 23
XII. START-UP PROCEDUREAND ADJUSTMENT ............................................................................................................ 24
FURNACE OPERATION ...................................................................................................................................................... 24
FURNACE START-UP ....................................................................................................................................................... 24
FURNACE SHUTDOWN .................................................................................................................................................... 24
GAS SUPPLY PRESSURE MEASUREMENT ............................................................................................................................ 24
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT ................................................................................................ 25
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) ......................................................................................................... 25
TEMPERATURE RISE ........................................................................................................................................................ 26
CIRCULATOR BLOWER SPEED ADJUSTMENT ........................................................................................................................ 26
ADJUST BLOWER HEAT OFF DELAY ................................................................................................................................... 27
CIRCULATOR BLOWER FAN TIMING ADJUSTMENT ................................................................................................................. 28
XIII. OPERATIONAL CHECKS ........................................................................................................................................... 28
BURNER FLAME ............................................................................................................................................................ 28
AUXILIARY LIMIT CONTROL .............................................................................................................................................. 28
PRIMARY LIMIT .............................................................................................................................................................. 28
XIII. SAFETY CIRCUIT DESCRIPTION ................................................................................................................................... 28
GENERAL ..................................................................................................................................................................... 29
INTEGRATED CONTROL MODULE ....................................................................................................................................... 29
PRIMARY LIMIT .............................................................................................................................................................. 29
AUXILIARY LIMIT ............................................................................................................................................................ 29
ROLLOUT LIMITS ........................................................................................................................................................... 29
PRESSURE SWITCHES .................................................................................................................................................... 29
FLAME SENSOR ............................................................................................................................................................. 29
XV. TROUBLESHOOTING.................................................................................................................................................. 29
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ............................................................................................................... 29
DIAGNOSTIC CHART ........................................................................................................................................................ 29
RESETTING FROM LOCKOUT ............................................................................................................................................ 29
XVI. MAINTENANCE .......................................................................................................................................................... 29
ANNUAL INSPECTION ...................................................................................................................................................... 30
FILTERS ....................................................................................................................................................................... 30
FILTER MAINTENANCE ..................................................................................................................................................... 30
FILTER REMOVAL ........................................................................................................................................................... 30
UPRIGHT FILTER REMOVAL .............................................................................................................................................. 30
INDUCED DRAFT AND CIRCULATOR BLOWER MOTORS........................................................................................................... 30
FLAME SENSOR (QUALIFIED SERVICER ONLY) .................................................................................................................... 30
IGNITER (QUALIFIED SERVICER ONLY)............................................................................................................................... 30
BURNERS .................................................................................................................................................................... 30
XVII. BEFORE LEAVING AN INSTALLATION .................................................................................................................... 31
XVIII. REPAIR AND REPLACEMENT PARTS .................................................................................................................... 31
WARNING
IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A
FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
–
O NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND
D
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
–
:
WHAT TO DO IF YOU SMELL GAS
• DO NOT TRY TO LIGHT ANY APPLIANCE.
WARNING
• DO NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY
PHONE IN YOUR BUILDING.
GOODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY
DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES.
IF YOU INSTALL OR PERFORM SERVICE ON THIS UNIT, YOU ASSUME
RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERY DAMAGE WHICH
MAY RESULT. MANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR
SERVICE HEATING AND AIR CONDITIONING EQUIPMENT.
• IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S
PHONE. OLLOW THE GAS SUPPLIER’S INSTRUCTIONS.
F
• IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE
DEPARTMENT.
–
NSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER,
I
SERVICE AGENCY OR THE GAS SUPPLIER.
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I. WARNINGS
WARNING
TO THE INSTALLER
Before installing this unit, please read this manual thoroughly to
familiarize yourself with specific items which must be adhered to,
including but not limited to: unit maximum external static pressure,
gas pressures, BTU input rating, proper electrical connections,
circulating air temperature rise, minimum or maximum CFM, and
motor speed connections, and venting. These furnaces are
designed for Category I venting only.
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN
OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE
TURNING OFF THE ELECTRICAL SUPPLY.
WARNING
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
T
THIS FURNACE MUST BE ATEGORY VENTED.
O NOT VENT USING
C
I
D
CATEGORY III VENTING.
ROVISIONS MUST BE MADE FOR VENTING COMBUSTION PRODUCTS
P
OUTDOORS THROUGH A PROPER VENTING SYSTEM. HE LENGTH OF FLUE PIPE
T
COULD BE A LIMITING FCTOR IN LOCATING THE FURNACE.
TRANSPORTATION DAMAGE
CARBON MONOXIDE POISONING HAZARD
All units are securely packed in shipping containers tested
according to International Safe Transit Association specifications.
The carton must be checked upon arrival for external damage. If
damage is found, a request for inspection by carrier’s agent must
be made in writing immediately.
Special Warning for Installation of Furnace or Air Handling Units in
Enclosed Areas such as Garages, Utility Rooms or Parking Areas
Carbon monoxide producing devices (such as an automobile, space
heater, gas water heater, etc.) should not be operated in enclosed areas
such as unventilated garages, utility rooms or parking areas because of
the danger of carbon monoxide (CO) poisoning resulting from the exhaust
emissions. If a furnace or air handler is installed in an enclosed area such
as a garage, utility room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
ventilation.
The furnace must be carefully inspected on arrival for damage
and bolts or screws which may have come loose in transit. In the
event of damage the consignee should:
1. Make a notation on delivery receipt of any visible damage
to shipment or container.
This ventilation is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device continues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circulated
throughout the structure if the furnace or air handler is operating in any
mode.
2. Notify carrier promptly and request an inspection.
3. With concealed damage, carrier must be notified as soon
as possible - preferably within five days.
CO can cause serious illness including permanent brain damage or death.
4. File the claim with the following support documents within
a nine month statute of limitations.
-
B10259-216
• Original or certified copy of the Bill of Lading, or indemnity
bond.
• Original paid freight bill or indemnity in lieu thereof.
WARNING
• Original or certified copy of the invoice, showing trade and
other discounts or reductions.
• Copy of the inspection report issued by carrier’s
representative at the time damage is reported to carrier.
TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION,
ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS
MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.
The carrier is responsible for making prompt inspection of damage
and for a thorough investigation of each claim. The distributor or
manufacturer will not accept claims from dealers for transportation
damage.
TO THE OWNER
It is important that you fill out the owner’s registration card and
mail it today. This will assist us in contacting you should any
service or warranty information change in the future. When filling
in the registration card, be sure to include the model,
manufacturing, and serial numbers, plus the installation date.
Keep this literature in a safe place for future reference.
II. SAFETY
Your warranty certificate is also supplied with the unit. Read the
warranty carefully and note what is covered. Keep the warranty
certificate in a safe location for future reference.
Adhere to the following warnings and cautions when installing,
adjusting, altering, servicing, or operating the furnace.
If additional information or operating instructions are required,
contact the dealer where the purchase was made.
WARNING
Homeowner Notice:
TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION,
ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS
MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.
If the residence is left unattended for an extended period of time
(i.e., 4 hours or greater), have your heating system periodically
checked to ensure proper operation. Potential circumstances
beyond our control such as power outages, gas service
interruptions, product installation, or component failures could
result in heating system operational problems.
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3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution
not to recharge your body with static electricity; (i.e., do not
move or shuffle your feet, do not touch ungrounded objects,
etc.). If you come in contact with an ungrounded object,
repeat step 2 before touching control or wires.
WARNING
THIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS WHICH
MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE KNOWN TO THE
STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM.
4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a furnace. Return any old or new
controls to their containers before touching any ungrounded
object.
WARNING
TO PREVENT POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH
DUE TO ELECTRICAL SHOCK, THE FURNACE MUST BE LOCATED TO PROTECT
THE ELECTRICAL COMPONENTS FROM WATER.
III. PRODUCT APPLICATION
This furnace is primarily designed for residential home-heating
applications. It is NOT designed or certified for use in mobile
homes, trailers or recreational vehicles. Neither is it designed or
certified for outdoor applications. The furnace must be installed
indoors (i.e., attic space, crawl space, or garage area provided
the garage area is enclosed with an operating door).
WARNING
THIS UNIT MUST NOT BE USED AS A "CONSTRUCTION HEATER" DURING THE
FINISHING PHASES OF CONSTRUCTION ON A NEW STRUCTURE. THIS TYPE OF
USE MAY RESULT IN PREMATURE FAILURE OF THE UNIT DUE TO EXTREMELY
LOW RETURN AIR TERMPERATURES AND EXPOSURE TO CORROSIVE OR VERY
DIRTY ATMOSPHERES.
This furnace can be used in the following non-industrial
commercial applications:
Schools, Office buildings, Churches, Retail stores,
Nursing homes, Hotels/motels, Common or office areas
In such applications, the furnace must be installed with the
following stipulations:
WARNING
HEATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE, ROUTINE,
INSPECTION, MAINTENANCE AND SUPERVISION. IF THE BUILIDNG IN WHICH ANY
SUCH DEVICE IS LOCATED WILL BE VACANT, CARE SHOULD BE TAKEN THAT
SUCH DEVICE IS ROUTINELY INSPECTED, MAINTAINED AND MONITORED. IN THE
EVENT THAT THE BUILDING MAYBE EXPOSED TO FREEZING TEMPERATURES
AND WILL BE VACANT, ALL WATER-BEARING PIPES SHOULD BE DRAINED, THE
BUILDING SHOULD BE PROPERLY WINTERIZED, AND THE WATER SOURCE
CLOSED. IN THE EVENT THAT THE BUILDING MAY BE EXPOSED TO FREEZING
TEMPERATURES AND WILL BE VACANT, ANY HYDRONIC COIL UNITS SHOULD
BE DRAINED AS WELL AND, IN SUCH CASE, ALTERNATIVE HEAT SOURCES
SHOULD BE UTILIZED.
• It must be installed per the installation instructions provided
and per local and national codes.
• It must be installed indoors in a building constructed on
site.
• It must be part of a ducted system and not used in a free air
delivery application.
• It must not be used as a “make-up” air unit.
• All other warranty exclusions and restrictions apply.
This furnace may be used as a construction site heater ONLY if
the following conditions are met:
• The vent system is permanently installed per these
installation instructions.
ADDITIONAL SAFETY CONSIDERATIONS
• This furnace is approved for Category I Venting only.
• A room thermostat is used to control the furnace. Fixed
jumpers that provide continuous heating CANNOT be used.
• Return air ducts are provided and sealed to the furnace.
• Provisions must be made for venting combustion products
outdoors through a proper venting system. The length of
flue pipe could be a limiting factor in locating the furnace.
• A return air temperature range between 60ºF (16ºC) and
80ºF (27ºC) is maintained.
ELECTROSTATIC DISCHARGE (ESD)PRECAUTIONS
NOTE: Discharge body’s static electricity before touching unit. An
electrostatic discharge can adversely affect electrical components.
• Air filters are installed in the system and maintained during
construction, replaced as appropriate during construction,
and upon completion of construction are replaced.
• The input rate and temperature rise are set per the furnace
rating plate.
• 100% outside air is provided for combustion air
requirements during construction. Temporary ducting can
be used.
NOTE: Do not connect the temporary duct directly to the
furnace. The duct must be sized according to the
instructions under Section V, Combustion and Ventilation
Air Requirements, Section 5.3.3.
• The furnace heat exchanger, components, duct system,
air filters and evaporator coils are thoroughly cleaned
following final construction clean up.
Use the following precautions during furnace installation and
servicing to protect the integrated control module from damage.
By putting the furnace, the control, and the person at the same
electrostatic potential, these steps will help avoid exposing the
integrated control module to electrostatic discharge. This
procedure is applicable to both installed and non-installed
(ungrounded) furnaces.
1. Disconnect all power to the furnace. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body’s electrostatic
charge to ground.
2. Firmly touch a clean, unpainted, metal surface of the
furnaces near the control. Any tools held in a person’s
hand during grounding will be discharged.
• All furnace operating conditions (including ignition, input
rate, temperature rise and veting) are verified according to
these installation instructions.
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Additional helpful publications available from the NFPA are, NFPA
90A - Installation of Air Conditioning and Ventilating System and
NFPA 90B - Warm Air Heating and Air Conditioning System.
NOTE: The Commonwealth of Massachusetts requires that the
following additional requirements must also be met:
• Gas furnaces must be installed by a licensed plumber or
gas fitter.
• A T-handle gas cock must be used.
• If the unit is to be installed in an attic, the passageway to
and the service area around the unit must have flooring.
All venting shall be in accordance with PART 7, Venting of
Equipment, of the National Fuel Gas Code, ANSI Z223.1, or
applicable local building and/or air conditioning codes. These
publications are available from:
National Fire Protection Association, Inc.
Batterymarch Park
To ensure proper installation and operation, thoroughly read this
manual for specifics pertaining to the installation and application
of this product.
Quincy, MA 02269
The AMV8 and ADV8 series of furnaces meet the California NOx
emission standards and California seasonal efficiency standards.
ANNUAL inspections of the furnace and its vent system is strongly
recommended.
WARNING
POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
EXPLOSION, SMOKE, SOOT, CONDENSTAION, ELECTRICAL SHOCK OR CARBON
MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION, REPAIR, OPERATION,
OR MAINTENANCE OF THIS PRODUCT.
IV. LOCATION REQUIREMENTSAND CONSIDERATIONS
GENERAL
WARNING
WARNING
POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
EXPLOSION, SMOKE, SOOT, CONDENSTAION, ELECTRICAL SHOCK OR CARBON
MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION, REPAIR, OPERATION,
OR MAINTENANCE OF THIS PRODUCT.
TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR RECREATIONAL
VEHICLE.
WARNING
To ensure proper furnace operation, install, operate and maintain
the furnace in accordance with these installation and operation
instructions, all local building codes and ordinances. In their
absence, follow the latest edition of the National Fuel Gas Code
(NFPA 54/ANSI Z223.1), and/or CAN/CSAB149 Installation Codes,
local plumbing or waste water codes, and other applicable codes.
TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED
WHEN INSTALLING THE UNIT.
Follow the instructions listed below when selecting a furnace
location. Refer also to the guidelines provided in Section V,
Combustion and Ventilation Air Requirements.
A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) can
be obtained from any of the following:
• Centrally locate the furnace with respect to the proposed
or existing air distribution system.
American National Standards Institute
1430 Broadway
New York, NY 10018
• Ensure the temperature of the return air entering the
furnace is between 55°F and 100°F when the furnace is
heating.
• Provisions must be made for venting combustion products
outdoors through a proper venting system. The length of
flue pipe could be a limiting factor in locating the furnace.
• Ensure adequate combustion air is available for the
furnace. Improper or insufficient combustion air can
expose building occupants to gas combustion products
that could include carbon monoxide. Refer to Section V,
Combustion and Ventilation Air Requirements.
• The furnace must be level. If the furnace is to be set on a
floor that may become wet or damp at times, the furnace
should be supported above the floor on a concrete base
sized approximately 1-1/2" larger than the base of the
furnace.
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02269
CSA International
8501 East Pleasant Valley
Cleveland, OH 44131
A copy of the CAN/CSA B149 Installation Codes can also be
obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W 1R3
The rated heating capacity of the furnace should be greater than
or equal to the total heat loss of the area to be heated. The total
heat loss should be calculated by an approved method or in
accordance with “ASHRAE Guide” or “Manual J-Load Calculations”
published by the Air Conditioning Contractors of America.
• Ensure upflow or horizontal furnaces are not installed
directly on carpeting, or any other combustible material.
The only combustible material allowed is wood.
• Exposure to contaminated combustion air will result in
safety and performance-related problems. Do not install
the furnace where the combustion air is exposed to the
following substances:
In the USA, this furnace MUST be installed in accordance with the
latest edition of the ANSI Z223.1 booklet entitled “National Fuel
Gas Code” (NFPA 54), and the requirements or codes of the local
utility or other authority having jurisdiction. In Canada, this furnace
must be installed in accordance with the current CAN/CGA-B149.1
& 2 Gas Installation Codes, local plumbing or waste water codes
and other applicable codes.
chlorinated waxes or cleaners
chlorine-based swimming pool chemicals
water softening chemicals
deicing salts or chemicals
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carbon tetrachloride
halogen type refrigerants
cleaning solutions (such as perchloroethylene)
printing inks
ACCESSIBILITY CLEARANCE, WHERE GREATER, SHOULD TAKE
PRECEDENCE OVER MINIMUM FIRE PROTECTION
CLEARANCE. A gas-fired furnace for installation in a residential
garage must be installed so that the ignition source and burners
are located not less than eighteen inches (18") above the floor
and is protected or located to prevent physical damage by vehicles.
A gas furnace must not be installed directly on carpeting, tile, or
other combustible materials other than wood flooring.
paint removers
varnishes
hydrochloric acid
cements and glues
Vent Pipe Clearance to Combustibles -
6" using Single Wall Connector or 1"
using B-1 vent.
antistatic fabric softeners for clothes dryers
and masonry acid washing materials
• If the furnace is used in connection with a cooling unit,
install the furnace upstream or in parallel with the cooling
unit coil. Premature heat exchanger failure will result if the
cooling unit coil is placed ahead of the furnace.
Top - 1"
Back - 0"
• If the furnace is installed in a residential garage, position
the furnace so that the burners and ignition source are
located not less than 18 inches (457 mm) above the floor.
Protect the furnace from physical damage by vehicles.
• If the furnace is installed horizontally, the furnace access
doors must be vertical so that the burners fire horizontally
into the heat exchanger. Do not install the unit with the
access doors on the “up/top” or “down/bottom” side of the
furnace.
Side
Clearance - 1"
Front Clearance - 3"
• Do not connect this furnace to a chimney flue that serves a
separate appliance designed to burn solid fuel.
• On Counterflow Installations, the air conditioning coil must
be downstream from the heat exchanger of the furnace.
• Counterflow Installation over a noncombustible floor.
Before setting the furnace over the plenum opening, ensure
the surface around the opening is smooth and level. A tight
seal should be made between the furnace base and floor
by using a silicone rubber caulking compound or cement
grout.
• Adequate combustion/ combustion air must be supplied
to the closet.
• Furnace must be completely sealed to floor or base.
Combustion/ ventilation air supply pipes must terminate
12" from top of closet and 12" from floor of closet. DO NOT
remove solid base plate for bottom return.
• Return air ducts must be completely sealed to the furnace
and terminate outside the enclosure. surfaces.
• Counterflow Installation over a combustible floor. If
installation over a combustible floor becomes necessary,
use an accessory subbase (see Product Data Book
applicable for your model* for details.) A special accessory
subbase must be used for upright counterflow unit
installations over any combustible material including wood.
Refer to subbase instructions for installation details.
Follow the instructions with the subbase for proper
installation. Do not install the furnace directly on carpeting,
tile, or other combustible material other than wood flooring.
(Note: The subbase will not be required if an air
conditioning coil is installed between the supply air opening
on the furnace and the floor.)
FURNACE SUSPENSION
If suspending the furnace from rafters or joist, use 3/8" threaded
rod and 2”x2”x3/8” angle iron as shown below. The length of rod
will depend on the application and the clearances necessary.
PROVIDE 8" MINMUM CLEARANCE BETWEEN
CENTER ROD AND FURNACE CABINET
TO ALLOW FOR CIRCULATOR BLOWER REMOVAL
3/8" DIAMETER
ASSURE FURNACE IS LEVEL FROM
THREADED ROD
END TO END AND HAS
A
SLIGHT
(6 PLACES)
FORWARD TILT WITH THE FRONT
OF THE FURNACE 0"-3/4"
BELOW THE BACK OF THE FURNACE
HOLD DOWN
NUTS
SUPPORT
NUTS
CLEARANCES AND ACCESSIBILITY
Unobstructed front clearance of 24" for servicing is
recommended.
2"x2"x3/8"
ANGLE IRON
(3 PLACES)
TILT OUTWARD TO ALLOW FOR
DOOR AND CIRCULATOR BLOWER
REMOVAL
V E NT
TO P
(P L EN U M)
POSITION AS CLOSE AS POSSIBLE
TO BLOWER DECK TO ALLOW FOR
CIRCULATOR BLOWER REMVOAL
S IDE S
1"
FRO NT
3"
B A CK
0"
B 1-V E NT S ING LE
1"
6"
1"
Suspended Furnace
EXISTING FURNACE REMOVAL
Top clearance for horizontal configuration - 1"
NOTE: When an existing furnace is removed from a venting system
serving other appliances, the venting system may be too large to
properly vent the remaining attached appliances.
HORIZONTAL INSTALLATION (AMVMODELS ONLY)
Line contact to framing is permitted when installed in the horizontal
configuration. “Line contact” is defined as the portion of the cabinet
that is formed by the intersection of the top and side.
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The following vent testing procedure is reproduced from the
American National Standard/National Standard of Canada for
Gas-Fired Central Furnaces ANSI Z21.47b-2002, CSA-2.3b-2002
Section 1.23.1. The following steps shall be followed with each
appliance connected to the venting system placed in operation,
while any other appliances connected to the venting system are
not in operation:
DRAFTS OR DEAD SPOTS
-BEHIND DOORS
-IN CORNERS
HOT
COLD
-UNDER CABINETS
a. Seal any unused openings in the venting system;
b. Inspect the venting system for proper size and horizontal
pitch, as required by the National Fuel Gas Code, ANSI
Z223.1 or the CAN/CSA B149 Installation Codes and these
instructions. Determine that there is no blockage or
restriction, leakage, corrosion and other deficiencies which
could cause an unsafe condition;
c. In so far as practical, close all building doors and windows
and all doors between the space in which the appliance(s)
connected to the venting system are located and other
spaces of the building. Turn on clothes dryers and any
appliance not connected to the venting system. Turn on
any exhaust fans, such as range hoods and bathroom
exhausts, so they shall operate at maximum speed. Do not
operate a summer exhaust fan. Close fireplace dampers;
d. Follow the lighting instructions. Place the appliance being
inspected in operation. Adjust thermostat so appliance shall
operate continuously;
e. Test for draft hood equipped appliance spillage at the draft
hood relief opening after 5 minutes of main burner
operation. Use the flame of a match or candle;
Thermostat Influences
Consult the instructions packaged with the thermostat for mounting
instructions and further precautions.
V. COMBUSTIONAND VENTILATIONAIR REQUIREMENTS
WARNING
O
AVOID PRO PERTY DAMAGE, PERSONAL INJURY OR DEATH, SUFFICIENT
FRESH AIR FO R PROPER COMBUSTION AND VENTILATION OF FLUE G ASES MUST
BE SUPPLIED. O ST HOMES REQ UIRE OUTSIDE AIR BE SUPPLIED INTO THE
T
M
FURNACE AREA.
Improved construction and additional insulation in buildings have
reduced heat loss by reducing air infiltration and escape around
doors and windows. These changes have helped in reducing
heating/cooling costs but have created a problem supplying
combustion and ventilation air for gas fired and other fuel burning
appliances. Appliances that pull air out of the house (clothes
dryers, exhaust fans, fireplaces, etc.) increase the problem by
starving appliances for air.
f. After it has been determined that each appliance connected
to the venting system properly vents when tested as outlined
above, return doors, windows, exhaust fans, fireplace
dampers and any other gas burning appliance to their
previous conditions of use;
House depressurization can cause back drafting or improper
combustion of gas-fired appliances, thereby exposing building
occupants to gas combustion products that could include carbon
monoxide.
If this furnace is to be installed in the same space with other gas
appliances, such as a water heater, ensure there is an adequate
supply of combustion and ventilation air for the other appliances.
Refer to the latest edition of the National Fuel Gas Code NFPA 54/
ANSI Z223.1 (Section 5.3), or CAN/CSA B149 Installation Codes
(Sections 7.2, 7.3, or 7.4), or applicable provisions of the local
building codes for determining the combustion air requirements
for the appliances.
g. If improper venting is observed during any of the above
tests, the venting system must be corrected.
Corrections must be in accordance with the latest edition of the
National Fuel Gas Code NFPA 54/ANSI Z223.1 and/or CAN/CSA
B149 Installation Codes.
If resizing is required on any portion of the venting system, use the
appropriate table in Appendix G in the latest edition of the National
Fuel Gas Code ANSI Z223.1 and/or CAN/CSA B149 Installation
Codes.
This furnace must use indoor air for combustion. It cannot be
installed as a direct vent (i.e., sealed combustion) furnace.
THERMOSTAT LOCATION
Most homes will require outside air be supplied to the furnace
In an area having good air circulation, locate the thermostat about area by means of ventilation grilles or ducts connecting directly to
five feet high on a vibration-free inside wall. Do not install the the outdoors or spaces open to the outdoors such as attics or
thermostat where it may be influenced by any of the following:
crawl spaces.
• Drafts, or dead spots behind doors, in corners, or under
cabinets.
• Hot or cold air from registers.
The following information on air for combustion and ventilation is
reproduced from the National Fuel Gas Code NFPA 54/ANSI
Z223.1 Section 5.3.
• Radiant heat from the sun.
• Light fixtures or other appliances.
• Radiant heat from a fireplace.
5.3.1 General:
(a) The provisions of 5.3 apply to gas utilization equipment
installed in buildings and which require air for combustion,
ventilation and dilution of flue gases from within the building.
They do not apply to (1) direct vent equipment which is
constructed and installed so that all air for combustion is
obtained from the outside atmosphere and all flue gases
are discharged to the outside atmosphere, or (2) enclosed
furnaces which incorporate an integral total enclosure and
use only outside air for combustion and dilution of flue
gases.
• Concealed hot or cold water pipes, or chimneys.
• Unconditioned areas behind the thermostat, such as an
outside wall.
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Chimney or Gas Vent
NOTE: Each opening must have
a free area of not less than one
square inch per 1000 BTU of
the total input rating of all equip-
ment in the enclosure, but not
less than 100 square inches.
(b) Equipment shall be installed in a location in which the
facilities for ventilation permit satisfactory combustion of
gas, proper venting and the maintenance of ambient
temperature at safe limits under normal conditions of use.
Equipment shall be located so as not to interfere with
proper circulation of air. When normal infiltration does not
provide the necessary air, outside air shall be introduced.
Opening
Water
Heater
Furnace
(c) In addition to air needed for combustion, process air shall
be provided as required for: cooling of equipment or
material, controlling dew point, heating, drying, oxidation or
dilution, safety exhaust, odor control, and air for
compressors.
Opening
Equipment Located in Confined Spaces;
All Air from Inside Building. See 5.3.3-a.
(d) In addition to air needed for combustion, air shall be
supplied for ventilation, including all air required for comfort
and proper working conditions for personnel.
(b) All Air from Outdoors: The confined space shall be provided
with two permanent openings, one commencing within 12
inches of the top and one commencing within 12 inches of
the bottom of the enclosure. The openings shall
communicate directly, or by ducts, with the outdoors or
spaces (crawl or attic) that freely communicate with the
outdoors.
(e) While all forms of building construction cannot be covered
in detail, air for combustion, ventilation and dilution of flue
gases for gas utilization equipment vented by natural draft
normally may be obtained by application of one of the
methods covered in 5.3.3 and 5.3.4.
(f) Air requirements for the operation of exhaust fans, kitchen
ventilation systems, clothes dryers, and fireplaces shall be
considered in determining the adequacy of a space to
provide combustion air requirements.
1. When directly communicating with the outdoors, each
opening shall have a minimum free area of 1 square
inch per 4,000 BTU per hour of total input rating of all
equipment in the enclosure.
5.3.2 Equipment Located in Unconfined Spaces:
In unconfined spaces (see definition below) in buildings,
infiltration may be adequate to provide air for combustion
ventilation and dilution of flue gases. However, in buildings
of tight construction (for example, weather stripping, heavily
insulated, caulked, vapor barrier, etc.), additional air may
need to be provided using the methods described in 5.3.3-
b or 5.3.4.
Chimney or Gas Vent
Ventilation louvers
(each end of attic)
NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Space, Unconfined.
Outlet Air
For purposes of this Code, a space whose volume is not
less than 50 cubic feet per 1,000 BTU per hour of the
aggregate input rating of all appliances installed in that
space. Rooms communicating directly with the space in
which the appliances are installed through openings not
furnished with doors, are considered a part of the
unconfined space.
Water
Heater
Furnace
Inlet Air
Alternate
air inlet
Ventilation louvers for
unheated crawl space
5.3.3 Equipment Located in Confined Spaces:
(a) All Air from Inside the Building: The confined space shall
be provided with two permanent openings communicating
directly with an additional room(s) of sufficient volume so
that the combined volume of all spaces meets the criteria
for an unconfined space. The total input of all gas utilization
equipment installed in the combined space shall be
considered in making this determination. Each opening
shall have a minimum free area of 1 square inch per 1,000
BTU per hour of the total input rating of all gas utilization
equipment in the confined space, but not less than 100
square inches. One opening shall be within 12 inches of
the top and one within 12 inches of the bottom of the
enclosure.
Equipment Located in Confined Spaces; All Air from Outdoors—
Inlet Air from Ventilated Crawl Space and Outlet Air to Ventilated
Attic. See 5.3.3-b
2. When communicating with the outdoors through vertical
ducts, each opening shall have a minimum free area of
1 square inch per 4,000 BTU per hour of total input
rating of all equipment in the enclosure.
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Chimney or Gas Vent
NOTE: The single opening must have
a free area of not less than one
square inch per 3000 BTU of
Chimney or Gas Vent
Ventilation louvers
(each end of attic)
the total input rating of all equip-
ment in the enclosure, but not less than
the sum of the areas of all vent
connectors in the confined space.
NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Opening
Outlet Air
Water
Heater
Alternate
Opening
Location
Water
Heater
Furnace
Inlet air duct
[ends 1 ft (300 mm)
Furnace
above floor]
Equipment Located in Confined Spaces; All Air from Outdoors
Through Ventilated Attic. See 5.3.3-b.
Equipment Located in Confined Spaces; All Air from Outdoors -
Single Air Opening. See 5.3.3-b.
3. When communicating with the outdoors through
horizontal ducts, each opening shall have a minimum
free area of 1 square inch per 2,000 BTU per hour of
total input rating of all equipment in the enclosure.
5. One permanent opening may be permitted, provided
the equipment has clearances of at least 1” from the
sides and back and 6” from the front. The opening shall
communicate directly with the outdoors and must be
located within 12” of the top of the enclosure. The
minimum free area of the opening shall be 1 square
inch per 3,000 BTU per hour of total input rating of all
equipment in the enclosure. The minimum free area
shall not be less than the sum of the areas of all vent
connectors in the confined space.
Chimney or Gas Vent
NOTE: The air duct openings
must have a free area of not
less than one square inch per
2000 BTU of the total input
rating of all equipment in the
5.3.4 Specially Engineered Installations:
enclosure*.
Outlet air duct
The requirements of 5.3.3 shall not necessarily govern when
special engineering, approved by the authority having
jurisdiction, provides an adequate supply of air for combustion,
ventilation, and dilution of flue gases.
Water
Heater
Furnace
Inlet air duct
5.3.5 Louvers and Grilles:
In calculating free area in 5.3.3, consideration shall be given
to the blocking effect of louvers, grilles or screens protecting
openings. Screens used shall not be smaller than 1/4 inch
mesh. If the area through a design of louver or grille is known,
it should be used in calculating the size of opening required
to provide the free area specified. If the design and free area
is not known, it may be assumed that wood louvers will have
20-25 percent free area and metal louvers and grilles will
have 60-75 percent free area. Louvers and grilles shall be
fixed in the open position or interlocked with the equipment
so that they are opened automatically during equipment
operation.
Equipment Located in Confined Spaces;
All Air from Outdoors. See 5.3.3-b.
*If the appliance room is located against an outside wall and the
air openings communicate directly with the outdoors, each opening
shall have a free area of not less than one square inch per 4,000
BTU per hour of the total input rating of all appliances in the
enclosure.
4. When ducts are used, they shall be of the same cross-
sectional area as the free area of the openings to which
they connect. The minimum dimension of rectangular
air ducts shall not be less than 3 inches.
5.3.6 Special Conditions Created by Mechanical Exhausting or
Fireplaces:
Operation of exhaust fans, ventilation systems, clothes dryers,
or fireplaces may create conditions requiring special attention
to avoid unsatisfactory operation of installed gas utilization
equipment.
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VI. CATEGORY I VENTING (VERTICAL VENTING)
WARNING
TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
THIS FURNACE MUST BE CATEGORY I VENTED. DO NOT VENT USING
CATEGORY III VENTING.
Supply
Air
Category I Venting is venting at a non-positive pressure. Afurnace
vented as Category I is considered a fan-assisted appliance
and the vent system does not have to be “gas tight.” NOTE: Gas
furnaces with induced draft blowers draw products of combustion
through a heat exchanger allowing, in some instances, common
venting with natural draft appliances (i.e. water heaters).
Upflow Rotated Induced Draft Blower
To rotate the induced draft blwer counterclockwise, proceed as
follows:
All installations must be vented in accordance with National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest edition. In Canada, the
furnaces must be vented in accordance with the National
Standard of Canada, CAN/CSA B149.1 and CAN/CSA B149.2 -
latest editions and amendments.
1. Disconnect electrical power from the furnace.
2. Disconnect the induced draft blower power leads, flue
pipe, and pressure switch tubing.
3. Remove the round cutout from the appropriate side of the
furnace.
4. Remove and save the four screws that hold the induced
draft blower to the flue collector box.
NOTE: The vertical height of the Category I venting system must
be at least as great as the horizontal length of the venting system.
5. Turn the induced draft blower 90 degrees clockwise, or
counterclockwise. The gasket is adhered to the back
plate and will rotate with the blower assembly.
WARNING
6. Reinstall the induced draft blower on the flue collector
box, using the four screws removed in Step 3. Tighten
screws to provide an airtight seal.
TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
COMMON VENTING WITH OTHER MANUFACTURER'S INDUCED DRAFT APPLIANCS
IS NOT ALLOWED.
7. Reconnect the induced draft blower power leads. NOTE:
If the wires are not long enough, pull extra wire from the
wire bundle in the blower compartment.
The minimum vent diameter for the Category I venting system is
as shown below:
8. Remove and save the screw that holds the pressure
switch to the furnace top panel.
MINIMUM VENT
MODEL
UPFLOW
4 Inch
4 Inch
N/A
COUNTERFLOW
4 Inch
9. Relocate the pressure switch to the same side as the
flue outlet in the hole provided.
70
90
115
140
4 Inch
4 Inch
N/A
10. Reconnect the draft blower power leads, flue pipe, and
pressure switch tubing. Make sure that all wires and the
pressure switch tubing are at least one inch from the flue
pipe, or any other hot surfaces.
N/A
Under some conditions, larger vents than those shown above
may be required or allowed.
11. Restore power to the furnace.
When an existing furnace is removed from a venting system
serving other appliances, the venting system may be too large to
properly vent the remaining attached appliances.
Counterflow units are shipped with the induced draft blower
discharging from the top of the furnace. (“Top” as viewed for a
counterflow installation.) Vent the furnace in accordance with the
National Fuel Gas Code NFPA 54/ANSIZ223.1 - latest edition. In
Canada, vent the furnace in accordance with the National
Standard of Canda, CAN/CSA B149.1 and CAN/CSA B149.2 -
latest editions and amendments.
Upflow or Horizontal units are shipped with the induced draft
blower discharging from the top of the furnace. (“Top” is as
viewed for an upflow installation.) The induced draft blower can
be rotated 90 degrees for Category I venting (Figure 3). For
horizontal installations, a four inch single wall pipe can be used
to extend the induced draft blower outlet 1/2” beyond the furnace
cabinet. Vent the furnace in accordance with the National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest edition. In Canada, vent
the furnace in accordance with the National Standard of Canada,
CAN/CSA B149.1 and CAN/CSA B149.2 - latest editions and
amendments.
WARNING
NEVER ALLOW THE PRODUCTS OF COMBUSTION, INCLUDING CARBON
MONOXIDE, TO ENTER THE RETURN DUCTWORK OR CIRCULATION AIR SUPPLY.
VII. EXTERIOR MASONRY CHIMNEYS
Venting
CATEGORY I FURNACES ONLY
THIS FURNACE IS NOT DESIGN CERTIFIED TO BE
HORIZONTALLY VENTED.
An exterior masonry chimney is defined as a “Masonry chimney
exposed to the outdoors on one or more sides below the roof
line.” The ability to use a clay lined masonry chimney depends
on a parameter not associated with interior chimneys. This
variable is the geographic location of the installation.
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Researchers have discovered that the winter design temperatures
have a direct impact on the suitability of this type of venting. In
most situations, the existing masonry chimneys will require a
properly sized metallic liner.
Proper Chimney
Termination?
(Check 1)
Line, terminate with
listed vent cap
(Fix 1)
No
No
Yes
WARNING
Chimney channel
free of solid and
liquid fuel
appliances?
(Check 2)
OSSIBILITY OF PROPERTY DAMAGE, PERSONAL INJURY OR DEATH
P
Change venting
arrangements
(Fix 2)
DAMAGING CONDENSATION CAN OCCUR INSIDE MASONRY CHIMNEYS WHEN
SINGLE FAN ASSISTED ATEGORY APPLIANCE (80% FURNACE) IS
A
C
I
AFUE
VENTED WITHOUT ADEQUATE DILUTION AIR.
O
NOT CONNECT AN 80%
MASONRY CHIMNEY UNLESS THE FURNACE IS COMMON VENTED
DRAFT HOOD EQUIPPED APPLIANCE OR THE CHIMNEY IS LINED WITH
METAL LINER OR YPE METAL VENT. LL INSTALLATIONS USING MASONRY
D
FURNACE TO
WITH
A
A
A
T
B
A
Yes
CHIMNEYS MUST BE SIZED IN ACCORDANCE WITH THE APPROPRIATE VENTING
TABLES. AN 80% FURNACE IS COMMON VENTED WITH DRAFT HOOD
F
A
I
EQUIPPED APPLIANCE, THE POTENTIAL FOR CONDENSATION DAMAGE MAY
Rebuild crown
(Fix 3)
and/or Reline
(Fix 4)
STILL EXIST WITH EXTREMELY COLD CONDITIONS, LONG VENT CONNECTORS,
Crown in good
condition
(Check 3)
EXTERIOR CHIMNEYS, OR ANY COMBINATION OF THESE CONDITIONS.
HE
T
No
RISK OF CONDENSATION DAMAGE IS BEST AVOIDED BY USING THE MASONRY
CHIMNEY AS
METAL VENT.
A
PATHWAY FOR PROPERLY SIZED METAL LINER OR
YPE
T
B
Yes
Crown
Wash
Cleanout free of
debris?
(Check 4)
Reline
(Fix 4)
Roof Line
No
No
No
Clay Tile Size Generally
12" x 12" (24" Length)
Clay Tile Size: 8" x 8" x12"
(Each x 24" Length)
Yes
Attic Floor
Liner in good
condition?
(Check 5)
Reline
(Fix 4)
1/2" to 1" Air Space
Yes
Dilution air
available?
(Check 6)
Reline
(Fix 4)
Second Floor
Yes
Throat
Damper
First Floor
Complete the
installation.
(Check 7)
Water Heater
Vent Connector
F.A.F. Vent
Connector
Breech
Natural Draft
Water Heater
Fan Assisted
Forced Air
Furnace
Clean Out
Basement Floor
Figure 8 - Typical Multiple Flue Clay Tile Chimney
CHECKLIST SUMMARY
This checklist serves as a summary of the items to be checked
before venting an 80+ furnace into a masonry chimney. In addition,
we recommend that a qualified serviceman use this checklist to
perform a yearly inspection of the furnace venting system.
CHECK 1 - PROPER CHIMNEY TERMINATION.
A masonry chimney used as a vent for gas fired equipment must
extend at least three feet above the highest point where it passes
through the roof. It must extend at least two feet higher than any
portion of a building within a horizontal distance of 10 feet. In
addition, the chimney must terminate at least 3 feet above any
forced air inlet located within 10 feet. The chimney must extend at
least five feet above the highest connected equipment draft hood
outlet or flue collar.
This checklist is only a summary. For detailed information on
each of the procedures mentioned, see the paragraph referenced
with each item.
If the chimney does not meet these termination requirements, but
all other requirements in the checklist can be met, it may be
possible for a mason to extend the chimney. If this will not be
practical, see Fix 1.
This inspection is based upon a draft topical report, “Masonry
Chimney Inspection and Relining”, issued by the Gas Research
Institute. While not yet finalized, we believe this report represents
the best information on this subject which is currently available.
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10’ or Less
2’ Min.
CHECK 3 - CHIMNEY CROWN CONDITION.
Damage from condensate usually shows up first in the crown. If
any of the following trouble signs are present, the condition of
the crown is not satisfactory:
2’ Min.
3’ Min.
a) Crown leaning
b) Bricks missing
c) Mortar missing
d) Tile liner cracked
e) No tile liner
Wall or
Parapet
Chimney
f) Salt staining at mortar joints. (White stains, and mortar
becomes sandy and/or erodes.)
10’ or Less
For problems a, b, or c, see Fix 3. If problems d, e, or f are
present, see Fix 4. IMPORTANT: It may be necessary to follow
both Fix 3 and Fix 4.
2’ Min.
Ridge
3’ Min.
CHECK 4 - DEBRIS IN CLEANOUT
A cleanout (dropleg) must be present such that the upper edge
of the cleanout cover is at least 12 inches below the lower edge
of the lowest chimney inlet opening.
Chimney
A chimney without a cleanout could become partially blocked by
debris. If no cleanout is present, the chimney must be refined
(Fix 4). Remove the cleanout cover, and examine the cleanout for
debris. If significant amounts of any of the following are found:
Termination 10 Feet Or Less From Ridge, Wall or Parapet
More Than 10’
• Fuel oil residue
• Bricks
• Mortar or sand
3’ Min.
• Pieces of the tile liner
• Rusted pieces of the metallic liner - reline the chimney
(Fix 4).
NOTE: No height above
parapet required when
distance from walls or
CHECK 5 - LINER CONDITION.
If a metal liner is present, it must be checked. It cannot be
assumed that all existing metal liners are correctly installed and
in good condition.
Chimney
Wall or
Parapet
parapet is more than 10 feet
Remove the lowest existing vent connector, and examine the
inside of the elbow or tee at the base of the liner. A small amount
f soot may be considered acceptable, provided the installer
acuums it away. If rusted pieces of the liner have collected here,
the metal liner must be removed and replaced (Fix 4).
Height above any
roof surface within
10 feet horizontally.
More than 10’
10’
Ridge
Next, gently tap the inside of the liner with a Phillips screwdriver.
If the screwdriver perforates the liner, or if the tapping does not
sound like metal hitting metal, the liner must be removed and
replaced (Fix 4).
2’ Min.
3’ Min.
Remember that all appliances must be vented inside the liner.
Venting one appliance inside the liner and another appliance
outside the liner is not acceptable.
Chimney
Next, use a flashlight and small mirror to sight up the liner. B vent
must be supported so as to not come into direct contact with the
chimney walls or tile liner. If it is not, it can probably be rehung so
as to be acceptable. A thimble or fire stop may be helpful here.
Termination More Than 10 Feet From Ridge, Wall or Parapet
CHECK 2 - ANY SOLID OR LIQUID FUEL APPLIANCES VENTED
INTO THIS CHIMNEY CHANNEL
Flexible liners should be hung straight or nearly straight. If it is
spiraled in the chimney and in good condition, it should be
rehung. To do this, break the top seal; pull up and cut off the
excess liner length, and refit the top seal. Use caution when
doing this, as the cut edges of flexible liners may be sharp.
Solid fuel appliances include fireplaces, wood stoves, coal
furnaces, and incinerators.
Liquid fuel appliances include oil furnaces, oil-fired boilers and
oil-fired water heaters.
The surfaces of the liner must be physically sound. If gaps or
holes are present, the metal liner must be removed and replaced
(Fix 4). Finally, confirm that the metal liner is the correct size for
the appliances to be installed. Use the GAMA tables and rules.
Appliances which burn propane (sometimes referred to as LP
(liquefied petroleum)) gas are considered gas-fired appliances.
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If a metal liner is not present, a clay tile liner must be present, or
the chimney must be lined (Fix 4).
In some cases, a shorter extension above the roof may be
possible with a liner than would be required with a masonry
chimney.
Use a flashlight and small mirror at the cleanout or vent connector
to inspect the clay tile liner. If any of the following problems are
present:
For further information on relining, see Fix 4.
FIX 2 -CHANGE VENTING ARRANGEMENTS
• Tile sections misaligned
• Tile sections missing
If the masonry chimney has more than one channel, it may be
possible to vent the gas appliances into one channel and vent
the solid or liquid fuel appliance(s) into another channel(s). Do
not vent an 80+ Furnace inside of a metal liner with other
appliances vented outside the liner.
• Gaps between tile sections
• Signs of condensate drainage at the cleanout or vent
connectors
• Mortar protruding from between tile sections
Alternatively, the homeowner may agree to discontinue use of
the fireplace (solid fuel appliance). If so, the tile liner must be
cleaned to remove creosote buildup. The fireplace opening must
then be permanently sealed.
• Use of sewer pipe or drainage pipe rather than an
approved fire clay tile reline the chimney (Fix 4).
Next, measure the size of the liner. It may be possible to do this
from the cleanout. The liner must be at least as large as the
minimum size established by the tables in National Fuel Gas
Code NFPA 54/ANSI Z223.1 - latest edition and in the National
Standard of Canada, CAN/CSA B149.1 and CAN/CSA B149.2 -
latest editions and amendments. If the liner is too small or too
large, then the chimney must be relined (Fix 4).
If oil-fired appliance(s) are being replaced by gas-fired
appliance(s), the tile liner must first be cleaned to remove the
fuel oil residue.
If none of the above options is practical, the furnace may need to
be vented vertically with a B Vent.
Under some conditions, Furnace *9 could be installed rather
than an *8. The * 9 can be vented horizontally or vertically through
PVC pipe.
CHECK 6 - DILUTION AIR.
If gas-fired appliances are to be vented into a clay tile liner, a
source of dilution air is required.
FIX 3 - REBUILD THE CROWN
Dilution air cannot be obtained through:
If the chimney crown is damaged, a qualified mason must repair
it in accordance with nationally recognized building codes or
standards. One such standard which may be referenced is the
Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning
Appliances, ANSI/NFPA 211.
• Induced draft appliances
• Natural draft appliances with vent dampers
Sufficient dilution air can ordinarily be obtained through the draft
hood of a natural draft appliance only if the appliance’s vent
connector does not include a vent damper. If dilution air will not
be available, the chimney must be relined (Fix 4).
FIX 4 - RELINING
Relining options include B vent and flexible liners.
CHECK 7 - COMPLETE THE INSTALLATION.
If the chimney has diagonal offsets, B vent probably cannot be
used.
If Checks 1 through 6 have been satisfactory, and the liner is an
acceptable size as determined by the tables in National Fuel
Gas Code NFPA54/ANSI Z223.1 - latest edition and in the National
Standard of Canada, CAN/CSA B149.1 and CAN/CSA B149.2 -
latest editions and amendments, then the clay tile liner can
probably be used as a vent for the gas appliances. However, the
installer must keep in mind the following factors which may
render the tile liner unsuitable for use as a vent:
If B vent is to be used, it must be supported adequately. Supports
(such as fire stops or thimbles) must be used to prevent the B
vent from coming into direct contact with the tile liner or chimney
walls. Direct contact would result in higher heat loss, with an
increased possibility of poor venting system performance.
It is not acceptable to vent one appliance inside the B vent and
other appliances outside. The excess space between the B vent
and the chimney walls must be covered at the top of the chimney
by a weatherproof, corrosion resistant flashing.
• Extremely cold weather
• Long vent connectors
• Masonry chimneys with no air gap between the liner and
the bricks. (In practice, this can be difficult to detect.)
The B vent should then be topped with a listed vent cap. The
listed vent cap will, when installed per the manufacturer’s
instructions, prevent problems due to rain, birds, or wind effects.
• Exterior chimneys (The tables in National Fuel Gas Code
NFPA 54/ANSI Z223.1 - latest edition and in the National
Standard of Canada, CAN/CSA B149.1 and CAN/CSA
B149.2 - latest editions and amendments assume interior
chimneys.)
A B-vent installed as described in this section is considered to
be an enclosed vent system, and the sizing tables in National
Fuel Gas Code NFPA 54/ANSI Z223.1 - latest edition and in the
National Standard of Canada, CAN/CSA B149.1 and CAN/CSA
B149.2 - latest editions and amendments may be used.
If, in the judgment of the local gas utility, installer, and/or local
codes; one or more of the above factors is likely to present a
problem, the chimney must be relined (Fix 4).
If a flexible liner is to be used, it must be made of the proper
materials:
FIX 1 - LINER TERMINATION
• For most residential applications, an aluminum liner
should be acceptable.
Any cap or roof assembly used with a liner must be approved by
the liner manufacturer for such use. The liner and cap/roof
assembly must then terminate above the roof in accordance
with the manufacturer’s instructions.
• If the combustion air supplied to the furnace will be
contaminated with compounds containing chlorine or
fluorine, a liner of AL294C stainless steel should be used.
14
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Common sources of chlorine and fluorine compounds
include indoor swimming pools and chlorine bleaches,
paint strippers, adhesives, paints, varnishes, sealers,
waxes (which are not yet dried) and solvents used during
construction and remodeling. Various commercial and
industrial processes may also be sources of chlorine/
fluorine compounds.
CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
• Heavier gauge 300 and 400 series stainless steel liners
were developed for use with oil or solid fuel appliances.
They are not suitable for use with gas-fired appliances.
Flexible liners specifically intended and tested for gas
applications are listed in the UL “Gas and Oil Equipment
Directory”. (UL Standard 1777).
WARNING
TO AVOID THE RISK OF INJURY, ELECTRICAL SHOCK OR DEATH, THE FURNACE
MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR,
IN THEIR ABSENCE, WITH THE LATEST EDITION OF THE ATIONAL LECTRIC
N
E
CODE.
For sizing of flexible liners, see Note 22 and the tables in the
National Fuel Gas Code NFPA 54/ANSI Z223.1 - latest edition and
in the National Standard of Canada, CAN/CSA B149.1 and CAN/
CSA B149.2 - latest editions and amendments.
WIRING HARNESS
The wiring harness is an integral part of this furnace. Field
alteration to comply with electrical codes should not be required.
Wires are color coded for identification purposes. Refer to the
wiring diagram for wire routings. If any of the original wire as
supplied with the furnace must be replaced, it must be replaced
with wiring material having a temperature rating of at least 105° C.
Any replacement wiring must be a copper conductor.
To install the liner, read and follow the liner manufacturer’s
instructions and your local codes. Excess liner length should be
pulled out of the chimney and cut off. Use caution when doing this,
as the cut edges of flexible liners may be sharp. Do not spiral
excess liner inside of the chimney. Support the liner as
recommended by the liner manufacturer.
115 VOLT LINE CONNECTIONS
Some manufacturers of flexible liners offer an insulation sleeve
designed to be added to the liner before it is installed in the
chimney. (Poured insulation, either vermiculite or other materials,
is no longer recommended.) Insulation will need to be added to
the flexible liner if:
Before proceeding with electrical connections, ensure that the
supply voltage, frequency, and phase correspond to that specified
on the unit rating plate. Power supply to the furnace must be NEC
Class 1, and must comply with all applicable codes. The furnace
must be electrically grounded in accordance with local codes or,
in their absence, with the latest edition of The National Electric
Code, ANSI NFPA 70 and/or The Canadian Electric Code CSA
C22.1.
• It is required by the liner manufacturer’s instructions.
• The previous liner was properly sized and installed, and
suffered from condensation damage.
• It is required by your local building codes.
Use a separate fused branch electrical circuit containing properly
sized wire, and fuse or circuit breaker. The fuse or circuit breaker
must be sized in accordance with the maximum overcurrent
protection specified on the unit rating plate. An electrical disconnect
must be provided at the furnace location.
Even if none of those three conditions exist which require additional
liner insulation, the installer may wish to consider it if:
• The local climate is very cold.
• The chimney is very tall.
• The vent connectors used are very long or have a large
number of elbows.
Line voltage wiring must enter into the junction box provided with
the furnace.
• Local experience indicates that flexible liners installed
without insulation are likely to have condensation problems.
NOTE: Line polarity must be observed when making field
connections.
Insulation must be selected and installed in accordance with the
liner manufacturer’s instructions.
JUNCTION BOX RELOCATION
Finally, cap the chimney and terminate the liner in accordance
with the liner manufacturer’s instructions.
WARNING
VIII. ELECTRICAL CONNECTIONS
DGES OF SHEET METAL HOLES MAY BE SHARP. SE GLOVES AS A PRE-
E
U
CAUTION WHEN REMOVING HOLE PLUGS.
WARNING
Line voltage connections can be made through either the right or
left side panel. The furnace is shipped configured for a left side
electrical connection. To make electrical connections through the
opposite side of the furnace, the junction box must be relocated to
the left side prior to making electrical connections. To relocate
the junction box, perform the following steps.
O AVOID THE RISK OF ELECTRICAL SHOCK, WIRING TO THE UNIT MUST BE
T
POLARIZED AND GROUNDED.
WARNING
O AVOID INJURY, ELECTRICAL SHOCK OR DEATH, DISCONNECT ELECTRICAL
T
WARNING
POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING.
O PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK,
T
DISCONNECT ELECTRICAL POWER BEFORE INSTALLING OR SERVICING THIS
UNIT.
15
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1. Remove both doors from the furnace.
As a two-stage furnace, the furnace integrated control module
provides terminals for both “W1” and “W2”, and “YLO” and “Y”
thermostat connections. This allows the furnace to support the
following system applications: ‘Two-Stage Heating Only’, ‘Two-
Stage Heating with Single-Stage Cooling’, and ‘Two-Stage
Heating with Two-Stage Cooling’. Refer to the following figures
and table for proper connections to the integrated control module.
2. Remove and save the screws holding the junction box to
the left side of the furnace.
3. Models that have the junction box located in the blower
compartment will need to rotate the junction box 180
degrees. Models that have the junction box located in the
burner compartment will need to move the juction box
directly over.
Low voltage connections can be made through either the right or
left side panel. Thermostat wiring entrance holes are located in
the blower compartment. The following figure shows connections
for a “heat only” system and “heat/cool system”.
4. Attach the junction box to the right side of the furnace,
using the screws removed in step 2.
5. Check the location wiring. Confirm that it will not be
damaged by heat from the burners or by the rotation of the
fan. Also confirm that wiring location will not interfere with
filter removal or other maintenance.
This furnace is equipped with a 40 VA transformer to facilitate
use with most cooling equipment. Consult the wiring diagram,
located on the blower compartment door, for further details of
115 Volt and 24 Volt wiring.
After the junction box is in the desired location, use washers to
connect field-supplied conduit to the junction box in accordance
with NEC and local codes. Connect hot, neutral, and ground
wires as shown in the furnace wiring diagram. The wires and
ground screw are located in the furnace junction box.
SINGLE STAGE THERMOSTAT APPLICATION
Thermostat
Single-Stage Heating with
Single-Stage Cooling
Low voltage wires may be connected to the terminal strip as
shown in Figure 12.
( )
W
Y
IMPORTANT NOTE: To avoid possible equipment malfunction,
route the low voltage wires to avoid interference with filter removal
or other maintenance.
G
G
R
R
Furnace Integrated
Control Module
DEHUM
TWIN
O
YLO
Y
Y
B/C
W1 W2
NEU
HOT
Dehumidistat
[Optional]
C
Remote
Condensing Unit
(Single-Stage Cooling)
Single-Stage Heating with Single-Stage Cooling
NOTE:
To apply a single-stage heating thermostat, the
thermostat selector jumper on the integrated Control
module must be set on single stage.
W2
Thermostat
Two-Stage Heating
Integrated Ignition Control
with
Single-Stage Cooling
( )
W1
Y
WARNING
G
G
R
R
TO AVOID THE RISK OF INJURY, ELECTRICAL SHOCK OR DEATH, THE FURNACE
MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR,
IN THEIR ABSENCE, WITH THE LATEST EDITION OF THE NATIONAL ELECTRIC
CODE.
Furnace Integrated
Control Module
DEHUM
TWIN
YLO
O
Y
Y
B/C
W1 W2
NEU
HOT
Dehumidistat
[Optional]
C
To ensure proper unit grounding, the ground wire should run
from the furnace ground screw located inside the furnace junction
box all the way back to the electrical panel. NOTE: Do not use
gas piping as an electrical ground. To confirm proper unit
grounding, turn off the electrical power and perform the following
check.
Remote
Condensing Unit
(Single-Stage Cooling)
Two-Stage Heating with Single-Stage Cooling
1. Measure resistance between the neutral (white)
connection and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch
which interrupts unit voltage when the blower door is opened for
servicing. Do not defeat this switch.
24VOLT THERMOSTAT WIRING
NOTE: Wire routing must not interfere with circulator blower
operation, filter removal, or routine maintenance.
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24VOLT DEHUMIDISTAT WIRING
Thermostat
Two-Stage Heating
with
The optional usage of a dehumidistat allows the furnace’s
circulator blower to operate at a slightly lower speed during a
combined thermostat call for cooling and dehumidistat call for
dehumidification. This lower blower speed enhances
dehumidification of the conditioned air as it passes through the
AC coil. For proper function, a dehumidistat applied to this
furnace must operate on 24 VAC and utilize a switch which opens
on humidity rise.
YLO
W2
Two-Stage Cooling
( )
W1
Y
G
G
R
R
Furnace Integrated
DEHUM
TWIN
O
YLO
YLO
Y
B/C
W1 W2
Control Module
To install/connect a dehumidistat:
1. Turn OFF power to furnace.
2. Secure the dehumidistat neutral wire (typically the white
lead) to the screw terminal marked “DEHUM” on the
furnace integrated control module.
NEU
HOT
Dehumidistat
[Optional]
Y
C
Remote
Condensing Unit
(Two-Stage Cooling)
3. Secure the dehumidistat hot wire (typically the black lead)
to the screw terminal marked “R” on the furnace integrated
control module.
Two-Stage Heating with Two-Stage Cooling
Thermostat Diagrams
4. Secure the dehumidistat ground wire (typically the green
lead) to the ground screw on the furnace junction box.
NOTE: Ground wire may not be present on all
dehumidistats.
SETTING THE HEAT ANTICIPATOR
The following method should be used in measuring the amp
draw of the control circuit to assure proper adjustment of the
thermostat heat anticipator
5. Turn ON power to furnace.
To enable the dehumidify function on the integrated control
module:
R
R
1. Cut the jumper wire labeled “CUT FOR DEHUM” located
adjacent to the DEHUM screw terminal.
Once the jumper wire is cut, the dehumidify function is enabled
during a combination call for cooling (T-Stat) and dehumidification
(Dehum-Stat). The yellow LED adjacent to the DEHUM screw
terminal will be illuminated during dehumidification.
• Wrap the “R” leg around a clip-on amp meter 10 times.
• Energize the furnace in the heat mode.
• Record the reading.
• Divide this reading by 10.
• Set the heat anticipator on the thermostat to match this
reading.
DEHUM
TWIN
0
0
YL0
Y
B/C
G
R
R
W1 W2
1
T P
T P
DEHUMIDIFICATION
LED (YELLOW)
YL0
Y
B/C4 R 8 G
W1 W2
2
1 9 1 R
7
D S
3
D S
5 S D
4
D S
5
R 8
2
R 2
4
W 1
W 3
8 2 R 1
CUT FOR
DEHUM
Example: If the reading on the amp meter is “4”, divide this by 10.
The anticipator setting will be .4 amps.
DEHUMIDIFICATION
JUMPER WIRE
2 2 R 1
(CUT TO ENABLE)
5
C R 3
SINGLE-STAGE THERMOSTAT APPLICATION
FOSSIL FUEL APPLICATIONS
A single-stage thermostat with only one heating stage can be
used to control this furnace. The application of a single-stage
thermostat does not offer “true” thermostat-driven two-stage
operation, but provides a timed transition from low to high fire.
The furnace will run on low stage for a fixed period of time before
stepping up to high stage to satisfy the thermostat’s call for heat.
The delay period prior to stepping up can be set at either 5 or 10
minutes through the DIP switch adjacent to the Heat Off delay
DIP switches on the integrated control module. To use a single-
stage thermostat, turn off power to the furnace, move the
thermostat selection jumper on the integrated control module
from the “two-stage” position to the “single-stage” position, turn
power back on. Refer to the following figures.
This furnace can be used in conjunction with a heat pump in a
fossil fuel application. A fossil fuel application refers to a
combined gas furnace and heat pump installation which uses
an outdoor temperature sensor to determine the most cost
efficient means of heating (heat pump, gas furnace, or both).
A heat pump thermostat with three stages of heat is required to
properly use a two-stage furnace in conjunction with a heat pump.
Refer to the fossil fuel kit installation instructions for additional
thermostat requirements.
Strictly follow the wiring guidelines in the fossil fuel kit installation
instructions. All furnace connections must be made to the furnace
two-stage integrated control module and the “FURNACE”
terminal strip on the fossil fuel control board.
T-Stat selection jumper in
single-stage thermostat
position.
T
W
O
T
W
O
TSTAT
TSTAT
OFF
S
I
N
G
L
S
I
N
G
L
ON
3
3
2
1
2
1
E
E
DIP switch position 3: ON
Delay Period: 10 minutes.
DIP switch position 3: OFF
Delay Period: 5 minutes.
17
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115 VOLT LINE CONNECTION OF ACCESSORIES (HUMIDIFIER
AND ELECTRONIC AIR CLEANER)
IX. GAS SUPPLY AND PIPING
GENERAL
The furnace rating plate includes the approved furnace gas input
rating and gas types. The furnace must be equipped to operate
on the type of gas applied. This includes any conversion kits
required for alternate fuels and/or high altitude.
WARNING
TO AVOID PERSONAL INJURY, ELECTRICAL SHOCK OR DEATH, DISCONNECT
ELECTRICAL POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL
WIRING.
CAUTION
The furnace integrated control module is equipped with line voltage
accessory terminals for controlling power to an optional field-
supplied humidifier and/or electronic air cleaner.
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET
T
GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE
WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING.
The accessory load specifications are as follows:
Inlet gas supply pressures must be maintained within the ranges
specified in the following table. The supply pressure must be
constant and available with all other household gas fired
appliances operating. The minimum gas supply pressure must
be maintained to prevent unreliable ignition. The maximum must
not be exceeded to prevent unit overfiring.
Humidifier
Electronic Air Cleaner
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
Turn OFF power to the furnace before installing any accessories.
Follow the humidifier or air cleaner manufacturers’ instructions
for locating, mounting, grounding, and controlling these
accessories. Accessory wiring connections are to be made
through the 1/4" quick connect terminals provided on the furnace
integrated control module. The humidifier and electronic air
cleaner hot and neutral terminals are identified as HUM and EAC.
All field wiring must conform to applicable codes. Connections
should be made as shown in the following illustration.
Inlet Gas Supply Pressure
Natural Gas
Propane Gas
Minimum: 5.0" w.c. Maximum:10.0" w.c.
Minimum: 11.0" w.c. Maximum:13.0" w.c.
NOTE: Adjusting the minimum supply pressure below the limits
in the above table could lead to unreliable ignition. Gas input to
the burners must not exceed the rated input shown on the rating
plate. Overfiring of the furnace can result in premature heat
exchanger failure. Gas pressures in excess of 13 inches water
column can also cause permanent damage to the gas valve.
Control Module
Neutral 120 VAC
Hot 120 VAC
At all altitudes, the manifold pressure must be within 0.3 inches
w.c. of that listed in the Product Data Book applicable to your
model* for the fuel used. At all altitudes and with either fuel, the air
temperature rise must be within the range listed on the furnace
nameplate. Should this appliance be converted to LP, refer to the
instructions included in the factory authorized LP conversion kit
LPT-03B .
Air Cleaner
Humidifier
Optional
Accessories
{
Figure 15 - Accessories Wiring
If it is necessary for the installer to supply additional line voltage
wiring to the inside of the furnace, the wiring must conform to all
local codes, and have a minimum temperature rating of 105°C.
All line voltage wire splices must be made inside the furnace
junction box.
HIGH ALTITUDE DERATE
IMPORTANT NOTE: The furnace will naturally derate itself with
altitude. Do not attempt to increase the firing rate by changing
orifices or increasing the manifold pressure. This can cause poor
combustion and equipment failure.
The integrated control module humidifier terminals (HUM) are
energized with 115 volts whenever the induced draft blower is
energized. The integrated control module electronic air cleaner
terminals (EAC) are energized with 115 volts whenever the
circulator blower is energized.
When this furnace is installed at high altitude, the appropriate
High Altitude orifice kit must be applied. The furnace is supplied
with orifices sized for natural gas at altitudes up to 4,500 feet
using a heating value of approximately 1,000 Btu/hr, and should
not normally require change. Most cases will not require a change
at altitudes up to 7,500 feet. For use at altitudes in excess of 4,500
feet, refer to the following table for maximum input rates based on
altitude. Contact your local gas utility for the heating value of the
gas. Refer to the National Fuel Gas Code ANSI Z223.1 and the
following section to calculate firing rates.
24 VAC HUM
1. 24 VAC Hum - A ¼” insulated male quick connect terminal
on the pressure switch provides 24 VAC humidifier control.
this terminal will be powered any time the pressure switch
is closed. To connect 24 VAC hum, connect 24vac line of
humidifier to piggyback on the pressure switch. The com
side of the humidfier to C on the terminal strip on the control
board (or to com side to 24VAC transformer). Do not
connect 115V humidifier to these terminals.
18
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Input = 1,000 (heating value of the gas) X 3600 (constant) / 52.6
(meter time for 1 ft3 of gas)
Maximum Firing Rates at Altitude
Model (Kbtu/hr)
90
70
115
Input = 3,600,000 / 52.6
Input = 68,400 Btu/h
High
Fire
Low
Fire
High
Fire
Low
Fire
High
Fire
Low
Fire
Altitude
METER TIME IN MINUTES AND SECONDS FOR NORMAL INPUT
RATING OF FURNACES EQUIPPED FOR USE WITH NATURAL
GAS AT 0 - 2,000 FEET ALTITUDE
5,000
7,500
57,000
53,000
52,000
42,000
39,000
37,500
74,000
72,000
71,000
54,000
53,000
49,000
92,000
88,000
84,000
66,500
64,500
60,500
10,000
Firing rates may be lower than listed in table.
115,000 kBtu/hr input models require pressure switch change above 7,500'.
Use switch B1370209.
Heat Value
Meter Size
ft3
Input
Btu/hr
900
1,000
1040
1,100
Min. Sec. Min. Sec. Min. Sec. Min. Sec.
It is important to check and adjust the input rate of the furnace to
prevent an overfiring situation. Overfiring can cause premature
heat exchanger failure. The input is controlled by the supply
pressure, orifice size, manifold pressure and heating (calorific)
value of the gas.
1
10
1
10
1
10
1
10
1
1
21
1
30
1
33
1
39
40,000
60,000
80,000
100,000
120,000
13 30 15 00 15 36 16 30
0
9
0
6
0
5
0
4
54
0
1
00
1
03
1
06
10 10 10 24 11 00
41
45
32
24
27
30
0
7
0
6
0
5
45
30
36
00
30
00
0
7
0
6
0
5
47
48
37
14
31
12
0
8
0
6
0
5
50
15
40
36
33
30
The supply pressure must be measured with this and all other
gas burning appliances in operation. The supply pressure must
be adjusted to the pressure range stated on the series and rating
plate. Applications for altitudes in excess of 4,500 feet may require
an orifice change. Alternately standard de-rate for altitude from
National Fuel Gas Code ANSI Z223.1 of 4% per 1000’ may be
taken. Refer to the most recent version of ANSI Z223.1 for correct
gase orifice. The orifices must be selected using the table below.
The furnace derate is 4% for each 1,000 feet above sea level. This
table is based upon a heating value of approximately 1,000 Btu/ft3
10
In Canada, the series and rating plate input for the furnace apply
to installations up to 2,000 feet (610m) above sea level. Kit HA-02
for natural and LP gases is required to convert furnaces from
elevations of 2,000 to 4,500 feet (610m to 1,370m). Canadian
certification applies to the installations of up to 4,500 feet above
sea level. Installations above 4,500 feet are subject to acceptance
by the local authorities having jurisdiction.
NAT. GAS
ALTITUDE
ORIFICE SIZE
Do not derate the furnace by adjusting the manifold pressure to a
lower pressure than specified on the furnace rating plate. The
combination of the lower air density and a lower manifold pressure
will prohibit the burner orifice from drawing the proper amount of
air into the burner. This may cause incomplete combustion,
flashback, and possible yellow tipping.
0 - 2,000
3,000
#43
#44
#44
#45
4,000
5,000
6,000
7,000
#45
#46
In some areas the gas supplier may artificially derate the gas in
an effort to compensate for the effects of altitude. If the gas is
artificially derated, the appropriate orifice size must be determined
based upon the BTU/ft3 content of the derated gas and the altitude.
Refer to the National Fuel Gas Code, NFPA 54/ANSI Z223.1, and
information provided by the gas supplier to determine the proper
orifice size.
The input to the furnace must be checked AFTER reorificing.
For altitudes above 7,000 feet, refer to appropriate section of the
National Fuel Gas Code, ANSI Z223.1. To calculate the input of the
furnace for installations in altitudes over 2,000 - 7,000 feet, use
the following formula:
Some models require a pressure switch change due to the reduced
air density above certain altitudes. Refer to the following table to
determine proper pressure switch settings for your application.
Corrected Input = Series & Rating Plate Input - (Altitude X .04) X
(Series & Rating Plate Input / 1000)
A different pressure switch may be required at high altitude
regardless of the Btu/ft3 content of the fuel used. Contact your
distributor for appropriate altitude ranges and pressure switch
kits.
Example:
Corrected input for a 90,000 Btu/hr. appliance installed at an
altitude of 6,000 ft. utilizing natural gas with a heating value of
1,000 Btu/ft3 is determined by-
Corrected Input = 90,000 - (6,000 X .04) X (90,000 / 1,000)
Corrected Input = 90,000 - (240 X 90)
Corrected Input = 90,000 - 21,600
Pressure Switch Changes
Setting
Furnace Input (kBtu/hr)
Altitude(ft)
High
Low
Corrected Input = 68,400
70
90
NR
NR
Using the orifices sized as shown in the table for 6,000 feet (#45),
a meter time of 52.6 seconds is measured. The actual firing rate
of the furnace is:
0.5" w.c.
0.3" w.c.
115
7,500
19
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The following stipulations apply when connecting gas piping.
Refer to Figure 16 for typical gas line connections to the furnace.
PROPANE GAS CONVERSION
• Use black iron or steel pipe and fittings for the building
piping.
WARNING
• Use pipe joint compound on male threads only. Pipe joint
compound must be resistant to the action of the fuel used.
• Use ground joint unions.
• Install a drip leg to trap dirt and moisture before it can enter
the gas valve. The drip leg must be a minimum of three
inches long.
• Install a 1/8" NPT pipe plug fitting, accessible for test gage
connection, immediately upstream of the gas supply
connection to the furnace.
• Use two pipe wrenches when making connection to the
gas valve to keep it from turning. The orientation of the gas
valve on the manifold must be maintained as shipped from
the factory.
POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF
THE CORRECT CONVERSION KITS ARE NOT INSTALLED. HE APPROPRIATE KITS
T
MUST BE APPLIED TO INSURE SAFE AND PROPER FURNACE OPERATION. LL
A
CONVERSIONS MUST BE PERFORMED BY A QUALIFIED INSTALLER OR SERVICE
AGENCY.
This unit is configured for natural gas. The appropriate
manufacturer’s propane gas conversion kit, must be applied for
propane gas installations. Refer to the “Propane Gas and/or
High Altitude Installations” section for details.
Contact your distributor for a tabular listing of appropriate
manufacturer’s kits for propane gas and/or high altitude
installations. The indicated kits must be used to insure safe and
proper furnace operation. All conversions must be performed by
a qualified installer, or service agency.
• Install a manual shutoff valve between the gas meter and
unit within six feet of the unit. If a union is installed, the
union must be downstream of the manual shutoff valve,
between the shutoff valve and the furnace.
GAS PIPING CONNECTIONS
GENERAL
• Tighten all joints securely.
• Connect the furnace to the building piping by one of the
following methods:
CAUTION
– Rigid metallic pipe and fittings.
TO AVOID POSSIBLE UNSATISFACTORY OPERATION OR EQUIPMENT DAMAGE
DUE TO UNDERFIRING OF EQUIPMENT, USE THE PROPER SIZE OF
NATURAL/PROPANE GAS PIPING NEEDED WHEN RUNNING PIPE FROM THE
METER/TANK TO THE FURNACE.
– Semi-rigid metallic tubing and metallic fittings.
Aluminum alloy tubing must not be used in exterior
locations.
– Use listed gas appliance connectors in accordance
When sizing a trunk line, be sure to include all appliances which
will operate simultaneously when sizing a trunk line.
with their instructions. Connectors must be fully in
the same room as the furnace.
The gas piping supplying the furnace must be properly sized based
on the gas flow required, specific gravity of the gas, and length of
the run. The gas line installation must comply with local codes, or
in their absence, with the latest edition of the National Fuel Gas
Code, NFPA 54/ANSI Z223.1.
– Protect connectors and semi-rigid tubing against
physical and thermal damage when installed. Ensure
aluminum-alloy tubing and connectors are coated to
protect against external corrosion when in contact with
masonry, plaster, or insulation, or subjected to
repeated wetting by liquids such as water (except rain
water), detergents, or sewage.
Natural Gas Capacity of Pipe
In Cubic Feet of Gas Per Hour (CFH)
Length of
Nominal Black Pipe Size
Pipe in Feet
1/2"
132
92
73
63
56
50
46
43
40
38
3/4"
1"
1 1/4"
1 1/2"
1600
1100
980
760
670
610
560
530
490
10
20
30
40
50
60
70
80
90
100
278
190
152
130
115
105
96
90
84
79
520
350
285
245
215
195
180
170
160
150
1050
730
590
500
440
400
370
350
320
305
Location of Manual Valve
(Installed Ahead of Ground
Joint Pipe Union)
Height Required
By Local Code
Ground Joint Pipe Union
To Be Installed Ahead Of
Gas Valve
460
(Pressure 0.5 psig or less and pressure drop of 0.3" W.C.; Based on
0.60 Specific Gravity Gas)
``
Drip Leg
BTUH Furnace Input
CFH =
Heating Value of Gas (BTU/Cubic Foot)
Reducing Coupling
1/2" x 1/8" with 1/8"
Pipe Plug To Measure
Line Gas Pressure
To connect the furnace to the building’s gas piping, the installer
must supply a ground joint union, drip leg, manual shutoff valve,
and line and fittings to connect to gas valve. In some cases, the
installer may also need to supply a transition piece from 1/2" pipe
to a larger pipe size.
General Furnace Layout
20
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This unit must be isolated from the gas supply system by closing
its manual shutoff valve before pressure testing of gas supply
piping system with test pressures equal to or less than 1/2 psig
(3.48 kPa).
UPFLOW INSTALLATIONS
When the gas piping enters through the right side of the furnace,
the installer must supply the following fittings (starting from the
gas valve):
PROPANE GAS TANKS AND PIPING
• 90 degree elbows (2).
• Close nipple.
• Straight pipe to reach the exterior of the furnace .
A ground joint union, drip leg, and manual shutoff valve must also
be supplied by the installer. In some cases, the installer may also
need to supply a transition piece from 1/2" to another pipe size.
WARNING
IF THE GAS FURNACE IS INSTALLED IN A BASEMENT, AN EXCAVATED
AREA OR A CONFINED SPACE, IT IS STRONGLY RECOMMENDED TO
CONTACT A PROPANE SUPPLIER TO INSTALL A GAS DETECTING
WARNING DEVICE IN CASE OF A GAS LEAK.
When the gas piping enters through the left side of the furnace,
the installer must supply the following fittings (starting from the
gas valve):
• SINCE PROPANE GAS IS HEAVIER THAN AIR, ANY LEAKING GAS CAN
SETTLE IN ANY LOW AREAS OR CONFINED SPACES.
• Straight pipe to reach the exterior of the furnace.
•
ROPANE GAS ODORANT MAY FADE, MAKING THE GAS UNDETECTABLE
P
• A ground joint union, drip leg, and manual shutoff valve
must also be supplied by the installer. In some cases, the
installer may also need to supply a transition piece from 1/
2 inch to another pipe size.
EXCEPT WITH A WARNING DEVICE.
A gas detecting warning system is the only reliable way to detect a
propane gas leak. Rust can reduce the level of odorant in propane
gas. Do not rely on your sense of smell. Contact a local propane
gas supplier about installing a gas detecting warning system. If
the presence of gas is suspected, follow the instructions on Page
3 of this manual.
COUNTERFLOW INSTALLATIONS
When the gas piping enters through the left side of the furnace,
the installer must supply a straight pipe to reach the exterior of the
furnace.
All propane gas equipment must conform to the safety standards
of the National Board of Fire Underwriters, NBFU Manual 58.
A ground join union, drip leg, and manual shutoff valve must also
be supplied by the installer. In some cases, the installer may also
need to supply a transition piece form 1/2” to another pipe size.
When the gas piping enters through the right side of the furnace,
the installer must supply the following fittings (starting at the gas
valve):
For satisfactory operation, propane gas pressure must be 11 inch
WC at the furnace manifold with all gas appliances in operation.
Maintaining proper gas pressure depends on three main factors:
1. Vaporization rate, depending on temperature of the liquid,
and “wetted surface” area of the container or containers.
• 90 degree elbow.
• Close nipple.
• 90 degree elbow.
• Straight pipe to reach exterior of furnace.
2. Proper pressure regulation. (Two-stage regulation is
recommended for both cost and efficiency).
3. Pressure drop in lines between regulators, and between
second stage regulator and the appliance. Pipe size will
depend on length of pipe run and total load of all
appliances.
GAS PIPING CHECKS
Before placing unit in operation, leak test the unit and gas
connections.
Complete information regarding tank sizing for vaporization,
recommended regulator settings, and pipe sizing is available
from most regulator manufacturers and propane gas suppliers.
WARNING
Since propane gas will quickly dissolve white lead and most
standard commercial compounds, special pipe dope must be
used. Shellac-based compounds resistant to the actions of
liquefied petroleum gases such as Gasolac®, Stalactic®, Clyde’s®
or John Crane® are satisfactory.
TO AVOID THE POSSIBILITY OF EXPLOSION OR FIRE, NEVER USE A MATCH OR
OPEN FLAME TO TEST FOR LEAKS.
Check for leaks using an approved chloride-free soap and water
solution, an electronic combustible gas detector, or other approved
testing methods.
Refer to the following illustration for typical propane gas
installations and piping.
CAUTION
5 to 15 PSIG
First Stage
Regulator
(20 PSIG Max.)
Continuous
11" W.C.
TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, THE
FOLLOWING INSTRUCTIONS MUST BE PERFORMED REGARDING GAS
CONNECTIONS, PRESSURE TESTING, LOCATION OF SHUTOFF VALVE AND
INSTALLATION OF GAS PIPING.
200 PSIG
Maximum
Second Stage
Regulator
NOTE: Never exceed specified pressures for testing. Higher
pressure may damage the gas valve and cause subsequent
overfiring, resulting in heat exchanger failure.
Disconnect this unit and shutoff valve from the gas supply piping
system before pressure testing the supply piping system with
pressures in excess of 1/2 psig (3.48 kPa).
Propane Gas Installation (Typ.)
21
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When the furnace is used in connection with a cooling unit, the
furnace should be installed in parallel with or on the upstream
side of the cooling unit to avoid condensation in the heating
element. With a parallel flow arrangement, the dampers or other
means used to control the flow of air must be adequate to prevent
chilled air from entering the furnace and, if manually operated,
must be equipped with means to prevent operation of either unit
unless the damper is in the full heat or cool position.
PROPANE GAS PIPING CHARTS
Sizing Between First and Second Stage Regulator*
Maximum Propane Capacities listed are based on 2 psig pressure drop at 10 psig setting.
Capacities in 1,000 BTU/hour.
Pipe or
Tubing
Length,
Feet
10
20
30
40
50
Nominal Pipe Size
Schedule 40
Tubing Size, O.D. Type L
3/8"
1/2"
5/8"
3/4"
7/8"
1/2"
3/4"
730
500
400
370
330
300
260
220
200
190
170
160
1,700
1,100
920
850
770
700
610
540
490
430
400
380
3,200
2,200
2,000
1,700
1,500
1,300
1,200
1,000
900
5,300
3,700
2,900
2,700
2,400
2,200
1,900
1,700
1,400
1,300
1,200
1,100
8,300
5,800
4,700
4,100
3,700
3,300
2,900
2,600
2,300
2,100
1,900
1,800
3,200
2,200
1,800
1,600
1,500
1,300
1,200
1,000
900
7,500
4,200
4,000
3,700
3,400
3,100
2,600
2,300
2,100
1,900
1,700
1,500
When the furnace is installed without a cooling coil, it is
recommended that a removable access panel be provided in the
outlet air duct. This opening shall be accessible when the furnace
is installed and shall be of such a size that the heat exchanger
can be viewed for visual light inspection or such that a sampling
probe can be inserted into the airstream. The access panel must
be made to prevent air leaks when the furnace is in operation.
60
80
100
125
150
175
200
830
780
730
830
770
720
When the furnace is heating, the temperature of the return air
entering the furnace must be between 55°F and 100°F.
To convert to capacities at 15 psig settings - multiply by 1.130
To convert to capacities at 5 psig settings - multiply by 0.879
When a furnace is installed so that supply ducts carry air circulated
by the furnace to areas outside the space containing the furnace,
the return air shall also be handled by a duct sealed to the furnace
casing and terminating outside the space containing the furnace.
Sizing Between Single or Second Stage Regulator and Appliance*
Maximum Propane Capacities Listed are Based on 1/2" W.C. pressure drop at 11" W.C. setting.
Capacities in 1,000 BTU/hour.
Pipe or
Tubing
Nominal Pipe Size
Schedule 40
FILTERS - READ THIS SECTION BEFORE INSTALLING THE
RETURN AIR DUCTWORK
Tubing Size, O.D. Type L
Length, 3/8"
Feet
1/2"
5/8"
3/4"
7/8" 1-1/8" 1/2"
3/4"
1" 1-1/4" 1-1/2"
10
20
30
40
50
39
26
21
19
18
16
13
11
10
9
92
62
50
41
37
35
29
26
24
21
19
17
199
131
107
90
79
72
62
55
48
43
329
216
181
145
131
121
104
90
81
72
66
60
501
346
277
233
198
187
155
138
122
109
100
93
935
630
500
427
376
340
289
255
224
202
187
172
275
189
152
129
114
103
89
78
69
63
54
567 1,071 2,205 3,307
Filters must be used with this furnace. Discuss filter maintenance
with the building owner. Filters do not ship with this furnace, but
must be provided by the installer. Filters must comply with UL900
or CAN/ULCS111 standards. If the furnace is installed without
filters, the warranty will be voided.
393
315
267
237
217
185
162
146
132
112
100
732 1,496 2,299
590 1,212 1,858
504 1,039 1,559
448
409
346
307
275
252
209
185
913 1,417
834 1,275
724 1,066
60
80
100
125
150
200
250
630
567
511
439
390
976
866
787
665
590
NOTE: An undersized opening will cause reduced airflow.
8
8
39
36
For air delivery of less than 1800 CFM, use a one side or bottom
return. For air delivery of 1800 CFM or higher, use either two-
sided returns or a one-sided return with a bottom return. Refer to
Minimum Filter Area tables at the end of this manual to determine
filter area requirements.
48
*Data in accordance with NFPA pamphlet NO. 54
X. CIRCULATING AIR AND FILTERS
DUCTWORK -AIR FLOW
UPRIGHT INSTALLATIONS
Depending on the installation and/or customer preference,
differing filter arrangements can be applied. Filters can be
installed in the central return register or a side panel external filter
rack kit (upflows), or the ductwork above a counterflow furnace. As
an alternative, a media air filter or electronic air cleaner can be
used as the requested filter. The following figures show possible
filter locations.
WARNING
NEVER ALLOW THE PRODUCTS OF COMBUSTION, INCLUDING CARBON
MONOXIDE, TO ENTER THE RETURN DUCTWORK OR CIRCULATION AIR SUPPLY.
Duct systems and register sizes must be properly designed for
the CFM and external static pressure rating of the furnace.
Ductwork should be designed in accordance with the
CIRCULATION AIR FILTERS
recommended methods of “Air Conditioning Contractors of One of the most common causes of a problem in a forced air
America” Manual D.
heating system is a blocked or dirty filter. Circulating air filters
must be inspected monthly for dirt accumulation and replaced if
necessary. Failure to maintain clean filters can cause premature
heat exchanger failure.
A duct system must be installed in accordance with Standards of
the National Board of Fire Underwriters for the Installation of Air
Conditioning, Warm Air Heating and Ventilating Systems.
Pamphlets No. 90A and 90B.
A new home may require more frequent replacement until all
construction dust and dirt is removed. Circulating air filters are to
be installed in the return air duct external to the furnace cabinet.
A closed return duct system must be used, with the return duct
connected to the furnace. NOTE: Ductwork must never be attached
to the back of the furnace. Supply and return connections to the
furnace may be made with flexible joints to reduce noise
transmission. To prevent the blower from interfering with
combustion air or draft when a central return is used, a connecting
duct must be installed between the unit and the utility room wall. A
room, closet, or alcove must not be used as a return air chamber.
WARNING
BEFORE PERFORMING ANY SERVICE ON THIS FURANCE, DISCONNECT THE
MAIN POWER SUPPLY. DO NOT OPERATE THE FURNACE WITHOUT
CIRCULATIONG AIR FILTERS IN PLACE.
22
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• If the two-stage thermostat changes the call from high heat
to low heat, the control will immediately switch the induced
draft blower and gas valve to their low stage settings. The
circulator blower will remain on high heating speed for
thirty seconds before switching to the low heat circulating
speed.
• R and W1 (or R and W1/W2) thermostat contacts open,
completing the call for heat.
• Gas valve closes, extinguishing flame.
• Induced draft blower is de-energized following a fifteen
second post purge. Humidifier terminals are de-energized.
• Circulator blower continues running for the selected heat
off delay period (90, 120, 150 or 180 seconds). The speed
run during this period depends on the last heat call provided
by the thermostat.
Minimum Filter Sizes
Filter Size (in2)
Furnace Input
45M
Type
160
241
320
400
370
320
483
640
800
738
Permanent
Permanent
Permanent
Permanent
Permanent
Disposable
Disposable
Disposable
Disposable
Disposable
68M
90M
115M
135M
45M
68M
90M
115M
135M
Permanent Nominal 600 F.P.M.
Disposable Nominal 300 F.P.M.
HORIZONTAL INSTALLATIONS
If the last call for heat was a call for high heat, the air
circulating motor will run on the high heating speed for
thirty seconds and then switch to the low heating speed for
the balance of the heat off delay period
Filters must be installed in either the central return register or in
the return air duct work.
XI. SEQUENCE OF OPERATION
(INTEGRATED IGNITION CONTROL)
Refer to Timing Charts for sequencing.
• Electronic air cleaner terminals is de-energized
• Circulator blower ramps down to OFF during the 30
seconds following the heat off delay period.
• Furnace awaits next call from thermostat.
The normal power up sequence is as follows:
NORMAL COOLING SEQUENCE - INTEGRATED IGNITION CONTROL
• 115 VAC power applied to furnace.
• R and YLO/G or Y/G thermostat contacts close, initiating a
call for cool.
• Integrated control module performs safety circuit checks.
• Outdoor fan and compressor are energized to their
appropriate speed.
• Integrated control module performs internal checks.
• Integrated control module flashes LED lights.
• Integrated control module monitors safety circuits
continuously.
• Furnace awaits call from thermostat.
• Circulator blower is energized on the appropriate cool
speed following a fixed five second on delay. The circulator
blower requires 30 seconds to ramp up to full speed.
Electronic air cleaner terminals are energized with
circulator blower.
NORMAL HEATING SEQUENCE
• R and W1 (or R and W1/W2) thermostat contacts close,
initiating a call for heat.
• Integrated control module performs safety circuit checks.
• Induced draft blower is energized on high speed for a 15-
second prepurge. Humidifier terminals are energized with
induced draft blower.
• Furnace circulator blower and outdoor cooling unit run their
appropriate speed, integrated control module monitors
safety circuits continuously.
• Induced draft blower steps to low speed following
prepurge. Low stage pressure switch contacts are closed.
• R and YLO/G or Y/G thermostat contacts open, completing
the call for cool.
• Igniter warm up begins upon step to low speed and
presence of closed low stage pressure switch contacts.
• Gas valve opens at end of igniter warm up period,
delivering gas to burners and establishing flame.
• Integrated control module monitors flame presence. Gas
valve will remain open only if flame is sensed.
• Outdoor fan and compressor are de-energized.
• Circulator blower continues running for a cool off delay
period. The OFF delay time and airflow level are
determined by the selected ramping profile.
• Electronic air cleaner terminals and circulator blower are
de-energized.
• If the thermostat call is for low heat, gas valve and induced
draft blower will continue on low stage. If the call is for high
heat, the gas valve and induced draft blower will change to
high stage.
• Furnace awaits next call from thermostat.
CONSTANT FAN
• R and G thermostat contacts close, initiating a call for fan.
• Integrated control module performs safety circuit checks.
• Circulator blower is energized on the appropriate heat
speed following a fixed thirty second blower on delay. The
circulator blower requires 30 seconds to ramp up to full
speed. Electronic air cleaner terminals are energized with
circulator blower.
• Furnace is now operating on the specified stage called for
by the two-stage thermostat.
• Furnace runs, integrated control module monitors safety
circuits continuously.
• If the two-stage thermostat changes the call from low heat
to high heat, the integrated control module will immediately
switch the induced draft blower, gas valve, and circulator
blower to their high stage settings.
• Circulator blower is energized on continuous fan speed
(56% of high stage cooling) following a five (5) second
delay. Electronic air cleaner terminals are energized.
• Circulator blower runs, integrated control module monitors
safety circuits continuously.
• R and G thermostat contacts open, completing the call for
fan.
• Circulator blower is de-energized. Electronic air cleaner
terminals are de-energized.
• Furnace awaits next call from thermostat.
23
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XII. START-UP PROCEDURE ANDADJUSTMENT
FURNACE SHUTDOWN
1. Set the thermostat to lowest setting.
2. Turn off the electrical power supply to the furnace.
Furnace must have a 115 VAC power supply properly connected
and grounded. Proper polarity must be maintained for correct
operation. An interlock switch prevents furnace operation if the
blower door is not in place. Keep the blower access door in place
except for inspection and maintenance.
3. Remove the burner compartment door and move the
furnace gas valve manual control to the OFF position.
4. Close manual gas shutoff valve external to the furnace.
5. Replace the burner compartment door.
This furnace is also equipped with a self-diagnosing electronic
control module. In the event a furnace component is not operating
properly, the control module LED will flash on and off in a factory-
programmed sequence, depending on the problem encountered.
This light can be viewed through the observation window in the
blower access door. Refer to the Troubleshooting Chart for further
explanation of the lighting codes.
GAS SUPPLY PRESSURE MEASUREMENT
CAUTION
TO PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET
GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE
WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING.
Follow the start-up and adjustment items, refer to further
information in Section XIII, Operational Checks.
WHITE-RODGERS 36G54 GAS VALVE
FURNACE OPERATION
The line pressure supplied to the gas valve must be within the
range specified below. The supply pressure can be measured at
the gas valve inlet pressure boss or at a hose fitting installed in
the gas piping drip leg. The supply pressure must be measured
with the burners operating. To measure the gas supply pressure,
use the following procedure.
Purge gas lines of air prior to start-up. Do not purge lines into an
enclosed burner compartment.
Check for leaks using an approved chloride-free soap and water
solution, an electronic combustible gas detector, or other approved
method. Verify that all required kits (propane gas, high altitude,
etc.) have been appropriately installed.
NOTE: An interlock switch prevents furnace operation if the blower
door is not in place. Keep the blower access doors in place
except for inspection and maintenance.
Open to
Atmosphere
meter
Mano
Hose
High Fire Regulator
Adjust
Outlet
Pressure Boss
Regulator
Vent
FURNACE START-UP
1. Close the manual gas shutoff valve external to the furnace.
2. Turn off the electrical power to the furnace.
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
A
NOTE: This furnace is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by
hand.
Low Fire
Regulator Adjust
5. Move the furnace gas valve manual control to the OFF
position.
Inlet
Pressure Boss
6. Wait five minutes then smell for gas. Be sure check near
the floor as some types of gas are heavier than air.
High Fire
Coil Terminal (HI)
Coaxial Coil
Terminal (M)
Common
Terminal (C)
Manometer
On/Off Switch
7. If you smell gas after five minutes, immediately follow the
instructions on page 3 of this manual. If you do not smell
gas after five minutes, move the furnace gas valve manual
control to the ON position.
White-Rodgers Model 36G54 Connected to Manometer
8. Replace the burner compartment door.
1. Turn OFF gas to furnace at the manual gas shutoff valve
external to the furnace.
9. Open the manual gas shutoff valve external to the furnace.
10. Turn on the electrical power to the furnace.
2. Connect a calibrated water manometer (or appropriate gas
pressure gauge) at either the gas valve inlet pressure boss
or the gas piping drip leg.
11. Adjust the thermostat to a setting above room temperature.
12. After the burners are lit, set the thermostat to desired
temperature.
NOTE: There is an approximate 40 second delay between
thermostat energizing and burner firing.
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1. Turn OFF gas to furnace at the manual gas shutoff valve
external to the furnace.
2. Turn off all electrical power to the system.
Gas Line
Gas
Shutoff
Valve
3. Back outlet pressure test screw (inlet/outlet pressure boss)
out one turn (counterclockwise, not more than one turn).
4. Attach a hose and manometer to the outlet pressure boss
of the valve.
5. Turn ON the gas supply.
Gas Line
To Furnace
6. Turn on power and energize main (M) solenoid. Do not
energize the HI solenoid.
7. Measure gas manifold pressure with burners firing. Adjust
manifold pressure using the Manifold Gas Pressure table
shown below.
Open To
Atmosphere
Drip Leg Cap
With Fitting
8. Remove regulator cover screw from the low (LO) outlet
pressure regulator adjust tower and turn screw clockwise
to increase pressure, or counterclockwise to decrease
pressure.
Manometer Hose
9. Energize main (M) solenoid as well as the HI terminal.
10. Remove regulator cover screw from the HI outlet pressure
regulator adjust tower and turn screw clockwise to increase
pressure, or counterclockwise to decrease pressure.
Manometer
11. Turn off all electrical power and gas supply to the system.
12. Remove manometer hose from outlet pressure boss.
13. Turn outlet pressure test screw in to seal pressure port
(clockwise, 7 in-lb minimum).
14. Turn on electrical power and gas supply to the system.
15. Turn on system power and energize valve.
Measuring Inlet Gas Pressure (Alt. Method)
NOTE: If measuring gas pressure at the drip leg, a field supplied
hose barb fitting must be installed prior to making the hose
connection. If using the inlet pressure boss on the gas valve,
then use the 36G Valve Pressure Check Kit, Goodman Part No.
0151K00000S.
16. Using a leak detection solution or soap suds, check for
leaks at pressure boss screw. Bubbles forming indicate a
leak. SHUT OFF GASAND FIXALL LEAKS IMMEDIATELY.
NOTE: For gas to gas conversion, consult your dealer for
appropriate conversion.
3. Turn ON the gas supply and operate the furnace and all
other gas consuming appliances on the same gas supply
line.
4. Measure furnace gas supply pressure with burners firing.
Supply pressure must be within the range specified in the
Inlet Gas Supply Pressure table.
M a nifold Ga s P re ssure
Ga s
Ra te
Ra nge
Nom ina l
Inlet Gas Supply Pressure
Low S tage
High S tage
Low S tage
1.6 to 2.2" w.c. 1.9" w.c.
3.2 to 3.8" w.c. 3.5" w.c.
5.7 to 6.3" w.c. 6.0" w.c.
Natural
Natural Gas
Propane Gas
Minimum: 5.0" w.c. Maximum:10.0" w.c.
Minimum: 11.0" w.c. Maximum:13.0" w.c.
P ropane
If supply pressure differs from table, make the necessary
adjustments to pressure regulator, gas piping size, etc., and/or
consult with local gas utility.
High S tage 9.7 to 10.3" w.c. 10.0" w.c.
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY)
The gas input rate to the furnace must never be greater than that
specified on the unit rating plate. To measure natural gas input
using the gas meter, use the following procedure.
5. Turn OFF gas to furnace at the manual shutoff valve and
disconnect manometer. Reinstall plug before turning on
gas to furnace.
6. Turn OFF any unnecessary gas appliances stated in step
3.
1. Turn OFF the gas supply to all other gas-burning
appliances except the furnace.
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT
2. While the furnace is operating, time and record one
complete revolution of the smallest gas meter dial.
3. Calculate the number of seconds per cubic foot (sec/ ft3) of
gas being delivered to the furnace. If the dial is a one cubic
foot dial, divide the number of seconds recorded in step 2
by one. If the dial is a two cubic foot dial, divide the number
of seconds recorded in step 2 by two.
CAUTION
TO PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS
MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE.
ONLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE
PRESSURE REGULATOR.
4. Calculate the furnace input in BTUs per hour (BTU/ hr).
Input equals the sum of the installation’s gas heating value
and a conversion factor (hours to seconds) divided by the
number of seconds per cubic foot. The measured input
must not be greater than the input indicated on the unit
rating plate.
Only small variations in gas pressure should be made by adjusting
the gas valve pressure regulator. The manifold pressure must be
measured with the burners operating. To measure and adjust
the manifold pressure, use the following procedure.
25
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EXAMPLE:
CIRCULATOR BLOWER SPEED ADJUSTMENT
Installation’s gas heating (HTG) value: 1,000 BTU/ft3
(Obtained from gas supplier)
WARNING
Installation’s seconds per cubic foot: 34 sec/ ft3
Conversion Factor (hours to seconds): 3600 sec/hr
Input = (Htg. value x 3600) ÷ seconds per cubic foot
Input = (1,000 BTU/ft3 x 3600 sec/hr) ÷ 34 sec/ ft3
Input = 106,000 BTU/hr
TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, TURN
POWER TO THE FURNACE BEFORE CHANGING SPEED TAPS.
OFF
All furnaces are shipped with heating speed set at “B” and cooling
speed set at “D”. Use the following procedure to select the heating
and cooling speed needed for your unit.
This measured input must not be greater than the input
indicated on the unit rating plate.
Use the CFM LED (green), adjacent to the integrated control
module fuse to verify airflow quantity. The green CFM LED
blinks once for each 100 CFM of airflow.
5. Turn ON gas and relight appliances turned off in step 1.
Ensure all the appliances are functioning properly and that
all pilot burners are operating.
1. Determine the tonnage of the cooling system installed with
the furnace. If the cooling capacity is in BTU/hr divide it by
12,000 to convert capacity to TONs.
TEMPERATURE RISE
Air temperature rise is the temperature difference between supply
and return air. The proper amount of temperature rise is usually
obtained when the unit is operated at the rated input with the “as
shipped” blower speed. If the correct amount of temperature rise
is not obtained, it may be necessary to change the blower speed.
Example: Cooling Capacity of 30,000 BTU/hr.
30,000/12,000 = 2.5 Tons
2. Determine the proper air flow for the cooling system. Most
cooling systems are designed to work with air flows
between 350 and 450 CFM per ton. Most manufacturers
recommend an air flow of about 400 CFM per ton.
Example: 2.5 tons X 400 CFM per ton = 1000 CFM
An incorrect temperature rise can cause condensing in or
overheating of the heat exchanger. Determine and adjust the
temperature rise as follows. The temperature rise must be within
the range specified on the rating plate or Product Data Book
applicable to your model*.
The cooling system manufacturer’s instructions must be checked
for required air flow. Any electronic air cleaners or other devices
may require specific air flows, consult installation instructions of
those devices for requirements.
3. Knowing the furnace model, locate the high stage cooling
air flow charts in the Product Data Book applicable to your
model* . Look up the cooling air flow determined in step 2
and find the required cooling speed and adjustment
setting.
HEAT EXCHANGER
RADIATION "LINE OF SIGHT"
SUPPLY
AIR
TSUPPLY
Example:
A 70 kBtu furnace is to be installed with a 2.5
ton air conditioning system. The air flow
needed is 1000 CFM. Using the cooling
speed chart for the 70 kBtu furnace, find the
airflow closest to 1000 CFM. A cooling airflow
of 990 CFM can be attained by setting the
cooling speed to “C” and the adjustment to “-
” (minus).
RISE
=
TSUPPLY TRETURN
-
NOTE: Continuous Fan Speed will be 56% of
high stage cooling.
TRETURN
4. Locate the blower speed selection DIP switches on the
integrated control module. Select the desired “cooling”
speed tap by positioning switches 1 and 2 appropriately.
Select the desired “adjust” tap by positioning switches 3
and 4 appropriately. Refer to the following figure for switch
positions and their corresponding taps. Turn off power to
furnace for a minimum of 10 seconds, allowing motor to
reset and recognize new speed selection. Turn on power
to furnace. Verify CFM by counting the number of times the
green CFM LED blinks.
RETURN
AIR
Temperature Rise Measurement
1. Operate furnace with burners firing approximately 15
minutes. Ensure all registers are open and all duct
dampers are in their final (fully or partially open) position.
5. The multi-speed circulator blower also offers several
custom ON/OFF ramping profiles. These ramping profiles
may be used to enhance cooling performance and increase
comfort level. The ramping profiles are selected using
DIP switches 5 and 6. Refer to the following figure for
switch positions and their corresponding taps. Refer to
the bullet points below for a description of each ramping
profile. Turn off power to furnace for a minimum of 10
seconds, allowing motor to reset and recognize the new
profile selection. Turn on power to the furnace. Verify profile
selection by counting the green CFM LED blinks and timing
each step of the ramping profile.
2. Place thermometers in the return and supply ducts as
close to the furnace as possible. Thermometers must not
be influenced by radiant heat by being able to “see” the
heat exchanger.
3. Subtract the return air temperature from the supply air
temperature to determine the air temperature rise. Allow
adequate time for thermometer readings to stabilize.
4. Adjust temperature rise by adjusting the circulator blower
speed. Increase blower speed to reduce temperature rise.
Decrease blower speed to increase temperature rise.
Refer to the following section for speed changing details.
26
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Example:
The 70 kBtu is set for 990 CFM on cooling,
•
Profile A provides only an OFF delay of 1 minute at 100% of
the cooling demand airflow.
the “ADJUST” is set to “-” (minus). The four heating speeds
available are “A Minus”, “B Minus”, “C Minus”, and “D Minus”.
“B Minus” has a rise of 56°F for both stages which is within
the 30-60°F rise range for the 70 kBtu. This setting will
keep electrical consumption to a minimum. Set the “Heat”
speed DIP switches to “A”.
100% CFM
100% CFM
1 min
OFF
OFF
Cooling
Demand
7. Select the desired “heating” speed tap by positioning
switches 7 and 8 appropriately. Refer to figure above. Turn
off power to furnace for a minimum of 10 seconds, allowing
motor to reset and recognize new speed selection. Turn
on power to furnace. Verify selected CFM by counting the
green CFM LED blinks.
• Profile B ramps up to full cooling demand airflow by first
stepping up to 50% of the full demand for 30 seconds. The
motor then ramps to 100% of the required airflow. A 1
minute OFF delay at 100% of the cooling airflow.
In general lower heating speeds will: reduce electrical
consumption, lower operating sound levels of the blower, and
increase the outlet air temperature delivered to the home. The
speeds available allow the blower performance to be optimized
for the particular homeowner’s needs.
100% CFM
100% CFM
1 min
OFF
50% CFM
½ min
OFF
Cooling Demand
8
7
4
3
2
1
8
7
4
3
2
1
4
3
2
1
8
8
8
7
7
7
7
•
Profile C ramps up to 82% of the full cooling demand airflow
and operates there for approximately 7 ½ minutes. The
motor then steps up to the full demand airflow. Profile C
also has a 1 minute/100% OFF delay.
Heating
Speed
Tap A
Cooling
Speed
Tap A
Normal*
O
F
F
O
F
F
O
F
F
O
F
F
O
F
F
O
F
F
8
7
4
3
2
2
1
1
8
7
4
4
4
3
3
3
2
2
2
1
4
4
4
3
3
3
2
1
Heating
Speed
Tap B
Cooling
Speed
Tap B
*
+ (Plus)
Adjust
O
F
F
4
O
N
O
F
F
8
O
N
O
F
F
2
O
N
82% CFM
7 ½ min
100% CFM
100% CFM
1 min
OFF
OFF
8
7
3
7
1
1
Heating
Speed
Tap C
Cooling
Speed
Tap C
- (Minus)
Adjust
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
Cooling Demand
8
7
1
8
2
1
Heating
Speed
Tap D
*
Cooling
Speed
Tap D
Adjust Taps
indicates factory setting)
•
Profile D ramps up to 50% of the demand for ½ minute,
then ramps to 82% of the full cooling demand airflow and
operates there for approximately 7 ½ minutes. The motor
then steps up to the full demand airflow. Profile D has a 1/
2 minute at 50% airflow OFF delay.
(
*
O
N
O
N
O
N
O
N
Cooling Speed Taps
Heating Speed Taps
(* indicates factory setting)
(* indicates factory setting)
82% CFM
7 ½ min
100% CFM
50% CFM
OFF
50% CFM
½ min
OFF
ADJUST BLOWER HEAT OFF DELAY
½ min
The integrated control module provides a selectable heat off delay
function. The heat off delay period may be set to 90, 120, 150,180
seconds using the DIP switches or jumper provided on the control
module. The delay is factory shipped at 150 seconds but may be
changed to suit the installation requirements and/or homeowner
preference. Refer to the following figures for switch positions and
corresponding delay times.
Cooling Demand
8
7
6
5
4
3
2
1
*
Ramping
Profile
Tap A
O
F
F
O
F
F
8
8
8
7
7
7
6
5
4
4
4
3
3
3
2
2
2
1
1
1
Ramping
Profile
Tap B
O
F
F
O
N
6
5
Heat Off
3
Ramping
Profile
Tap C
Delay
90 Seconds
ON
ON
2
1
O
N
O
F
F
6
5
Ramping
Profile
Tap D
3
Heat Off
Delay
120 Seconds
O
N
O
N
ON
OFF
2
1
Ramping Profiles
(*indicates factory setting)
*
3
Heat Off
Delay
150 Seconds
OFF
ON
2
1
6. Select the heating speed from the heating speed chart in
the Product Data Book applicable for your model*. The
adjust setting (already established by the cooling speed
selection) determines which set of speeds are available.
The selected speed must provide a temperature rise within
the rise range listed with the particular model.
Heat Off
Delay
180 Seconds
3
OFF
OFF
2
1
Heat Off Delay
(* indicates factory setting)
Heat Off Delay
27
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CIRCULATOR BLOWER FAN TIMING ADJUSTMENT
AUXILIARY LIMIT CONTROL
NOTE: Items in this section refer to the air circulator blower fan,
NOT to the induced draft blower. The induced draft blower timing
sequence is not adjustable. The circulator blower fan timing is
adjustable only on models with optional “heating fan OFF delay”
adjustment pins or switches (Figure 28). It is NOT adjustable in
any other circumstances.
As shipped, the circulator blower fan will remain on for 150
seconds after the gas valve closes. The circulator blower then
ramps down to “OFF” during the 30 seconds following the heat off
delay period. When a call for cooling occurs, the circulator fan
comes on and remains on for 45 seconds after the call for cooling
ends. During normal heating operation, the circulator fan will come
on approximately 34 seconds after the gas valve opens.
A uto reset limits are located on or near the blower. To access this
auxiliary limit, disconnect the electrical power and remove the
blower door. If the limit control opens, the air circulation blower
will run continuously. The diagnostic light will flash one time. The
auxiliary limit control is designed to prevent furnace operation in
case of main blower failure on horizontal and counterflow
installations. It may also open if the power supply is interrupted
while the furnace is firing. The auxiliary limit control is suitable for
both horizontal right and horizontal left installations. Regardless
of airflow direction, it does not need to be relocated.
PRIMARY LIMIT
The primary limit control guards against overheating resulting
from insufficient conditioned air passing over the heat exchanger.
If the primary limit control does not function during this test, the
cause must be determined and corrected. Function of this control
should be verified by gradually blocking the furnace return air after
the furnace has been operating (burners firing) for approximately
ten minutes. Check the control as follows:
90
SECOND
DELAY
120
SECOND
DELAY
180
SECOND
DELAY
150
SECOND
DELAY
1. Allow the furnace to operate with burners firing continuously
for approximately ten minutes.
2. Gradually block the return air to furnace. Remove airflow
blockage when limit control is activated and turns off
burners. Airflow blockage causes unit overheating and
will produce the following reactions:
Switches viewed in an upflow installation.
Adjustment Switches
• The gas valve to close and extinguish flame,
• The induced draft blower to be de-energized after a fifteen
second postpurge, and
XIII. OPERATIONAL CHECKS
• The circulator blower to remain energized continuously until
limit control resets.
WARNING
3. Remove the return air blockage to clear overheating
condition. After an acceptable temperature is reached
during the cool down period, the limit control will reset and
allow the furnace to resume normal operation.
TO AVOID PERSONAL INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL
COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. ELECTRICAL
COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS. TO PREVENT
PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO EXPLOSION
AND/OR FIRE, CONTACT A QUALIFIED SERVICE AGENT AT ONCE IF AN
ABNORMAL FLAME APPEARS.
WARNING
BURNER FLAME
TO PREVENT PREMATURE FAILURE OF HEAT EXCHANGER, PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH, DO NOT ADJUST THE LIMIT CONTROL (FACTORY
SET).
The burner flames should be inspected with the burner
compartment door installed. Flames should be stable, quiet,
soft, and blue (dust may cause orange tips but they must not be
yellow). Flames should extend directly outward from the burners
without curling, floating, or lifting off. Flames must not impinge on
the sides of the heat exchanger firing tubes.
XIII.SAFETYCIRCUITDESCRIPTION
IMPORTANT NOTE: This unit must not be used as a construction
heater during the finishing phases of construction of a new
structure. This type of use may result in premature failure due to
extremely low return air temperatures and exposure to corrosive
or very dirty atmospheres.
These checks establish that the primoary limit control is functioning
and will respond to a restriction in the return air, or a circulator
blower failure. If the primary limit control does not function during
this test, the cause must be determined and corrected.
Check the burner flames for:
1. Good adjustment
2. Stable, soft and blue
3. Not curling, floating, or lifting off.
GENERAL
A number of safety circuits are employed to ensure safe and proper
furnace operation. These circuits serve to control any potential
safety hazards and serve as inputs in the monitoring and diagnosis
of abnormal function. These circuits are continuously monitored
during furnace operation by the integrated control module.
Burner Flame
28
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3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution
not to recharge your body with static electricity; (i.e., do not
move or shuffle your feet, do not touch ungrounded objects,
etc.). If you come in contact with an ungrounded object,
repeat step 2 before touching control or wires.
4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a furnace. Return any old or new
controls to their containers before touching any ungrounded
object.
INTEGRATED CONTROL MODULE
The integrated control module is an electronic device which
controls all furnace operations. Responding to the thermostat,
the module initiates and controls normal furnace operation, and
monitors and addresses all safety circuits. If a potential safety
concern is detected, the module will take the necessary
precautions and provide diagnostic information through an LED.
PRIMARY LIMIT
The primary limit control is located on the partition panel and
monitors heat exchanger compartment temperatures. It is an
automatic reset, temperature sensor. The limit guards against
the overheating as a resulting of insufficient air passing over the
heat exchanger.
DIAGNOSTIC CHART
Refer to the troubleshooting chart on the following pages for
assistance in determining the source of unit operational problems.
The red diagnostic LED blinks to assist in troubleshooting the
unit. The number of blinks refer to a specific code.
AUXILIARY LIMIT
The auxiliary limit control is located either on or near the circulator
blower and monitors heat exchanger compartment temperatures.
The control is a temperature sensor. It guards against overheating
resulting from insufficient air passing over the heat exchanger.
RESETTING FROM LOCKOUT
Furnace lockout results when a furnace is unable to achieve
ignition after three attempts, or when it has lost flame five times
during a single call for heat. It is characterized by a non-functioning
furnace and a one flash diagnostic LED code from the red LED. If
the furnace is in “lockout”, it will (or can be) reset in any of the
following ways.
ROLLOUT LIMITS
The rollout limit controls are mounted on the burner/manifold
assembly and monitor the burner flame. They are manual-reset,
temperature sensors. This limit guards against burner flames
not being properly drawn into the heat exchanger.
1. Automatic reset. The integrated control module will
automatically reset itself and attempt to resume normal
operations following a one hour lockout period.
PRESSURE SWITCHES
2. Manual power interruption. Interrupt 115 volt power to the
furnace for 1 - 20 seconds.
3. Manual thermostat cycle. Lower the thermostat so that
there is no longer a call for heat for 1 -20 seconds then
reset to previous setting.
The pressure switches are normally-open, negative air pressure-
activated switches. They monitor the airflow (combustion air and
flue products) through the heat exchanger via pressure taps located
on the induced draft blower. These switches guard against
insufficient airflow (combustion air and flue products) through the
heat exchanger.
NOTE: If the condition which originally caused the lockout still
exists, the control will return to lockout. Refer to the Diagnostic
Chart for aid in determining the cause.
FLAME SENSOR
The flame sensor is a probe mounted to the burner/manifold
assembly which uses the principle of flame rectification to
determine the presence or absence of flame.
XVI. MAINTENANCE
WARNING
XV. TROUBLESHOOTING
ELECTROSTATIC DISCHARGE (ESD)PRECAUTIONS
TO AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DISCONNECT ELECTRICAL
POWER BEFORE PERFORMING ANY MAINTENANCE. IF YOU MUST HANDLE THE
IGNITER, HANDLE WITH CARE. TOUCHING THE IGNITER ELEMENT WITH BARE
FINGERS, ROUGH HANDLING, OR VIBRATION COULD DAMAGE THE IGNITER
RESULTING IN PREMATURE FAILURE. ONLY A QUALIFIED SERVICER SHOULD
EVER HANDLE THE IGNITER.
NOTE: Discharge body’s static electricity before touching unit. An
electrostatic discharge can adversely affect electrical components.
Use the following precautions during furnace installation and
servicing to protect the integrated control module from damage.
By putting the furnace, the control, and the person at the same
electrostatic potential, these steps will help avoid exposing the
integrated control module to electrostatic discharge. This
procedure is applicable to both installed and uninstalled
(ungrounded) furnaces.
ANNUAL INSPECTION
The furnace should be inspected by a qualified installer, or service
agency at least once per year. This check should be performed at
the beginning of the heating season. This will ensure that all
furnace components are in proper working order and that the
heating system functions appropriately. Pay particular attention to
the following items. Repair or service as necessary.
1. Disconnect all power to the furnace. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body’s electrostatic
charge to ground.
2. Firmly touch a clean, unpainted, metal surface of the
furnace away from the control. Any tools held in a person’s
hand during grounding will be discharged.
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• Flue pipe system. Check for blockage and/or leakage.
Check the outside termination and the connections at and
internal to the furnace.
Inspect filter. If your dirty filter is the disposable type, replace dirty
with the same type and size filter. If your dirty filter is a permanent
metal filter, clean as follows:
• Heat exchanger. Check for corrosion and/or buildup within
the heat exchanger passageways.
• Burners. Check for proper ignition, burner flame, and flame
sense.
• Wiring. Check electrical connections for tightness and/or
corrosion. Check wires for damage.
• Filters.
• Wash, rinse, and dry the permanent filters. Both sides
should then be sprayed with a filter adhesive as is
recommended on the adhesive container. Many hardware
stores stock spray adhesives for use with permanent filters.
• If badly torn or uncleanable, these filters must be replaced
by equal size permanent, high velocity filters. Throwaway
filters must not be used as replacement for permanent
filters. Under normal use, permanent filters should last for
several years.
FILTERS
INDUCED DRAFT AND CIRCULATOR BLOWER MOTORS
WARNING
The bearings in the induced draft blower and circulator blower
motors are permanently lubricated by the manufacturer. No further
lubrication is required. Check motor windings for accumulation
of dust which may cause overheating. Clean as necessary.
TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DISCONNECT
ELECTRICAL POWER BEFORE REMOVING FILTERS OR PERFORMING ANY OTHER
MAINTENANCE. NEVER OPERATE FURNACE WITHOUT A FILTER INSTALLED
BECAUSE DUST AND LINT WILL BUILD UP ON INTERNAL PARTS RESULTING IN
LOSS OF EFFICIENCY, EQUIPMENT DAMAGE AND POSSIBLE FIRE.
FLAME SENSOR (QUALIFIED SERVICER ONLY)
Under some conditions, the fuel or air supply can create a nearly
invisible coating on the flame sensor. This coating acts as an
insulator causing a drop in the flame sense signal. If the flame
sense signal drops too low the furnace will not sense flame and
will lock out. The flame sensor should be carefully cleaned by a
qualified servicer using emery cloth or steel wool. Following
cleaning, the flame sense signal should be as indicated in the
Specifications Sheet.
A return air filter is not supplied with this furnace; however, there
must be a means of filtering all of the return air. The installer will
supply filter(s) at the time of installation.
FILTER MAINTENANCE
Improper filter maintenance is the most common cause of
inadequate heating or cooling performance. Filters should be
cleaned (permanent) or replaced (disposable) every two months
or as required. When replacing a filter, it must be replaced with a
filter of the same type and size.
IGNITER (QUALIFIED SERVICER ONLY)
If the igniter and the surrounding air are at about 70°F and the
igniter wires are not connected to any other electrical components,
the resistance of the igniter should not exceed 75 ohms. If it does,
the igniter should be replaced.
Become familiar with filter location and procedures for removal,
cleaning and replacing them. If help is needed, contact the installer
of the furnace or a qualified servicer.
BURNERS
FILTER REMOVAL
Depending on the installation, differing filter arrangements can
be applied. Filters can be installed in either the central return
register or a side panel external filter rack (upflow only). A media
air filter or electronic air cleaner can be used as an alternate filter.
Follow the filter sizes given in the Recommended Minimum Filter
size table to ensure proper unit performance.
WARNING
TO PREVENT PERSONAL INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL
COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. ELECTRICAL
COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS. CONTACT A
QUALIFIED SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME APPEARANCE
SHOULD DEVELOP.
To remove filters from an external filter rack in an upright upflow
installation, follow the directions provided with external filter rack
kit. To remove internal filters see Internal Filter Removal section.
Internal filters are an accessory item and are not included with
your furnace. For further details, see your distributor.
Periodically during the heating season make a visual check of the
burner flames. Turn the furnace on at the thermostat. Wait a few
minutes, since any dislodged dust will alter the normal flame
appearance. Flames should be stable, quiet, soft and blue with
slightly orange tips. They should not be yellow. They should
extend directly outward from the burner ports without curling
downward, floating or lifting off the ports.
UPRIGHT FILTER REMOVAL
To remove filters from an external filter rack in an upright upflow
installation, follow the directions provided with external filter rack
kit.
Clean, wash and dry a permanent filter. When using a metal filter,
both sides should be sprayed with a dust adhesive as
recommended on adhesive container. Spray adhesives for use
with permanent metal filters can be found at some hardware
stores. BE SURE AIRFLOW DIRECTION ARROW POINTS
TOWARDS THE BLOWER.
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CLEANING (QUALIFIED SERVICER ONLY)
XVIII. REPAIR AND REPLACEMENT PARTS
1. Shut off electric power and gas supply to the furnace.
2. Remove screws securing manifold to burner bracket.
Slightly pull manifold out and away from burner bracket.
Burners will drop. Re-secure manifold to burner bracket.
3. Tilt burners to slotted side of burner bracket. Rotate burners
clockwise to remove.
4. Use bottle brush to clean burner insert and inside of burner.
5. Replace burner (opposite of removal). Ensure burners
are fully seated on burner bracket tabs and are properly
aligned.
•
•
•
When ordering any of the listed functional parts, be sure to
provide the furnace model, manufacturing, and serial
numbers with the order.
Although only functional parts are shown in the parts list,
all sheet metal parts, doors, etc. may be ordered by
description.
Parts are available from your distributor.
Functional Parts List-
Two Stage Gas Valve
Natural Gas Orifice
Propane Gas Orifice
Burner
Hot Surface Igniter
Flame Sensor
Blower/Box Gasket
Rollout Limit Switch
Auxiliary Limit Switch
Heat Exchanger
Door Switch
6. Turn on electric power and gas supply to the furnace.
7. Check furnace for proper operation. Refer to “Operational
Checks” section to verify burner flame characteristics.
XVII. BEFORE LEAVING AN INSTALLATION
Transformer
•
•
•
Cycle the furnace with the thermostat at least three times.
Verify cooling and fan only operation.
Gas Manifold
Ignition Control
Blower Wheel
Blower Housing
Blower Cutoff
Blower Motor
Motor Mount Bracket
Capacitor
Blower Mounting Bracket
Pressure Switch
Pressure Switch Hose
Induced Draft Blower
Collector Box
Review the Owner’s Manual with the homeowner and
discuss proper furnace operation and maintenance.
Leave literature packet near furnace.
31
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Troubleshooting Chart
Associated
Symptoms of Abnormal
Operation
Fault Description(s)
Possible Causes
Corrective Action
Cautions and Notes
LED Code2
NONE
• Furnace fails to operate.
• No 115 volt power
to furnace, or no 24
volt power to
integrated control
module.
• Manual disconnect switch
OFF, door switch open, or
24 volt wires improperly
connected or loose.
• Assure 115 and 24 volt
power to furnace
integrated control
module.
• Turn power OFF
prior to repair.
• Integrated control
module diagnostic LED
provides no signal.
• Replace integrated
control module
fuse with 3A
• Check integrated control
module fuse (3A).
Replace if necessary.
• Blown fuse or circuit
breaker.
• Blown fuse or
circuit breaker.
automotive fuse.
• Intergrated contol module
has an internal fault
• Read precautions
in “Electrostatic
Discharge” section
of manual.
• Check for possible
shorts in 115 and 24 volt
circuits. Repair as
necessary.
• Intergrated contol
module has an
internal fault
• Replace bad intergrated
control module.
• Normal operation.
• Normal operation.
• LED is steady ON.
• Normal operation.
• None.
ON
CONTINUOUS
ON
• Turn power OFF
prior to repair.
• Furnace fails to operate.
• Furnace lockout due • Failure to establish flame. • Locate and correct gas
to an excessive
number of ignition
“retries” (3 total)1.
Cause may be no gas to
burners, bad igniter or
igniter alignment,
interruption.
• Replace or realign
igniter.
1
• Integrated control
module diagnostic LED
is flashing ONE (1)
flash.
• Igniter is fragile,
handle with care.
1 FLASH
improper orifices, or
coated/oxidized or
improperly connected
flame sensor.
• Check flame sense
signal. Sand sensor if
coated and/or oxidized.
• Check flue piping for
blockage, proper length,
elbows, and termination.
• Verify proper induced
draft blower
performance.
• Check circulator blower
speed and performance.
Correct speed or replace
blower if necessary.
• Auxiliary limit open
• Sand flame sensor
with emery cloth.
• See “Combustion
and Ventilation Air
Requirements” and
“Category I
Venting (Vertical
Venting)” section
for details.
• Loss of flame after
establishment. Cause
may be interrupted gas
supply, lazy burner flames
(improper gas pressure or
restriction in flue or
improper induced draft
blower performance.
• See Product Data
Bulletin for
allowable rise
range and proper
circulator speed.
• Insufficient conditioned
air over the heat
exchanger. Blocked
filters, restrictive
ductwork, improper
circulator blower speed,
or failed circulator blower.
• Furnace fails to operate.
• Low stage pressure • Induced draft blower
• Replace induced draft
blower pressure
switch.
• Turn power OFF
prior to repair.
switch circuit is
closed.
pressure switch contacts
sticking.
2
• Integrated control
module diagnostic LED
is flashing TWO (2)
flashes.
• Replace pressure
switch with proper
replacement part.
• Induced draft blower • Shorts in pressure switch
• Repair short.
2 FLASHES
is not operating.
circuit.
• Induced draft blower
runs continuously with
no further furnace
operation.
• Pressure switch
circuit not closed.
• Pressure switch hose
blocked, pinched or
connected improperly.
• Inspect pressure
switch hose. Repair, if
necessary,
• Turn power OFF
prior to repair.
3
• See “Combustion
and Ventilation Air
Requirements”
and “Category I
Venting (Vertical
Venting)” section
for details.
• Induced draft blower
is operating.
• Inspect flue for
blockage, proper
length, elbows, and
termination.
• Blocked flue or weak
induced draft blower.
3 FLASHES
• Integrated control
module diagnostic LED
is flashing THREE (3)
flashes.
• Incorrect pressure switch
setpoint or malfunctioning
switch contacts.
• Correct pressure
switch setpoint or
contact motion.
• Replace pressure
switch with proper
replacement part.
• Loose or improperly
connected wiring.
• Tighten or correct
wiring connection.
1Integrated control module will automatically attempt to reset from lockout after one hour.
32
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Troubleshooting Chart
Associated
LED Code2
Symptoms of Abnormal
Operation
Fault Description(s)
Possible Causes
Corrective Action
Cautions and Notes
• Circulator blower runs
continuously. No furnace
operation.
• Primary limit
circuit is open.
• Check filters and
ductwork for blockage.
Clean filters or remove
obstruction.
• Check circulator blower
speed and performance.
Correct speed or replace
blower if necessary.
• Turn power OFF
prior to repair.
• Insufficient conditioned air
over the heat exchanger.
Blocked filters, restrictive
ductwork, improper
circulator blower speed,
or failed circulator blower.
4
• See Product Data
Bulletin for
allowable rise
range and proper
circulator speed.
• Integrated control module
diagnostic LED is flashing
FOUR (4) flashes.
4 FLASHES
• Flame rollout.
See “Vent/Flue
Pipe” section for
piping details.
• Misaligned burners,
blocked flue and/or air
inlet pipe, or failed
• Check burners for proper
alignment.
• Check flue and air inlet
piping for blockage,
proper length, elbows,
and termination. Correct
as necessary.
induced draft blower.
• Replace pressure
switch with proper
replacement part.
• Loose or improperly
connected wiring.
• Check induced draft
blower for proper
performance. Replace, if
necessary.
• Tighten or correct wiring
connection.
• Correct short at flame
sensor or in flame
sensor wiring.
• Check for lingering
flame
• Integrated control module
diagnostic LED is flashing
FIVE (5) times.
• Flame sensed with • Short to ground in flame
• Turn power OFF
prior to repair.
5
no call for heat.
sense circuit.
• Lingering burner flame.
• Slow closing gas valve
5 FLASHES
• Induced draft blower and
circulator blower run
continuously. No furnace
operation.
• Verify proper operation
of gas valve
• Furnace fails to operate.
• Polarity of 115
volt power is
reversed.
• Turn power OFF
prior to repair.
• Polarity of 115 volt AC
power to furnace or
integrated control module
is reversed.
• Review wiring diagram to
correct polarity.
C
• Integrated control module
diagnostic LED is flashing
continuously.
• Verify proper ground.
Correct if necessary.
CONTINUOUS
FLASHING
• Poor unit ground.
• Check and correct wiring.
• Turn power OFF
prior to repair.
• Sand flame sensor is
coated/oxidized.
• Flame sense
microamp signal is
low.
• Flame sensor is coated/
oxidized.
• Normal furnace
operation.
7
• Sand flame
sensor with
emery clot.
• Flame sensor incorrectly
positioned in burner
flame.
• Inspect for proper sensor
alignment.
• Integrated control
module diagnostic LED
is flashing SEVEN (7)
flashes.
7 FLASHES
• Check inlet air piping for
blockage, proper length,
elbows, and termination.
• See “Vent/Flue
Pipe” section for
piping details.
• Lazy burner flame due to
improper gas pressure or
combustion air.
• Compare current gas
pressure to rating plate
info. Adjust as needed.
• See rating plate
for proper gas
pressure.
• Improperly
connected igniter
• Check and correct wiring
from integrated control
module to igniter
• Furnace not operating.
• Turn power OFF
prior to repair.
• Problem with
igniter circuit.
8
• Integrated control module
diagnostic LED is flashing
EIGHT (8) flashes.
• Bad igniter
• Replace igniter
with proper
silicon nitride
8 FLASHES
• Replace bad igniter
• Poor unit ground
• Check and correct unit
ground wiring
replacement part.
• Inspect pressure switch
hose. Repair, if necessary.
• Furnace operating on
low stage gas with high
stage induced draft blower
• Pressure switch hose
blocked, pinched or
connected improperly.
• High stage
• Turn power OFF
prior to repair.
pressure switch
circuit does not
close in response
to high stage
induced draft
blower operation.
9
• Inspect flue and/or inlet
air piping for blockage,
proper length, elbows,
and termination. Check
drain system. Correct as
necessary.
• Replace pressure
switch with
proper
• Blocked flue and/or inlet air
pipe, blocked drain system,
or weak induced draft
blower.
• High stage circulator
blower (temperature, of
conditioned air, lower than
typical).
9 FLASHES
replacement part.
• Incorrect pressure switch
setpoint or malfunctioning
switch contacts.
• Integrated control module
diagnostic LED is flashing
NINE (9) flashes.
• Correct pressure switch
setpoint or contact
motion.
• Loose or improperly
connected wiring.
• Tighten or correct wiring
connection.
33
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Wiring Diagram - AMV8
TO 11 5VAC/
OVERCURRENT PROTECTI ON DEVI CE
GND
1
Ø
/ 6 0 HZ POWER SUPPL Y WI TH
WH 1 6 WI RE HARNESS
L
N
WARNI NG:
24 VAC. HUM.
DI SCONNECT POWER
BEFORE SERVI CI NG.
WI RI NG TO UNI T
MUST BE PROPERLY
POLARI ZED AND
GROUNDED.
2 4
V
T HERMOSTAT
CONNECTI ONS
16 PI
PL UG
N
DI SCONNECT
RD
1
0
1
1
1
2
BR
7
8
9
BU
4
1
5
2
6
3
PR
DOOR
SWI TCH
J UNCTI ON BOX
1
2
3
4
5
I
NDUCTOR COI
L
70 k BTU, 90 k BTU,
11 5 k BTU MODELS
ONLY
I
NDOOR
AI
R
DI AGNOSTI
L ED
C
CI RCUL ATOR
BL WR
CI RCULATOR
BL OWER
GND
HOT
NE UT RAL
LI NE-
H
L I
N
N
E-
N
EAC-
H
EAC-
EL ECTRONI
C
AI R CL EANER
BK
WH
I
ND HI
115
VAC
BK
I
ND-
N
I
D
BK
BL WR
24
VAC
I
ND LO
I
NDUCTOR COI
L
RD
ON SOME MODELS
HUM-
N
N
HUM-
H
BU
HUMI DI FI ER
WH
I
GN-
H
I
GN-
AUXI LI ARY
L I MI CONTROL S
T
HOT SURFACE
GNI TER
I
GND
FP
(
3 )
FL AME SENSOR
11 5 VAC
BL OWER COMPARTMENT
BURNER COMPARTMENT
XFMR-
N
XFMR-
H
A
40 VA
TRANSFORMER
TH
(
5)
R
24 VAC
FUSE
3
AUTO RESET
DOOR SWI TCH
PRI MARY LI MI T
CONTROL
HI F I RE
PRESSURE SWI TCH
W1
C
HL O
HL 1
(
1 1 )
YL
NO
YL O
MANUAL RESET ROLLOUT
LI MI T CONTROL( S)
GND
(
6 )
24
VAC.
HUM.
3
2
1
W2
C
RD
WH
BR
NO
TO
MI CRO
Y
24 V HUM.
PS1
(
1 2)
C
LOW FI RE
PRESSURE SWI TCH
I
NDUCED
DRAFT
BL OWER
G
NO
LOW FI RE
PRESSURE
SWI TCH
OR
AUXI LI ARY LI MI T
CONTROLS
BR
MVL( 7 )
C
YL
PM
HI
PRI MARY
LI MI
T
CONTROL
MVH
PS2
(
(
1 )
2 )
BU
NO
C
RD
PR
HI GH FI RE
PRESSURE SWI TCH
GND
MVC
GND
(
(
8 )
1 0)
C
GAS
VALVE
GND
TR
(
9)
PM
1
C
2
HI
PR
I
NTEGRATED CONTROL MODULE
3
ROLL OUT LI MI T S CONTROL
2
ST AGE
J UNCTI ON
BOX
GAS VAL VE
W
L I NE-
GND
N
H
BK
L I NE
FL AME
SENSOR
HOT
SURF ACE
GNI TOR
TO 1 15 VAC/ 1/ 6 0 HZ
POWER SUPPL Y WI TH
OVERCURRENT PROTECTI ON
DEVI CE
I
0
1
2
3
4
6
7
8
9
C
STEADY ON
=
=
=
=
=
=
=
=
=
NORMAL OPERATI ON
LOW VOLTAGE ( 2 4 V)
LOW VOL TAGE FI ELD
HI VOL TAGE ( 11 5 V)
EQUI PMENT GND
FI ELD GND
1
2
3
4
5
7
8
9
FLASH
SYSTEM LOCKOUT ( RETRI ES/ RECYCLES EXC
EEDED)
WI TCH STUCK CL OSED
L OW FI RE PRESSURE SWI TCH
FLASHES
FL ASHES
FL ASHES
FLASHES
FLASHES
FLASHES
FLASHES
L OW FI RE PRESSURE
S
ST UCK OPEN
PROTECTI VE DEVI CE OPEN
FLAME SENSED
FI EL D SPL I CE
SWI TCH ( TEMP. )
I GNI TER
HI VOL T
AGE F I EL D
THERMAL
WI TH GAS VALVE DE- ENERGI ZED
L OW FLAME SENSE SI GNAL
CHECK
GNI TER OR MPROPER
HI GH FI RE PR
J UNCTI ON
TERMI NAL
NTERNAL TO
I
I
G
ROUNDI NG
I
SWI TCH ( PRESS.
)
I NTEGRATED CONTROL
ESSURE SWI TCH STUCK OPEN
OVERCURRENT
PROT. DEVI CE
PL UG CONNECTI ON
CONTI NUOUS FL ASHES
=
1 1 5 VOL
T
AC POWER REVERSED
PK PI NK
BR BROWN
WH WHI TE
BU BL UE
GY GRAY
RD RED
COL OR CODES:
YL YELL OW
OR ORANGE
PR PURPLE
NOTES:
1 . SET HEAT ANT I CI PATOR ON
ROOM THERMOSTAT AT 0 . 7 AMPS.
2 . MANUFACTURER'
S
SPECI FI ED REPL AC
EMENT PARTS MUST BE USED WHEN SERVI CI NG.
3 . I F ANY OF THE ORI GI NAL WI RE AS SU
PPL I ED WI TH T HE FURNACE MUST BE
GN GREEN
BK BL ACK
REPL ACED, I T MUST BE REPLACED WI
RATI NG OF AT L EAST 1 05
T
H
WI RI NG MATERI AL HAVI NG
A
TEMPERATURE
° C. USE COPPER CONDUCTORS ONL Y.
4 . UNI T MUST BE PERMA
NENT LY GROUNDED AND CONF ORM TO N. E. C.
A
ND LOCAL CODES.
B1 4 9 3 3 2 5 7 REV. 0 0
34
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Wiring Diagram - ADV8
BK 16 WI RE HARNESS
TO 115VAC/
1
Ø / 60 HZ POWER SUPPLY WI TH
15
12
9
14
11
8
13
10
7
13
10
7
14
11
8
15
12
9
OVERCURRENT PROTECTI ON DEVI CE
L
N
BR
WARNI NG:
24 VAC. HUM.
DI SCONNECT POWER
BEFORE SERVI CI NG.
WI RI NG TO UNI T
SEE
6
5
4
4
5
6
NOT E
5
3
2
1
1
2
3
BK
MUST BE PROPERLY
POLARI ZED AND
GROUNDED.
BK
DI SCONNECT
RD
BR
DOOR SWI TCH
AUXI LI ARY
10
7
11
8
12
9
LI MI T CONTROL
BL
4
5
6
PU
DOOR
SWI TCH
GND
1
2
3
J UNCTI ON BOX
I NDUCTOR COI L
90kBTU, 115 KBTU
MODELS ONLY
CI RCULATOR
BLOWER
I NDOOR
AI R
CI RCULATOR
BLWR
LI NE- H
EAC- H
LI NE- N
EAC- N
BK
ELECTRONI C
AI R CLEANER
WH
CONTROL
PANEL
I ND HI
115
VAC
I ND- N
I D
24
BLWR
J UNCTI ON BOX
GND
VAC
WH
LI NE- N
I ND LO
HUMI DI FI ER
RD
SEE
NOTE
HUM- H
I GN- H
HUM- N
I GN- N
BL
5
LI NE
H
TO 115 VAC/ 1/ 60HZ
POWER SUPPLY WI TH
HOT SURFACE
I GNI TER
OVERCURRENT PROTECTI ON
DEVI CE
FP ( 3)
I NDUCTOR COI L
ON S OME MODEL S
FLAME SENSOR
BLOWER COMPARTMENT
BURNER COMPARTMENT
XFMR- N
XFMR- H
115 VAC
40 VA
TRANSFORMER
TH ( 5)
R
24 VAC
FUSE
3
A
AUTO RESET
PRI MARY LI MI T
CONTROL
HI FI RE
PRESSURE SWI TCH
W1
HLO ( 11 )
HL1 ( 6)
YL
YLO
MANUAL RESET ROLLOUT
LI MI T CONTROL
24
VAC.
HUM.
W2
RD
WH
BR
TO
MI CRO
Y
24V HUM.
PS1 ( 12)
C
I NDUCED
DRAFT
LOW FI RE
PRESSURE SWI TCH
G
NO
LOW FI RE
PRESSURE
SWI TCH
OR
BLOWER
AUXI LI ARY LI MI T
CONTROL
BR
YL
C
MVL ( 7 )
PM
HI
PRI MARY
BL
LI MI T CONTROL
MVH ( 1 )
PS2 ( 2)
MVC ( 8 )
NO
C
RD
HI GH FI RE
PRESSURE SWI TCH
C
GND ( 4)
TR ( 9)
GAS
VALVE
PU
I NTEGRATED CONTROL MODULE
++ USE NEC CLASS
WI RE
-
2
ROLL OUT LI MI TS CONTROL
2
STAGE
GAS VALVE
FLAME
SENSOR
HOT
SURFACE
I GNI TOR
0
1
2
3
4
6
7
8
9
C
STEADY ON = NORMAL OPERATI ON
FACTORY WI RI NG
LI NE VOLTAGE
LOW VOLTAGE
FI ELD WI RI NG
HI GH VOLTAGE
LOW VOLTAGE
1
2
3
4
5
7
8
9
FLASH
=
=
=
=
=
=
=
=
SYSTEMLOCKOUT (RETRIES/RECYCLES EXCEEDED)
SWI TCH ( TEMP. )
I GNI TER
FLASHES
FLASHES
FLASHES
FLASHES
FLASHES
FLASHES
FLASHES
LOW FI RE PRESSURE SWI TCH STU
CK CLOSED
LOW FI RE PRESSURE SWI TCH ST
UCK OPEN
THERMAL PROTECTI VE DEVI C
E
OPEN
SWI TCH ( PRESS. )
FLAME SENSED WI TH GAS
VALVE DE- ENERGI ZED
OVERCURRENT
PROT. DEVI CE
LOW FLAME SENSE SI
CHECK I GNI TER OR
GNAL
I MPROPER GROUNDI NG
HI GH FI RE PRE
SSURE SWI TCH STUCK OPEN
CONTI NUOUS FLASHES
=
115 VOLT AC POWER REVERSE
D
NOTES:
1. SET HEAT ANTI CI PATOR ON ROOM THERM
PK PI NK
BR BROWN
WH WHI TE
BL BLUE
GY GRAY
RD RED
COLOR CODES:
YL YELLOW
OR ORANGE
PU PURPLE
GR GREEN
OSTAT AT 0. 7 AMPS.
2. MANUFACTURER' S SPECI FI ED REPLAC
3. I F ANY OF THE ORI GI NAL WI RE AS
EMENT PARTS MUST BE USED WHEN SERVI CI NG.
SUPPLI ED WI TH THE FURNACE MUST BE
REPLACED, I T MUST BE REPLACED WI T
H
WI RI NG MATERI AL HAVI NG A TEMPERATURE
° C. USE COPPER CONDUCTORS ONLY.
RATI NG OF AT LEAST 105
BK BLACK
4. UNI T MUST BE PERMANENTLY GROUN
5. USE COPPER CONDUCTORS ONLY
DED AND CONFORM TO N. E. C. AND LOCAL CODES.
0140F00081P REV. 0
35
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NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN
ARE SUBJECT TO CHANGE WITHOUT NOTICE
Quality Makes the Difference!
All of our systems are designed and manufactured with the same high quality standards regardless of size or
efficiency. We have designed these units to significantly reduce the most frequent causes of product failure.
They are simple to service and forgiving to operate. We use quality materials and components. Finally, every
unit is run tested before it leaves the factory. That’s why we know. . . There’s No Better Quality.
•
•
•
•
•
•
Products
Warranties
Customer Services
Parts
Contractor Programs and Training
Financing Options
Goodman Company, L.P.
2550 North Loop West, Suite 400, Houston, TX 77092
© 2004-2006 Goodman Company, L.P.
36
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