INSTALLATION INSTRUCTIONS
FOR SINGLE PACKAGE
GAS-ELECTRIC HEATING & COOLING UNITS
*PG 15 SEER “M” SERIES
Affix this manual and Users Information Manual adjacent to the unit.
This Forced Air Central Unit Design Complies With
Requirements Embodied in The American National
Standard / National Standard of Canada Shown Below.
ANSI Z21.47•CSA-2.3 Central Furnaces
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
Prior to installation, thoroughly familiarize yourself with this Installation Manual. Observe all safety warnings. During
installation or repair, caution is to be observed.
It is your responsibility to install the product safely and to educate the customer on its safe use.
These installation instructions cover the outdoor
*NOTE: Please contact your distributor or
installation of single package gas electric heating and
our website for the applicable
cooling units. See the Specification Sheet applicable to
Specification Sheet referred to in this
your model* for information regarding accessories.
manual.
Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
© 2006 - 2009, 2012 Goodman Manufacturing Company, L.P.
IO-324H
11/12
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INDEX
MAINTENANCE .................................................................................................................................................................. 17
FILTER REPLACEMENT OR CLEANING.................................................................................................................... 17
CABINET FINISH MAINTENANCE ........................................................................................................................... 17
CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)............................................................................................. 17
CONDENSER, EVAPORATOR, AND INDUCED DRAFT MOTORS ..................................................................................... 17
FLAME SENSOR (QUALIFIED SERVICER ONLY) ...................................................................................................... 17
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ..................................................................................................... 17
CLEANING FLUE PASSAGES (QUALIFIED SERVICER ONLY) ...................................................................................... 17
MAIN BURNER FLAME (QUALIFIED SERVICER ONLY).............................................................................................. 18
CLEANING BURNERS ......................................................................................................................................... 18
ACCESSORIES AND FUNCTIONAL PARTS ...................................................................................................................... 18
SHEET METAL ACCESSORIES .............................................................................................................................. 18
FUNCTIONAL PARTS .......................................................................................................................................... 18
GENERAL INFORMATION ..................................................................................................................................... 18
APPENDIX ......................................................................................................................................................................... 19
IGNITION CONTROL DIAGNOSTIC INDICATOR CHART .................................................................................................. 21
HEATING TIMING CHART .................................................................................................................................... 21
COOLING TIMING CHART ................................................................................................................................... 21
UNIT DIMENSIONS ............................................................................................................................................ 22
*PG15*****41A* WIRING DIAGRAM .................................................................................................................. 23
*PG15*****41B* WIRING DIAGRAM ................................................................................................................. 23
MINIMUM CLEARANCES ..................................................................................................................................... 27
RECOMMENDED FILTER SIZES ............................................................................................................................ 27
BLOWER PERFORMANCE DATA ............................................................................................................................ 28
3
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REPLACEMENT PARTS
ORDERING PARTS
When reporting shortages or damages, or ordering repair
parts, give the complete unit model and serial numbers as
stamped on the unit’s nameplate.
Replacement parts for this appliance are available through
your contractor or local distributor. For the location of your
nearest distributor, consult the white business pages, the
yellow page section of the local telephone book or contact:
CONSUMERAFFAIRS
GOODMAN MANUFACTURING COMPANY, L.P.
7401 SECURITY WAY
HOUSTON, TEXAS 77040
(713) 254-4729
SAFETY INSTRUCTIONS
TO THE INSTALLER
Before installing this unit, please read this manual to
familiarize yourself on the specific items which must be
adhered to, including maximum external static pressure to
unit, air temperature rise, minimum or maximum CFM and
motor speed connections.
TO THE OWNER
A warranty certificate is provided with the unit. Read the
warranty carefully and note what is covered. Keep the warranty
certificate in a safe place so you can find it when necessary.
Keep this literature in a safe place for future reference.
4
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•
To avoid possible illness or death of the building occupants,
do NOT locate outside air intake device (economizer,
manual fresh air intake, motorized fresh air intake) too
close to an exhaust outlet, gas vent termination, or
plumbing vent outlet. For specific distances required,
consult local codes.
•
•
Allow minimum clearances from the enclosure for fire
protection, proper operation, and service access (see
appendix). These clearances must be permanently
maintained.
The combustion air inlet and flue outlet hoods on the unit
must never be obstructed. If used, do not allow the
economizer/manual fresh air damper/ motorized fresh air
damper to become blocked by snow or debris. In some
climates or locations, it may be necessary to elevate the
unit to avoid these problems.
CARBON MONOXIDE POISONING HAZARD
Special Warning for Installation of Furnaces 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.
•
When the unit is heating, the temperature of the return air
entering the unit must be between 50° F and 100° F.
GROUND LEVEL INSTALLATIONS ONLY:
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.
•
When the unit is installed on the ground adjacent to the
building, a level concrete (or equal) base is recommended.
Prepare a base that is 3” larger than the package unit
footprint and a minimum of 3” thick.
CO can cause serious illness including permanent brain damage or death.
•
The base should also be located where no runoff of water
from higher ground can collect in the unit.
B10259-216
UNIT LOCATION
IMPORTANT NOTE: Remove wood shipping rails prior to instal-
lation of the unit.
ALL INSTALLATIONS:
•
For proper flame pattern within the heat exchanger and
proper condensate drainage, the unit must be mounted
level.
•
The flue outlet hood must be at least 12 inches from any
opening through which flue gases could enter a building,
and at least three feet above any forced air inlet located
within ten feet. The economizer/manual fresh air intake/
motorized fresh air intake and combustion air inlet
mounted on the unit are not affected by this restriction.
OutsideSlabInstallation
ROOFTOP INSTALLATIONS ONLY:
•
To avoid possible corrosion of the heat exchanger, do
not locate the unit in an area where the outdoor air (i.e.
combustion air for the unit) will be frequently
contaminated by compounds containing chlorine or
fluorine. Common sources of such compounds include
swimming pool chemicals and chlorine bleaches, paint
stripper, 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.
NOTE: To ensure proper condensate drainage, unit must be
installed in a level position.
•
To avoid possible property damage or personal injury, the
roof must have sufficient structural strength to carry the
weight of the unit(s) and snow or water loads as required
by local codes. Consult a structural engineer to determine
the weight capabilities of the roof.
5
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GENERAL INFORMATION
This unit is approved for outdoor installation ONLY. Rated
performance is achieved after 72 hours of operation. Rated
performance is delivered at the specified airflow. See outdoor
unit specification sheet for split system models or product
specification sheet for packaged and light commercial
models. Specification sheets can be found at
either website, please select the residential or commercial
products menu and then select the submenu for the type of
product to be installed, such as air conditioners or heat
pumps, to access a list of product pages that each contain
links to that model’s specification sheet.
To assure that your unit operates safely and efficiently, it must
be installed, operated, and maintained in accordance with
these installation and operating instructions, all local building
codes and ordinances, or in their absence, with the latest
edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1
and National Standard of Canada CAN/CSA B149 Installation
Codes.
RooftopInstallation
•
•
The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
The heating and cooling capacities of the unit should be
greater than or equal to the design heating and cooling loads
of the area to be conditioned. The loads should be calculated
by an approved method or in accordance with A.S.H.R.A.E.
Guide or Manual J - Load Calculations published by the Air
Conditioning Contractors of America.
ROOF CURB INSTALLATIONS ONLY:
•
Sufficient structural support must be determined prior to
locating and mounting the curb and package unit.
•
Ductwork must be constructed using industry guidelines.
The duct work must be placed into the roof curb before
mounting the package unit.
Obtain from:
American National Standards Institute
1430 Broadway
•
Curb insulation, cant strips, flashing and general roofing
material are furnished by the contractor.
New York, NY 10018
TRANSPORTATION DAMAGE
Check the carton upon arrival for external damage. If damage
is found, a request for inspection by carrier agent should be
made in writing immediately.
Carefully inspect the unit for damage including damage to
the cabinetry. Any bolts or screws which may have loosened
in transit must be re-tightened. In the event of damage, the
receiver should:
1. Make notation on delivery receipt of any visible damage to
shipment or container.
2. Notify carrier promptly and request an inspection.
3. In case of concealed damage, carrier should be notified
as soon as possible-preferably within 5 days.
4. File the claim with the following supporting documents:
a. Original Bill of Lading, certified copy, or indemnity bond.
b. Original paid freight bill or indemnity in lieu thereof.
c. Original invoice or certified copy thereof, showing trade
and other discounts or reductions.
d. Copy of the inspection report issued by carrier
representative at the time damage is reported to the
carrier. 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.
RoofCurbInstallation
NOTE: When inspecting the unit for transportation damage,
remove all packaging materials. Recycle or dispose of the
packaging material according to local codes.
6
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burners must not exceed the rated input shown on the rating
plate. Overfiring of the unit could result in premature heat
exchanger failure.
RIGGING DETAILS
HIGH ALTITUDE DERATE (U.S. INSTALLATIONS ONLY)
IMPORTANT NOTE: The gas/electric units naturally derate 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. At all altitudes, the
manifold pressure must be within 0.3 inches W.C. of that listed
on the nameplate for the fuel used. At all altitudes and with
either fuel, the air temperature rise must be within the range
listed on the unit nameplate.
IMPORTANT NOTE: If using bottom discharge with roof curb,
ductwork should be attached to the curb prior to installing the
unit. Ductwork dimensions are shown in roof curb installation
instructions.
Refer to the Roof Curb Installation Instructions for proper curb
installation. Curbing must be installed in compliance with the
National Roofing Contractors Association Manual.
Refer to the Installation Manual provided with the LP kit for
conversion from natural gas to propane gas and for altitude
adjustments.
Lower unit carefully onto roof mounting curb. While rigging
unit, center of gravity will cause condenser end to be lower
than supply air end.
Use HA02 for installations above 2000’.
PIPING
IMPORTANT NOTE: To avoid possible unsatisfactory operation
or equipment damage due to under firing of equipment, do
not undersize the natural/propane gas piping from the meter/
tank to the unit. When sizing a trunk line, include all appliances
on that line that could be operated simultaneously.
The rating plate is stamped with the model number, type of
gas and gas input rating. Make sure the unit is equipped to
operate on the type of gas available. The gas line installation
must comply with local codes, or in the absence of local codes,
with the latest edition of the National Fuel Gas Code NFPA 54/
ANSI Z223.1.
NaturalGasConnection
Natural Gas Capacity of Pipe
in Cubic Feet of Gas Per Hour (CFH)
Nominal Black Pipe Size (inches)
Length of
Pipe in Feet
1
1/2
132
92
73
63
56
50
46
43
40
38
3/4
278
190
152
130
115
105
96
1
1/4
1050
730
590
500
440
400
370
350
320
305
1
1/2
1600
1100
980
760
670
610
560
530
490
460
10
20
30
40
50
60
70
80
90
100
520
350
285
245
215
195
180
170
160
150
Rigging
GAS PIPING
90
84
79
IMPORTANT NOTE: This unit is factory set to operate on natural
gas at the altitudes shown on the rating plate.
Pressure = .50 PSIG or less and Pressure Drop of 0.3" W.C. (Based
on 0.60 Specific Gravity Gas)
BTUH Furnace Input
CFH =
Heating Value of Gas (BTU/Cubic Foot)
Refer to the Proper Piping Practice drawing for the general
layout at the unit. The following rules apply:
1. Use black iron pipe and fittings for the supply piping. The
use of a flex connector and/or copper piping is permitted
as long as it is in agreement with local codes.
2. Use pipe joint compound on male threads only. Pipe joint
compound must be resistant to the action of the fuel used.
The rating plate is stamped with the model number, type of gas
and gas input rating. Make sure the unit is equipped to operate on
the type of gas available. Conversion to LP gas is permitted with
the use of the factory authorized conversion kit LPM-05.
3. Use ground joint unions.
INLET GAS PRESSURE
4. 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.
5. Use two pipe wrenches when making connection to the
gas valve to keep it from turning.
6. Install a manual shut-off valve in a convenient location
(within six feet of unit) between the meter and the unit.
7. Tighten all joints securely.
Natural
Min. 5.0" W.C., Max. 10.0" W.C.
Min. 11.0" W.C., Max. 13.0" W.C.
Propane
Inlet Gas Pressure Must Not Exceed the Maximum Value Shown in
Table Above.
The minimum supply pressure should not vary from that
shown in the table above because this could prevent the unit
from having dependable ignition. In addition, gas input to the
7
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There will be air in the gas supply line after testing for leaks
on a new installation. Therefore, the air must be bled from the
line by loosening the ground joint union until pure gas is
expelled. Tighten union and wait for five minutes until all gas
has been dissipated in the air. Be certain there is no open
flame in the vicinity during air bleeding procedure. The unit is
placed in operation by closing the main electrical disconnect
switch for the unit.
8. The unit must be connected to the building piping by one
of the following methods:
•
•
Rigid metallic pipe and fittings
Semirigid metallic tubing and metallic fittings
(Aluminum alloy tubing must not be used in exterior
locations)
•
•
Listed gas appliance connectors used in accordance
with the terms of their listing that are completely in the
same room as the equipment
PROPANE GAS INSTALLATIONS
In the prior two methods above the connector or tubing
must be protected from physical and thermal damage.
Aluminum alloy tubing and connectors must be coated
to protect against external corrosion when in contact
with masonry, plaster or insulation or are subject to
repeated wettings by liquids (water - not rain water,
detergents or sewage)
IMPORTANT NOTE: Propane gas conversion kits must be
installed to convert units to propane gas. Refer to the gas
piping section for the correct LP kit for conversion.
MANUAL
SHUT-OFF
VALVE
All propane gas equipment must conform to the safety
standards of the National Board of Fire Underwriters (See
NBFU Manual 58).
For satisfactory operation, propane gas supply pressure must
be within 9.7 - 10.3 inches W.C. at the manifold with all gas
appliances in operation. Maintaining proper gas pressure
depends on three main factors:
DRIP LEG
1. Vaporization rate, which depends on (a) temperature of
the liquid, and (b) wetted surface area of the container or
containers.
GROUND JOINT UNION
(INSTALLED AHEAD OF GAS VALVE)
2. Proper pressure regulation.
GROMMET
3. Pressure drop in lines between regulators, and between
second stage regulator and the appliance. Pipe size
required will depend on length of pipe run and total load of
all appliances.
Proper Piping Practice
NOTE: The unit gas supply entrance is factory sealed with
plugs. Keep plugs in place until gas supply is ready to be
installed. Once ready, replace the plugs with the supplied
grommets and install gas supply line.
TANKS AND PIPING
Complete information regarding tank sizing for vaporization,
recommended regulator settings and pipe sizing is available
from most regulator manufacturers and propane gas
suppliers.
GAS PIPING CHECKS
Since propane gas will quickly dissolve white lead or most
standard commercial compounds, special pipe dope must
be used. Shellac base compounds resistant to the actions of
liquefied petroleum gases such as Gasolac®, Stalactic®,
Clyde’s® or John Crane® are satisfactory.
See below for typical propane gas piping.
5 to 15 PSIG
First Stage
(20 PSIG Max.)
Regulator
Continuous
11" W.C.
200 PSIG
Maximum
Second Stage
Regulator
TypicalPropaneGasPiping
8
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Sizing Between First and Second Stage Regulator
Maximum Propane Capacities listed are based on 1 PSIG Pressure Drop at 10
PSIG Setting. Capacities in 1,000 BTU/HR
cooling. Units which will have economizers may use thermostats
with two or three stages of cooling.All units can use single stage
or multi-stage thermostats. Refer to figures later in this section
for wiring.
PIPE OR
NOMINAL PIPE SIZE,
SCHEDULE 40
TUBING
LENGTH,
FEET
TUBING SIZE, O.D., TYPE L
3/8"
1/2"
5/8"
3/4"
7/8"
1/2"
3/4"
30
40
309
700
1,303
2,205
3,394
1,843
3,854
265
235
213
196
182
171
161
130
111
90
599
531
481
446
412
386
365
293
251
222
201
185
172
1,115
988
896
824
767
719
679
546
467
414
378
345
321
1,887
1,672
1,515
1,394
1,297
1,217
1,149
923
2,904
2,574
2,332
2,146
1,996
1,873
1,769
1,421
1,216
1,078
976
1,577
1,398
1,267
1,165
1,084
1,017
961
3,298
2,923
2,649
2,437
2,267
2,127
2,009
1,613
1,381
1,224
1,109
1,020
949
50
60
70
The units are designed for operation on 60 hertz current and at
voltages as shown on the rating plate. All internal wiring in the
unit is complete. It is necessary to bring in the power supply to
the contactor as shown on the unit wiring diagram which is
supplied with each unit. The low voltage wiring must be connected
between the unit control panel and the room thermostat.
80
90
100
150
200
250
300
350
400
772
790
660
700
585
89
634
530
82
584
898
488
76
543
836
454
To convert to Capacities at 15 PSIG Settings -- Multiply by 1.130
To convert to Capacities at 5 PSIG Settings -- Multiply by 0.879
(
Thermostat
Two-Stage Heating
with
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/HR
Y2
Y1
R
C
(
Two-Stage Cooling
PIPE OR
NOMINAL PIPE SIZE,
SCHEDULE 40
TUBING SIZE, O.D., TYPE L
TUBING
LENGTH,
FEET
W1
G
W2
3/8"
1/2"
5/8"
3/4"
7/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
10
20
49
110
206
348
539
291
608
1,146
2,353
3,525
34
27
23
20
19
16
14
12
11
10
9
76
61
52
46
42
36
32
28
26
22
19
18
16
15
141
114
97
86
78
67
59
52
48
41
36
33
30
28
239
192
164
146
132
113
100
89
368
296
253
224
203
174
154
137
124
106
94
200
161
137
122
110
94
418
336
284
255
231
198
175
155
141
120
107
97
788
632
541
480
436
372
330
292
265
227
201
182
167
156
1,617
1,299
1,111
985
2,423
1,946
1,665
1,476
1,337
1,144
1,014
899
30
40
Furnace Integrated
Control Module
50
60
892
G Y1 Y2
C W1W2
R
80
764
100
125
150
200
250
300
350
400
84
677
Two-Stage Heating with Two-Stage Cooling
ThermostatDiagram
74
600
80
67
544
815
69
58
465
697
SINGLE STAGE THERMOSTAT
61
51
412
618
To use a single stage thermostat, move jumper located to the
left of the terminal strip labeled “Stage Delay” from NONE to
“5” or “10” minutes. This selection will cause the control to
run on low stage for the selected time (5 or 10 minutes) then
shift to HIGH STAGE. This option controls both cooling and
heating modes. If the jumper is not moved, only low-stage
cool and low-stage heat will operate.
8
55
85
46
374
560
7
51
78
43
89
344
515
7
47
73
40
83
320
479
*DATA IN ACCORDANCE WITH NFPA PAMPHLET NO. 54
Propane Gas Pipe Sizing
5 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
10 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
ELECTRICAL WIRING
THERMOSTAT LOCATION
Mount the thermostat approximately five feet above the floor,
in an area that has an inside, vibration-free wall and has
good air circulation.
Movement of air must not be obstructed by furniture, door,
draperies, etc. The thermostat must not be mounted where it
will be affected by drafts, hot or cold water pipes or air ducts in
walls, radiant heat from fireplace, lamps, the sun, television,
etc. Consult the Instruction Sheet packaged with thermostat
for mounting instructions.
Two-Stage Heating (timed) and Two-Stage Cooling (timed)
with Single Stage Thermostat Diagram
Refer to the unit wiring diagram for electrical connections.
When installed, the unit must be electrically grounded in
accordance with local codes or in the absence of local codes,
with the National Electrical Code, ANSI/NFPA No. 70, and/or
the CSA C22.1 Electrical Code. Ensure low voltage
connections are waterproof.
NOTE: *PG1524, *PG1530, *PG1537, and *PG1549 units have
one stage of mechanical cooling and two stages of heat.All other
units have two stages of heating and two stages of mechanical
9
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UNIT VOLTAGE
The unit transformer is factory connected for 230V operation.
If the unit is to operate on 208V, reconnect the transformer
primary lead as shown on the unit wiring diagram. The induced
draft blower on some models is equipped with a low speed
230V lead (blue) and a low speed 208V lead (black). If
equipped, connect the induced draft blower low speed 208V
lead (black) in place of the low speed 230V lead (blue). Place
the unused 230V lead on the “PARK” terminal located on
ignition control.
HEAT ANTICIPATOR SETTING
The heat anticipator is to be set by measuring the load
(amperage) at the “R” circuit. Follow the instructions provided
with the thermostat for more details.
For unit protection, use a fuse or HACR circuit breaker that is in
excess of the circuit ampacity, but less than or equal to the
maximum overcurrent protection device. DO NOT EXCEED
THE MAXIMUM OVERCURRENT DEVICE SIZE SHOWN ON
UNIT DATAPLATE.
All line voltage connections must be made through
weatherproof fittings. All exterior power supply and ground
wiring must be in approved weatherproof conduit. Low voltage
wiring from the unit control panel to the thermostat requires
coded cable. See below for ground level and rooftop wiring.
CIRCULATING AIR AND FILTERS
AIRFLOW CONVERSION
Units can easily be converted from horizontal to down-
discharge airflow delivery. In down-discharge or high static
installations, the installer should measure the total external
static and review the blower performance charts before
performing the installation. In some installations it will be
necessary to change the blower speed to provide proper air
flow.
HorizontalAirFlow
Note:Junction box location
shown is optional and is
for illustration purposes only.
Single phase models are shipped without horizontal duct
covers. If needed, these kits may be ordered through
Goodman’s Service Parts department.
JUNCTION BOX
Electrical Power Directly To Junction Box
DuctCoverInstallation
DownDischargeApplications
Cut insulation around bottom openings and remove panels
from the bottom of the unit, saving the screws holding the
panels in place.
NOTE: Single phase models require installation of horizontal
duct kit #20464501PDGK (medium chassis) and
#20464502PDGK (large chassis).
DUCTWORK
Duct systems and register sizes must be properly designed
for the C.F.M. and external static pressure rating of the unit.
Ductwork should be designed in accordance with the
recommended methods of Air Conditioning Contractors of
America Manual D (Residential) or Manual Q (Commercial).
Electrical Power Routed Through Bottom of Unit
Typical Electrical Wiring Unit Voltage
10
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All ductwork exposed to the outdoors must include a weatherproof
barrier and adequate insulation.
Aduct system should 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.
HOOD
The supply duct from the unit through a wall may be installed
without clearance. However, minimum unit clearances as
shown in the appendix must be maintained. The supply duct
should be provided with an access panel large enough to
inspect the air chamber downstream of the heat exchanger. A
cover should be tightly attached to prevent air leaks.
LOWER
FLUE
HOOD
SCREEN
LIP
For duct flange dimensions on the unit refer to the Unit
Dimension illustration in the appendix.
For down-discharge applications, the ductwork should be
attached to the roof curb prior to installing the unit. Ductwork
dimensions are shown in the roof curb installation manual.
If desired, supply and return duct connections to the unit may
be made with flexible connections to reduce possible unit
operating sound transmission.
INSTALLATION - COMBUSTION AIR INTAKE HOOD
1. Locate the second hood.
2. Using the three screws provided, attach the hood (with
the opening facing down) to the heat exchanger access
door.
FILTERS
Even though a return air filter is not supplied with this unit,
there must be a means of filtering all return air. All units may
be externally filtered.
Refer to the unit filter size chart in the appendix for filter size
information.
Filters installed external to the unit should be sized in
accordance with their manufacturer recommendations. A
throwaway filter must be sized for a maximum face velocity of
300 feet per minute.
FilterInstallation
IMPORTANT NOTE: When installing a filter, the air flow arrows
on the filter must point toward the circulator blower.
CONDENSATE DRAIN
CONDENSATE DRAIN CONNECTION
VENTING
A 3/4” NPT drain connection is supplied for condensate piping.
An external trap must be installed for proper condensate
drainage.
NOTE: Venting is self-contained. Do not modify or block.
DRAIN
CONNECTION
INSTALLATION -FLUE HOOD EXHAUST
1. Locate the flue hood assembly box from the blower
compartment.
2. Slide screen over flanges on the lower flue hood.
3. Slide screen into hood.
UNIT
2" MINIMUM
4. Using the three screws provided, attach the hood (with the
opening facing down) over the flue exhaust opening in the
utility panel.
FLEXIBLE
TUBING-HOSE
OR PIPE
3" MINIMUM
A POSITIVE LIQUID
SEAL IS REQUIRED
DrainConnection
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NORMAL SEQUENCES OF OPERATION
FAN ONLY
1. Thermostat calls for FAN ONLY by energizing “G”.
2. The indoor blower is immediately energized at the low
heat speed.
3. The indoor blower is immediately de-energized once
thermostat call for FAN is removed.
HEATING
This unit is equipped with an ignition control that automatically
lights the main burner. DO NOT attempt to light the main
burners by any other method.
1. Thermostat calls for low or high stage heating.
2. Induced draft blower energizes for 15-second pre-purge.
3. The spark igniter and low and high stage gas valve are
energized for 7 seconds. NOTE: The igniter produces a
very intense electrical spark that ignites the gas.
4. Main burners light and control detects presence of flame.
5. If the call is for low stage heat, the induced draft blower
switches to low speed and the high stage gas valve closes
5 seconds after the main burners light. If call is for high
stage heat, induced draft blower remains at high speed
and high stage gas valve remains open.
STARTUP, ADJUSTMENTS, AND CHECKS
HEATING STARTUP
This unit is equipped with an electronic ignition device to
automatically light the main burners. It also has a power vent
blower to exhaust combustion products.
On new installations, or if a major component has been
replaced, the operation of the unit must be checked.
Check unit operation as outlined in the following instructions.
If any sparking, odors, or unusual sounds are encountered,
shut off electrical power and check for wiring errors, or
obstructions in or near the blower motors. Duct covers must
be removed before operating unit.
NOTE: If a single stage thermostat is used, the control will
step to low stage after the main burners light and remain
at low stage for 5 or 10 minutes, depending on jumper
position. If the call for HEAT remains after the transition
delay time expires, the control will transition from low stage
to high stage.
HeatAnticipatorSetting
Set the heat anticipator on the room thermostat to 0.4 amps
to obtain the proper number of heating cycles per hour and to
prevent the room temperature from overshooting the room
thermostat setting.
6. The 30-second HEAT FAN ON delay time begins after the
main burners light.
7. The unit delivers heat to the conditioned space until the
thermostat is satisfied.
RolloutProtectionControl
8. Gas valve(s) de-energizes. The induced draft blower
continues operation for a 30-second post-purge.
9. Induced draft blower remains at low speed (or switches
from high to low if operating at high stage heat) for the 30-
second post purge.
10.Ignition control begins timing the HEAT FAN OFF delay.
There is an adjustable HEAT FAN OFF delay of
approximately 90/120/150/180 seconds (factory set at
150). If the unit is operating at high stage when the call for
heat is removed, the blower will operate for 30 seconds at
high heat speed then switch to low heat speed for the
remainder of the selected HEAT FAN OFF delay.
NOTE: After the HEAT FAN OFF delay time has elapsed,
the blower will de-energize. This allows any additional
heat in the heat exchanger to be transferred to the
conditioned space.
The rollout protection device opens, cutting power to the gas
valve, if the flames from the burners are not properly drawn
into the heat exchanger. The rollout protection device is located
on the burner bracket. The reason for elevated temperatures
at the control must be determined and repaired prior to
resetting this manual reset control.
Rollout Protection
COOLING
1. Thermostat calls for low or high stage cooling.
2. If the thermostat call is for low stage cooling, the
compressor and outdoor fan are energized at low stage. If
the thermostat call is for high stage cooling, the
compressor and outdoor fan are energized at high stage.
3. The indoor blower will energize approximately 6 seconds
later.
4. The unit delivers cooling to the conditioned space until the
thermostat is satisfied.
5. The compressor and outdoor fan will be de-energized
when the thermostat opens.
Rollout Protection on Burner Bracket
SecondaryLimitControl
6. The indoor blower continues to run at low cool speed for
approximately 60 seconds after the thermostat is satisfied.
This allows additional cooling from the indoor coil to be
transferred to the conditioned space. Then, the indoor
blower is de-energized.
The secondary limit control is located on the top of the blower
scroll assembly. This control opens when elevated
temperatures are sensed. Elevated temperatures at the
control are normally caused by blower failure. The reason for
the opening should be determined and repaired prior to
resetting.
NOTE: A 180-second anti-short cycle is integral to the control
and prevents recycling of the compressor.
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If the power to the unit is interrupted during the heating cycle, it
may cause the secondary limit to trip. Once the blower
compartment temperature drops below the limit reset
temperature, the limit will automatically reset.
Gas Supply And Manifold Check
Gas supply pressure and manifold pressure with the burners
operating must be as specified on the rating plate.
Gas Inlet Pressure Check
Gas inlet pressure must be checked and adjusted in
accordance to the type of fuel being consumed.
Secondary
Control Limit
With Power And Gas Off:
1. Connect a water manometer or adequate gauge to the
inlet pressure tap of the gas valve.
Inlet gas pressure can also be measured by removing the
cap from the dripleg and installing a predrilled cap with a
hose fitting.
With Power And Gas On:
2. Put unit into heating cycle and turn on all other gas
consuming appliances.
Back of Unit
INLET GAS PRESSURE
Natural
Min. 5.0" W.C., Max. 10.0" W.C.
Min. 11.0" W.C., Max. 13.0" W.C.
SecondaryLimitControl
Pre-Operation Checks
Propane
NOTE: Inlet Gas Pressure Must Not Exceed the Maximum
1. Close the manual gas valve external to the unit.
2. Turn off the electrical power supply to the unit.
3. Set the room thermostat to its lowest possible setting.
4. Remove the heat exchanger door on the side of the unit by
removing screws.
Value Shown.
If operating pressures differ from above, make necessary
pressure regulator adjustments, check piping size, etc., and/
or consult with local utility.
5. This unit is equipped with an ignition device which
automatically lights the main burner. DO NOT try to light
burner by any other method.
Gas Line
Gas
Shutoff
Valve
6. Move the gas control valve switch to the OFF position. Do
not force.
Gas Line
To Furnace
7. Wait five minutes to clear out any gas.
8. Smell for gas, including near the ground. This is important
because some types of gas are heavier than air. If you
have waited five minutes and you do smell gas,
immediately follow the warnings on page 4 of this manual.
If having waited for five minutes and no gas smell is noted,
move the gas control valve switch to the ON position.
9. Replace the heat exchanger door on the side of the unit.
10. Open the manual gas valve external to the unit.
11. Turn on the electrical power supply to the unit.
12. Set the thermostat to desired setting.
Open To
Atmosphere
Drip Leg Cap
With Fitting
Manometer Hose
Manometer
Measuring Inlet Gas Pressure
Alternate Method
Open to
Atmosphere
eter
Manom
Hose
High Fire Regulator
Adjust
Manifold Pressure Check
Outlet
Pressure Boss
Regulator
Vent
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.
3. Back outlet pressure test screw (inlet/outlet pressure boss)
out one turn (counterclockwise, not more than one turn).
A
4. Attach a hose and manometer to the outlet pressure boss
of the valve.
5. Turn ON the gas supply.
Low Fire
Regulator Adjust
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.
Inlet
Pressure Boss
High Fire
Coil Terminal (HI)
Coaxial Coil
Terminal (M)
Common
Terminal (C)
Manometer
On/Off Switch
White-Rodgers Model 36G54 connected to Manometer
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With a properly designed system, the proper amount of
temperature rise will normally be obtained when the unit is
operated at rated input with the recommended blower speed.
If the correct amount of temperature rise is not obtained, it may
be necessary to change the blower speed.Ahigher blower speed
will lower the temperature rise.Aslower blower speed will increase
the temperature rise.
Manifold Gas Pressure
Range
Gas
Nominal
Natural Low Stage
High Stage
Propane Low Stage
High Stage
1.6 - 2.2" w.c.
3.2 - 3.8" w.c.
5.7 - 6.3" w.c.
2.0" w.c.
3.5" w.c.
6.0" w.c.
9.7 - 10.3" w.c. 10.0" w.c.
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.
NOTE: Blower speed MUST be set to give the correct air
temperature rise through the unit as marked on the rating
plate.
External Static Pressure Check
9. Energize main (M) solenoid as well as the HI terminal.
The total external static pressure must be checked on this
unit to determine if the airflow is proper.
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.
Blower Speed Adjustments
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).
WARNING
TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK, REMOVE
ELECTRICAL POWER FROM THE UNIT BEFORE CHANGING SPEED TAPS ON THE
BLOWER MOTOR.
14. Turn on electrical power and gas supply to the system.
15. Turn on system power and energize valve.
16. Using a leak detection solution or soap suds, check for
leaks at pressure boss screw. Bubbles forming indicate
a leak. SHUT OFF GASAND FIXALLLEAKS IMMEDIATELY.
Refer to the wiring diagram in the appendix to verify speed tap
settings.
Depending upon the model, blower speeds are changed at
the indoor blower. The ignition control board has four blower
speeds: LOW HEAT, HI HEAT, LOW COOL and HIGH COOL.
NOTE:
For gas to gas conversion, consult your
dealer for appropriate conversion.
NOTE: FAN ONLY energizes at LOW HEAT speed.
Gas Input (Natural Gas Only) Check
The *PG15 models are equipped with EEM motors. EEM motors
are constant torque motors with very low power consumption.
This motor is energized by 24VAC. Adjust the CFM for the unit
by changing the 24VAC leads to the speed terminal block on the
motor.
To measure the gas input use a gas meter and proceed as
follows:
1. Turn off gas supply to all other appliances except the unit.
2. With the unit operating, time the smallest dial on the meter
for one complete revolution. If this is a 2 cubic foot dial,
divide the seconds by 2; if it is a 1 cubic foot dial, use the
seconds as is. This gives the seconds per cubic foot of
gas being delivered to the unit.
3. INPUT=GAS HTG VALUE x 3600 / SEC. PER CUBIC FOOT
Example: Natural gas with a heating value of 1000 BTU per cubic
foot and 34 seconds per cubic foot as determined by Step 2, then:
Input = 1000 x 3600 / 34 = 106,000 BTU per Hour. NOTE:
BTU content of the gas should be obtained from the gas
supplier. This measured input must not be greater than
shown on the unit rating plate.
HEATING
COOLING
Speed
Tap
Lead Speed
Lead
Color
Definition
Definition
Color
White
Brown
Tap
Low
Speed Heat
Low Speed
Cool
T1
T2
T3
Purple
Yellow
High
Speed Heat
High Speed
Cool
T4
High Speed
Cool Hi-Static
T5
4. Relight all other appliances turned off in step 1. Be sure
all pilot burners are operating.
NOTE: Heating airflow must be adjusted to provide the
temperature rise shown on rating plate. A higher speed tap
may not provide more airflow. Blower speeds are
programmed to deliver adequate airflow at rated external static
pressure (ESP). Refer to airflow table provided in the Appendix
for details.
Main Burner Flame Check
Flames should be stable, soft and blue (dust may cause
orange tips but they must not be yellow) and extending directly
outward from the burner without curling, floating or lifting off.
Temperature Rise Check
Limit Check
Check the temperature rise through the unit by placing
thermometers in supply and return air registers as close to
the unit as possible. Thermometers must not be able to
sample temperature directly from the unit heat exchangers,
or false readings could be obtained.
Check limit control operation after 15 minutes of operation
by blocking the return air grille(s).
1. After several minutes the main burners must go OFF.
Blower will continue to run.
2. Remove air restrictions and main burners will relight
after a cool down period of a few minutes.
Adjust the thermostat setting below room temperature.
1. All registers must be open; all duct dampers must be in
their final (fully or partially open) position and the unit
operated for 15 minutes before taking readings.
2. The temperature rise must be within the range specified
on the rating plate.
1. Main burners must go OFF.
2. Circulating Air Blower will continue to run for 90, 120,
150 or 180 seconds, depending on the setting.
NOTE: Air temperature rise is the temperature difference
between supply and return air.
14
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space. It is the installing contractors responsibility to ensure
the proper refrigerant sub-cooling at the condenser is adjusted
for each application. As the outdoor ambient temperature
rises the sub-cooling decreases and as the outdoor ambient
temperature lowers, the sub-cooling increases. NOTE: Proper
sub-cooling adjustment optimizes cooling performance.
Models equipped with thermostatic expansion valve, charge
the system to sub-cooling, range shown on chart, when
necessary, adjust expansion valve stem for superheat setting.
LOCOOL
HICOOL
U6
U7
U4
LOHEAT
HIHEAT
U3
K2
K1
U5
P1
NOTE: The expansion valve will not need adjustment for most
applications. Ensure system superheat is set within range listed
on chart.
SPEEDUP
F1
SW1
FAULT
BLOWER STAGE
ECON
G
Y1 Y2
R
C
W1 W2
RECALL OFFDELAY DELAY
Control Board (Top)
Design superheat & subcooling @ 95 °F outdoor ambient temperature
NOTE: If necessary, adjust fan OFF delay settings to obtain satis-
factory comfort level.
Models #
GPG152407041
GPG153009041
GPG153709041
GPG154211541
GPG154911541
GPG156014041
Superheat °F
Subcooling °F
8 ‐ 12
8 ‐ 12
5 ‐ 9
‐‐‐
‐‐‐
‐‐‐
‐‐‐
‐‐‐
5 ‐ 9
5 ‐ 9
5 ‐ 9
12 ‐ 18
UnitShutdown
Superheat Adjustment
1. Set the thermostat to lowest setting.
2. Turn off the electrical power supply to the unit.
3. Remove the heat exchanger door on the side of the unit by
removing screws.
4. Move the gas control valve switch to the OFF position. Do
not force.
5. Close manual gas shutoff valve external to the unit.
6. Replace the heat exchanger door on the unit.
7. If cooling and/or air circulation will be desired, turn ON the
electrical power.
To adjust superheat, remove the control box cover and locate
the expansion valve on the liquid line of the evaporator.
Unscrew the cover from the expansion valve, locate the
adjustment screw, and turn it clockwise (in) to increase
superheat or counterclockwise (out) to decrease superheat.
Replace adjustment cap. Wait a minimum of 10 minutes
between adjustments to allow time for the TXV and pressures
to stabilize.
CoolingOperation
COOLING STARTUP
NOTE: Check all manual reset limit controls in heating circuit if
cooling mode does not operate.
NOTE: Mechanical cooling cannot be reliably provided at
ambient temperatures below 50° F.
1. Turn on the electrical power supply to the unit.
2. Place the room thermostat selector switch in the COOL
position (orAUTO if available, and if automatic changeover
from cooling to heating is desired).
Compressor Protection Devices
The compressor includes components which are designed
to protect the compressor against abnormal operating
conditions.
3. Set the room thermostat to the desired temperature.
TROUBLESHOOTING
IGNITION CONTROL ERROR CODES
The following presents probable causes of questionable unit
operation. Refer to Diagnostic Indicator Chart for an
interpretation of the signal and to this section for an explanation.
Refrigerant Charge Check (Units with Fixed Orifice Devices)
Remove the control box access panel and note the number of
diagnostic LED flashes. Refer to Diagnostic Indicator Chart
for an interpretation of the signal and to this section for an
explanation.
After completing airflow measurements and adjustments the
unit’s refrigerant charge must be checked. All package units with
fixed orifice devices are charged using the super heat method at
the compressor suction line.
For charge adjustments, see superheat and charts shown for
each model.
FAULT RECALL
The ignition control is equipped with a momentary push-button
switch that can be used to display on the diagnostic LED the last
five faults detected by the control. The control must be in Standby
Mode (no thermostat inputs) to use the feature. Depress the push-
button switch for approximately 2 seconds. NOTE: Do not hold
for longer than 4 seconds. Holding the button for 4 seconds
or higher will erase the memory! Release the switch when the
LED is turned off. The diagnostic LED will then display the
flash codes associated with the last five detected faults. The
order of display is the most recent fault to the least recent
Cooling Refrigerant Charging (Models with TXV)
Check unit charge before putting the cooling section into full
operation. The unit has a thermostatic expansion valve metering
device. To ensure the unit is properly charged for the intended
application, check the unit refrigerant sub-cooling at the
condenser. The refrigerant sub-cooling is a function of outdoor
ambient temperature and return air temperature of the conditioned
15 fault.
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ABNORMAL OPERATION -HEATING
OPEN THERMAL PROTECTION DEVICE
If a limit switch opens, the gas valve is immediately de-
energized, the induced draft and air circulating blowers are
energized. The induced draft and air circulator blowers remain
energized until the limit switch re-closes. The diagnostic LED
(red) code for an open limit is four (4) flashes.
INTERNAL CONTROL FAILURE
If the integrated ignition control in this unit encounters an
internal fault, it will go into a “hard” lockout and turn off the
diagnostic LED. If diagnostic LED indicates an internal fault,
check power supply to unit for proper voltage, check all fuses,
circuit breakers and wiring. Disconnect electric power for five
seconds. If LED remains off after restoring power, replace
control.
PRIMARY LIMIT
A primary limit will open due to excessive supply air
temperatures. This can be caused by a dirty filter, excessive
duct static, insufficient air flow, or a faulty limit. Check filters,
total external duct static, blower motor, blower motor speed
tap (see wiring diagram), and limit. This limit will automatically
reset once the temperature falls below a preset level.
EXTERNAL LOCKOUT
An external lockout occurs if the integrated ignition control
determines that a measurable combustion cannot be
established within three (3) consecutive ignition attempts. If
flame is not established within the seven (7) second trial for
ignition, the gas valve is de-energized, 30 second inter-purge
cycle is completed, and ignition is re-attempted. The control
will repeat this routine three times if a measurable combustion
is not established. The control will then shut off the induced
draft blower and go into a lockout state.
If flame is established but lost, the control will energize the
circulator blower at the heat speed and then begin a new
ignition sequence. If flame is established then lost on
subsequent attempts, the control will recycle the ignition
sequence.
AUXILIARY/SECONDARY LIMIT
A dirty filter, excessive duct static, insufficient air flow, a faulty
limit, or a failed circulator blower can cause this limit to open.
Check filters, total external duct static, circulator blower motor,
blower motor speed tap (see wiring diagram), and limit. An
interruption in electrical power during a heating cycle may
also cause the auxiliary limit to open. The automatic reset
secondary limit is located on top of the circulator blower
assembly.
ROLLOUT LIMIT
The diagnostic fault code is 1 flash for a lockout due to failed
ignition attempts. The integrated control will automatically
reset after one hour, or it can be reset by removing the
thermostat signal or disconnecting the electrical power supply
for over five seconds. If the diagnostic red LED indicates an
external lockout, perform the following checks:
If the burner flames are not properly drawn into the heat
exchanger, the flame rollout protection device will open.
Possible causes are restricted or blocked flue passages,
blocked or cracked heat exchanger, a failed induced draft
blower, or insufficient combustion air. The rollout protection
device is a manual reset limit located on the burner bracket.
The cause of the flame rollout must be determined and
corrected before resetting the limit.
•
•
•
•
Check the supply and manifold pressures
Check the gas orifices for debris
Check gas valve for proper operation
Check flame sensor
FLAME DETECTED WITH GAS VALVE CLOSED
A drop in flame signal can be caused by nearly invisible
coating on the sensor. Remove the sensor and carefully
clean with steel wool.
If flame is detected with the gas valve de-energized, the
combustion and air circulator blowers are energized. The
diagnostic fault code is five (5) flashes (red LED) for this
condition. The flame diagnostic LED (amber) will flash (2)
times to indicate this condition. The control can be reset by
removing the power supply to the unit or it will automatically
reset after one hour. Miswiring is the probable cause for this
fault.
•
Check wiring
Check wiring for opens/shorts and miswiring.
IMPORTANT NOTE: If you have to frequently reset your gas/
electric package unit, it means that a problem exists that
should be corrected. Contact a qualified servicer for further
information.
LOW FLAME SIGNAL
PRESSURE SWITCH STUCK OPEN
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 signal. If the flame signal
drops below a predetermined value, the ignition control will display
an error code of (1) flash on the amber diagnostic LED. The unit
will continue to operate until the control can no longer detect flame.
A pressure switch stuck open can be caused by a faulty pressure
switch, faulty wiring, a disconnected or damaged hose, a blocked
or restricted flue, or a faulty induced draft blower.
If the control senses an open pressure switch during the pre-
purge cycle, the induced draft blower only will be energized. If
the pressure switch opens after ignition has begun the gas
valve is de-energized, the circulator blower heat off cycle
begins, and the induced draft blower remains on. The
diagnostic LED (red) code is two (2) flashes.
ABNORMAL OPERATION - COOLING
SHORT CYCLE COMPRESSOR DELAY
The automatic ignition control has a built-in feature that
prevents damage to the compressor in short cycling
situations. In the event of intermittent power losses or
intermittent thermostat operation, the ignition control will delay
output to the compressor contactor for three minutes from the
time power is restored or thermostat call for cooling is
restored. (Compressor is off a total of three minutes). The
diagnostic red LED will flash six (6) times to indicate the
compressor contactor output is being delayed.
PRESSURE SWITCH STUCK CLOSED
A stuck closed pressure switch can be caused by a faulty
pressure switch or faulty wiring. If the control encounters a
pressure switch stuck closed, the induced draft blower
remains off. The diagnostic red LED code for this fault is
three (3) flashes.
16
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CONDENSER, EVAPORATOR, AND INDUCED DRAFT MOTORS
Bearings on the air circulating blower motor, condenser motor
and the combustion fan motor are permanently lubricated.
No additional oiling is required.
NOTE: Some electronic thermostats also have a built-in
compressor short cycle timer that may be longer than the
three minute delay given above. If you are using an electronic
thermostat and the compressor has not started after three
minutes, wait an additional five minutes to allow the
thermostat to complete its short cycle delay time.
FLAME SENSOR (QUALIFIED SERVICER ONLY)
A drop in the flame current can be caused by a nearly invisible
coating on the flame sensor. This coating, created by the fuel
or combustion air supply, can be removed by carefully cleaning
the flame sensor with steel wool.
HIGH PRESSURE SWITCH/LOSS OF CHARGE SWITCH
Some models include a high pressure cutout switch and/or a
loss of charge cutout switch. The high pressure cutout switch
protects the refrigeration system from excessive operating
pressures. The loss of charge cutout switch protects the
refrigeration system from very low operating pressures due
to a loss of refrigerant. Compressor operation will be disabled
if either of these devices opens. If either devices opens, the
diagnostic red LED will flash (9) times to indicate that a
refrigeration system pressure switch is open.
NOTE: After cleaning, the microamp signal should be stable
and in the range of 4 - 6 microamps DC.
Flame
Sensor
MAINTENANCE
Have the gas heating section of the unit checked at least
once a year before the heating season begins, to be sure that
the combustion air inlet and flue outlet hoods are not blocked
by debris, which would prevent adequate combustion air and
a properly operating vent system.
Flame Sensor
FLUE PASSAGES (QUALIFIED SERVICER ONLY)
At the start of each heating season, inspect and, if necessary,
clean the unit flue passage.
FILTER REPLACEMENT OR CLEANING
A return air filter is not supplied with this unit; however, there
must be a means of filtering all of the return air. The filter(s)
may be located in the return air duct(s), or return air filter
grille(s). Consult with your installing dealer for the actual
location of the return air filter(s) for your unit.
CLEANING FLUE PASSAGES (QUALIFIED SERVICER ONLY)
1. Shut off electric power and gas supply to the unit.
2. Remove burner assembly by disconnecting the gas line
and removing the manifold bracket from the partition panel.
3. Remove the flue from the induced draft blower and the
collector box cover from the partition panel.
4. The primary heat exchanger tubes can be cleaned using a
round wire brush attached to a length of high grade stainless
steel cable, such as drain cleanout cable. Attach a variable
speed reversible drill to the other end of the spring cable.
Slowly rotate the cable with the drill and insert it into one of
the primary heat exchanger tubes. While reversing the drill,
work the cable in and out several times to obtain sufficient
cleaning. Use a large cable for the large tube, and then repeat
the operation with a small cable for the smaller tube. Repeat
for each tube.
Dirty filters are the most common cause of inadequate heating
or cooling performance. Filter inspection should be made at
least every two months; more often if necessary because of local
conditions and usage.
Dirty throwaway filters should be discarded and replaced with a
new, clean filter. Dirty permanent filters should be washed with
water, thoroughly dried and sprayed with a filter adhesive before
being reinstalled. (Filter adhesives may be found at many
hardware stores.) Permanent filters should last several years.
However, should one become torn or uncleanable, it should be
replaced.
5. When all heat exchanger tubes have been cleaned,
replace the parts in the reverse order in which they were
removed.
6. To reduce the chances of repeated fouling of the heat
exchanger, perform the steps listed in “Startup,
Adjustments, and Checks”.
CABINET FINISH MAINTENANCE
Use a fine grade automotive wax on the cabinet finish to
maintain the finish’s original high luster. This is especially
important in installations with extended periods of direct
sunlight.
CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)
The coil with the outside air flowing over it should be inspected
annually and cleaned as frequently as necessary to keep the
finned areas free of lint, hair and debris.
17
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MAIN BURNER FLAME (QUALIFIED SERVICER ONLY)
Flames should be stable, soft and blue (dust may cause
orange tips but must not be yellow). The flames must extend
directly outward from the burner without curling, floating or
lifting off.
For further information on the yearly inspection, consult the
User Manual. It is recommended that a qualified servicer
inspect and service the unit at least once each year.
Check the burner flames for:
1. Good adjustment
2. Stable, soft and blue
Turn the unit on at the thermostat. Wait a few minutes, since
any dislodged dust will alter the normal flame appearance.
Flames should be predominantly blue and directed into the
tubes. They should not be yellow. They should extend directly
outward from the burner ports without curling downward,
floating or lifting off the ports.
3. Not curling, floating, or lifting off.
Burner Flame
ACCESSORIES AND FUNCTIONAL PARTS
SHEET METAL ACCESSORIES
Additional accessories can be purchased to fit specific application
needs. Parts and instructions are available from your distributor.
At least once a year, prior to or during the heating season,
make a visual check of the burner flames.
FUNCTIONAL PARTS
NOTE: This will involve removing and reinstalling the heat exchanger
door on the unit, which is held by two screws. If you are uncertain
about your ability to do this, contact a qualified servicer.
If a strong wind is blowing, it may alter the airflow pattern within the
unit enough that an inspection of the burner flames is not pos-
sible.
FUNCTIONAL PARTS
Auxiliary Limit Switch
Blower Housing
Circulator Blower Motor
Blower Wheel
Flame Rollout Switch
Flame Sensor
Gas Orifice
Gas Valve
CLEANING BURNERS
Burner
Heat Exchanger
High Limit Switch
Igniter
1. Shut off electric power and gas supply to the unit.
2. Remove the screws securing the manifold to the burner
retention bracket. Remove the manifold and rotate each
burner counterclockwise to remove.
Capacitor
Compressor
Condenser Coil
Condenser Fan Blade
Condenser Fan Motor
Contactor
Ignition Control
Induced Draft Blower
Pressure Switch
Pressure Switch Hose
Thermostatic Expansion Valve
Transformer
Burner
Burner
Bracket
Gas Manifold
Evaporator Coil
Functional Parts List
GENERAL INFORMATION
Manifold
1. Refer to the description in Functional Parts List when
ordering any of the listed functional parts. Be sure to provide
the unit model and serial numbers with the order.
2. Although only functional parts are shown, all sheet metal
parts, doors, etc. may be ordered by description.
3. Parts are available from your distributor.
ManifoldAssembly
3. Remove the burners.
4. Use a bottle brush to clean burner insert and inside of the
burners.
5. Replace burners and manifold, inspect the burner
assembly for proper seating of burners in retention slots.
6. Reconnect electrical power and gas supply.
18
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APPENDIX
19
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IGNITION CONTROL DIAGNOSTIC INDICATOR CHART
Red Light Signal Refer to Abnormal Heating or Cooling Operation Sections of this Manual
Off
Internal Control Failure
1 Flash
External Lockout
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
Pressure Switch Stuck Open
Pressure Switch Stuck Closed
Thermal Protection Device Open
Flame Detected with Gas Valve Closed
Short Cycle Compressor Delay (Cooling Only)
Limit Opened Five (5) Times Within The Same Call For Heat
Indoor/Outdoor Thermostat Open (Cooling Only; Devices Not present On All Models)
High Pressure/Loss of Charge Switch Open (Cooling Only; Devices Not Present On All Models)
Amber Light Signal Refer to Abnormal Heating or Cooling Operation Sections of this Manual
Off
No Flame Present
On
Normal Flame
1 Flash
2 Flashes
Low Flame Current
Flame Detected with Gas Valve De-energized.
HEATING TIMING CHART
HIGH
LOW
OFF
Circulator
Blower
HIGH
LOW
OFF
Gas Valve
Igniter
ON
OFF
Induced
Draft
Blower
HIGH
LOW
OFF
HIGH
LOW
OFF
Thermostat
Seconds
0
15
22
27
52
0
30
90, 120, 150, 180
COOLING TIMING CHART
HIGH
LOW
OFF
Circulator
Blower
HIGH
LOW
OFF
Compressor
Outdoor Fan
HIGH
LOW
OFF
20
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UNIT DIMENSIONS
47
51
FLUE EXHAUST
HOOD
18 7/16
FLUE EXHAUST
16
A
1 3/8
5 1/2
C
16
7 15/16
B
SUCTION/LIQUID PRESSURE PORTS
BEHIND COMPRESSOR ACCESS PANEL
2 3/4
COMBUSTION AIR INTAKE
RETURN
B
3
HEAT EXCHANGE ACCESS PANEL
GAS SUPPLY ENTRANCE
4 3/4
SUPPLY
CONDENSATE DRAIN CONNECTION
3/4" NPT FEMALE
EVAPORATOR/CONTROL PANEL ACCESS PANEL
16 1/8
19 1/8
7 5/16
DIMENSION
(INCHES)
LARGE
MEDIUM
7 7/8
20
A
B
C
32
16
40
18
14
9 1/2
24
POWER WIRE ENTRANCE
CONTROL WIRE ENTRANCE
5 1/4
EXHAUST FLUE HOOD
BLOWER ACCESS PANEL
COMBUSTION
AIR INTAKE
11
5 3/4
22
22
11
SUPPLY
RETURN
21
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*PG15*****41A* WIRING DIAGRAM
HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO
SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
YL/BK
YL/BK
BL/PK
YL
BK
LPS
RD
PU
RD
SEE NOTE 6
S R C
T1
L1
T2
L2
GND
BL
PU
BL/PK
COMP
SOL
YL
CC
HPS
BL
PU
BK
POWER SUPPLY
208-230/1/60
SEE NOTE 3
BR
BK
GR
BL
CM
3
2
1
6
5
4
PU
1
C
2
208
3
240
PU
BK
BK
YL
TR
24V
PU
PU
GR
PU
RD
YL
BL
RD
BL
C
L G N
EM
PU
BK
BL
PU
BK
WH
PU
PU
BR
RD
PU
YL
BK
IGN
OR
LS
L2
T1
LOW
HIGH L1 LOW
HI
ALS
PARK
ODF
INDUCER
OR
OR
BK
FS
YL
PU
FS
RD
PS
RS
YL
YL
YL
6
3
2
1
YL
5
LO COOL
PU
BL
5
4
YL
BR
PU
4
3
2
1
24VAC COM
HI COOL
OR
YL
SEE NOTE 7
YL
BL
BL
YL
HI HEAT
LO HEAT
OR
BR
1
2
3
4
5
7
8
9
BR
OR
YL
W. R.
GAS VALVE
6
OR
PU
180
150
120
F
WH
NONE
5 MIN
90 10 MIN
M
GV
PU
BLOWER STAGE
OFF DELAY DELAY
ECON R C W1W2 G Y1 Y2
H
C
BR
BL
VM
BL
BK
RD
F
PU
RD
PU
BK
H
C
RD
YL
YL
PU
BL
RCCF
BR
BR
0140G00533 REV A
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
22
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*PG15*****41A* WIRING DIAGRAM
HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO
SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
L1
L1
SUPPLY VOLTAGE
208-230/1/60
L2
L2
CC
T1
CC
T2
C
COMPONENT LEGEND
FACTORY WIRING
R
C
LINE VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
ALS
AUXILLARY LIMIT SWITCH
S
H
COMP
COMPRESSOR
LO
HI
CM
CC
CONDENSER MOTOR
CONTACTOR
F
CM
L2
ECON ECONOMIZER
LO
EM
F
FS
GND
GV
IIC
IGN
LS
FIELD WIRING
EVAPORATOR MOTOR
FUSE
FLAME SENSOR
EQUIPMENT GROUND
GAS VALVE
INTEGRATED IGNITION CONTROL
IGNITOR
LIMIT SWITCH
L2
L2
L2
VM
EM
HIGH VOLTAGE
LOW VOLTAGE
HI
L1
WIRE CODE
BK BLACK
BL BLUE
BR BROWN
GR GREEN
OR ORANGE
PK PINK
PU PURPLE
RD RED
L1
2
SEE NOTE 2
TR
F
P1
TH
PS
PRESSURE SWITCH
RCCF
RUN CAPACITOR FOR COMPRESSOR/FAN
ROLLOUT SWITCH
SOLENOID (2ND STAGE COOL)
TRANSFORMER
ALS
PS
LS
RS
HLO
HLI
RS
SOL
TR
1
3
R
WH WHITE
YL YELLOW
VM
VENT MOTOR
PSW
PSW
MVL
6
8
W 1
W 2
TO
MICRO
9
M
NOTES
GV
MVH
MVC
Y2
C
7
5
HI
C
1. REPLACEMENT WIRE MUST BE THE SAME SIZE AND TYPE OF
INSULATIONAS ORIGINAL.(USE COPPER CONDUCTOR ONLY).
2. FOR 208 VOLT TRANSFORMER OPERATION MOVE BLACK WIRE
COM
P2
Y1
1
4
FROM TERMINAL
3
TO TERMINAL
2
ON TRANSFORMER.
3. USE COPPER CONDUCTORS ONLY.
HPS
5
3
4. FOR 208V OPERATION, REMOVE BLUE LEAD FROM INDUCER LOW
TERMINAL. MOVE BLACK LEAD FROM PARK TERMINAL ONTO
INDUCER LOW TERMINAL. PLACE BLUE LEAD ON PARK TERMINAL.
LPS
SEE NOTE 7
5. USE NEC CLASS 2 WIRE FOR THERMOSTAT FIELD WIRING.
6. COMPRESSOR 2ND STAGE SOLENOID NOT PRESENT ON ALL MODELS.
7. OPTIONAL REFRIGERANT SWITCHES
SEE NOTE 8
ECON
5
6
2
1
2
CC
8. FOR ECONOMIZER, REMOVE PLUG FROM ECONOMIZER HARNESS.
CONNECT PLUG FROM ECONOMIZER TO HARNESS.
5
4
ECON
SOL
ECON
3
ECON
LO HEAT
HI HEAT
G
TO
MICRO
EM
C
LO COOL
HI COOL
DIAGNOSTIC
LED - RED
DIAGNOSTIC
LED - RED
CHECK
-
STATUS
CHECK
STATUS
ON
NORMAL OPERATION
LIMIT OPEN 5 TIMES IN
SAME CALL FOR HEAT
CHECK MAIN LIMIT SWITCH
CHECK AUXILIARY LIMIT SW.
7 FLASHES
CHECK INPUT POWER
CHECK FUSE(S)
NO POWER OR
INTERNAL CONTROL
FAULT
OFF
CHECK JUMPER BETWEEN
1 AND 4 ON 6-CIRCUIT
CONNECTOR
CHECK OPTIONAL
GAS FLOW
GAS PRESSURE
GAS VALVE
8 FLASHES
9 FLASHES
IDT/ODT OPEN
PSW/LOC OPEN
1 FLASH
IGNITION FAILURE
REFRIGERANT SWITCHES
FLAME SENSOR
CHECK REFRIGERANT
SWITCHES FOR LOSS OF
CHARGE OR HIGH HEAD
PRESSURE
CHECK PRESSURE SWITCH
CHECK TUBING
CHECK VENT MOTOR
2 FLASHES
PRESSURE SWITCH OPEN
PRESSURE SWITCH CLOSED
WITHOUT INDUCER ON
CHECK PRESSURE SWITCH
CHECK WIRING FOR SHORTS
3 FLASHES
4 FLASHES
DIAGNOSTIC
LED - AMBER
CHECK MAIN LIMIT SWITCH
CHECK AUXILIARY LIMIT SW.
CHECK ROLLOUT LIMIT SW.
CHECK
STATUS
OPEN LIMIT SWITCH
FALSE FLAME DETECTED
COMPR. SHORT CYCLE DELAY
OFF
ON
NO FLAME PRESENT
-
-
CHECK GAS VALVE
CHECK FOR SHORTS IN
FLAME SENSOR WIRING
NORMAL FLAME PRESENT
5 FLASHES
6 FLASHES
GAS FLOW
GAS PRESSURE
GAS VALVE
1 FLASH
LOW FLAME SIGNAL
3 MIN COMP. SHORT
CYCLE DELAY
FLAME SENSOR
CHECK GAS VALVE
CHECK FOR SHORTS IN
FLAME SENSOR WIRING
FALSE FLAME DETECTED
2 FLASHES
0140G00533 REV A
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
23
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*PG15*****41B* WIRING DIAGRAM
HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO
SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
24
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*PG15*****41B* WIRING DIAGRAM
HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO
SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
25
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MINIMUM CLEARANCES
48" MIN
12" MIN
3"
MIN
.
12" MIN
36" MIN
(FOR SERVICE)
NOTE: Roof overhang should be no more than 36".
RECOMMENDED FILTER SIZES
-
UNIT
2 Ton
2 1/2 Ton
3 Ton
3 1/2 / 4 Ton
5 Ton
Min. Filter Size
(1)20 x 20 x 1 (1)20 x 25 x 1 (1)25 x 25 x1 (2)20 x 20 x 1 (2)20 x 25 x 1
26
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BLOWER PERFORMANCE DATA
*PG152407041** - Rise Range: 35° - 65° F
T1 T2
CFM WATTS RISE CFM WATTS RISE
T3 T4
CFM WATTS CFM WATTS
T5
WATTS
E.S.P
CFM
1047
998
948
899
850
801
---
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
729
680
631
582
532
---
55
63
71
79
87
---
---
---
52
57
62
X
913
864
815
766
717
667
---
103
111
119
127
135
143
---
57
61
64
X
X
X
897
848
799
750
701
652
---
99
107
115
123
131
139
---
897
848
799
750
701
652
---
99
107
115
123
131
139
---
139
146
154
162
170
178
---
X
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
*PG153009041** - Rise Range: 45° - 75° F
T1
ST Stage Heating
T2
T3 T4
CFM WATTS CFM WATTS
T5
Cooling Speed Cooling Speed Cooling Speed
E.S.P
1
2nd Stage Heating Speed
CFM WATTS RISE CFM WATTS RISE
CFM
1326
1282
1237
1192
1148
1103
---
WATTS
248
256
263
271
279
287
---
0.1 1050
0.2 1006
139
147
154
162
170
178
185
193
49
52
54
57
60
63
69
72
1256
1211
1167
1122
1077
1033
988
220
228
236
243
251
259
267
---
55
57
59
62
64
68
70
---
1123
1079
1034
989
168
176
183
191
199
206
214
222
1123
1079
1034
989
168
176
183
191
199
206
214
222
0.3
0.4
0.5
0.6
0.7
0.8
961
916
872
827
782
738
945
900
945
900
855
811
855
811
---
---
---
*PG153709041** - Rise Range: 45° - 75° F
T1
ST Stage Heating
Speed
CFM WATTS RISE CFM WATTS RISE
T2
2nd Stage Heating Speed
T3
Cooling Speed Cooling Speed Cooling Speed
T4
T5
1
E.S.P
CFM WATTS CFM WATTS
CFM
1408
1362
1315
1269
1223
1177
---
WATTS
304
311
319
326
334
341
---
0.1 1053
0.2 1007
143
151
158
165
173
180
188
195
49
52
54
57
60
63
69
72
1257
1211
1165
1119
1073
1027
980
236
243
250
258
265
273
280
---
55
57
59
62
64
68
70
---
1184
1138
1092
1046
1000
954
203
210
217
225
232
240
247
255
1184
1138
1092
1046
1000
954
203
210
217
225
232
240
247
255
0.3
0.4
0.5
0.6
0.7
0.8
961
915
869
823
777
731
908
862
908
862
---
---
---
*PG154211541** - Rise Range: 45° - 75° F
T1
1ST Stage Heating
Speed
T2
T3
Cooling Speed Cooling Speed Cooling Speed
T4
T5
nd Stage Heating Speed
E.S.P
2
CFM WATTS RISE CFM WATTS RISE
CFM WATTS CFM WATTS
CFM
1609
1556
1504
1451
1399
1347
1294
1242
WATTS
365
373
381
388
396
404
412
420
0.1 1090
0.2 1025
150
158
166
174
181
189
197
205
52
57
62
X
1286
1225
1165
1105
1045
984
231
239
247
255
262
270
278
---
57
61
64
X
1354
1296
1237
1178
1120
1061
1002
944
260
267
275
283
291
299
306
314
1354
1296
1237
1178
1120
1061
1002
944
260
267
275
283
291
299
306
314
0.3
0.4
0.5
0.6
0.7
0.8
960
895
830
765
699
634
X
X
X
---
---
---
---
---
924
---
*PG154911541** - Rise Range: 45° - 75° F
T1
ST Stage Heating
Speed
CFM WATTS RISE CFM WATTS RISE
T2
2nd Stage Heating Speed
T3
Cooling Speed Cooling Speed Cooling Speed
T4
T5
1
E.S.P
CFM WATTS CFM WATTS
CFM
1709
1659
1609
1559
1509
1459
1409
---
WATTS
407
414
422
430
438
446
453
---
0.1 1164
0.2 1100
0.3 1037
180
188
196
204
212
220
227
235
56
59
62
65
70
75
X
1435
1378
1322
1265
1208
1152
1095
1038
293
301
309
316
324
332
340
348
61
63
65
68
70
73
X
1477
1421
1365
1310
1254
1198
1143
1087
310
318
326
334
342
349
357
365
1477
1421
1365
1310
1254
1198
1143
1087
310
318
326
334
342
349
357
365
0.4
0.5
0.6
0.7
0.8
974
910
847
784
720
X
X
*PG156014041** - Rise Range: 45° - 75° F
T1
ST Stage Heating
Speed
CFM WATTS RISE CFM WATTS RISE
T2
2nd Stage Heating Speed
T3
Cooling Speed Cooling Speed Cooling Speed
T4
T5
1
E.S.P
CFM WATTS CFM WATTS
CFM
2108
2058
2009
1960
1911
---
WATTS
704
713
721
729
737
---
0.1 1792
0.2 1743
0.3 1693
0.4 1644
0.5 1595
0.6 1546
0.7 1496
514
522
530
538
546
554
563
---
X
1792
1743
1693
1644
1595
1546
1496
514
522
530
538
546
554
563
58
61
61
63
65
68
70
---
1366
1317
1267
1218
1169
1120
1071
---
257
265
273
281
290
298
306
---
1939
1889
1840
1791
1742
1693
1643
---
603
611
619
627
635
643
651
---
45
45
46
48
50
52
---
---
---
---
---
0.8
---
X = Outside of Temperature Rise Range - Not Recommended.
NOTE: The shaded area indicates ranges in excess of maximum external static pressure allowable when heating. For satisfactory operation,
external static pressure should not exceed 0.5" w.c.
27
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PACKAGE UNITS - DUAL FUEL & GAS
HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS
We strongly recommend a bi-annual maintenance checkup be performed
by a qualified service agency before the heating and cooling seasons begin.
COMPRESSOR
The compressor motor is hermetically sealed and does not re-
quire additional oiling.
ANNUAL INSPECTION (QUALIFIED SERVICER ONLY)
Your package unit should be inspected by a qualified installer,
or service agency at least twice every year. This check should
be performed before the heating and cooling seasons begin.
This will ensure that adequate combustion air is being drawn
and the vent system is working properly. Particular attention
should be paid to the following items. Repair as necessary.
REPLACE OR CLEAN FILTER
•
Check physical support of the unit. Ensure it is sound
without any sagging, cracks, or gaps, around the base.
Check for obvious signs of deterioration of the unit.
Flue Hood and Combustion Air Inlet. Check for blockage
(wasp nest, etc.) and corrosion.
IMPORTANT NOTE: Never operate unit without a filter installed as
dust and lint will build up on internal parts resulting in loss of
efficiency, equipment damage and possible fire.
A return air filter is not supplied with this unit; however, there must
be a means of filtering the return air. An indoor air filter must be
used with your comfort system. A properly maintained filter will
keep the indoor coil of your comfort system clean. A dirty coil could
cause poor operation and/or severe equipment damage.
The installer of your unit can tell you where your filter(s) are and
how to clean or replace them.
Check your return filter(s) at least once every two months. When
they are dirty, replace or clean as required. Disposable type
filters should be replaced. Reusable type filters may be cleaned.
NOTE: Reusable type filters should be washed with warm water,
dried completely and sprayed with an adhesive according to the
manufacturers recommendations.
You may want to ask your dealer about high efficiency filters. High
efficiency filters are available in both electronic and non-electronic
types. These filters can do a better job of catching small airborne
particles.
Improper filter maintenance is the most common cause of inad-
equate heating or cooling performance. Filters should be cleaned
(permanent) or replaced (disposable) every two months or as re-
quired. When replacing a filter, it must be replaced with a filter of
the same type and size and always make certain the air flow
arrows on the filter point in the proper direction.
CONDENSER, EVAPORATOR AND INDUCED DRAFT MOTORS
The bearings on the air circulating blower motor, condenser motor
and the combustion fan motor are permanently lubricated and
require no further lubrication.
•
•
FLUE HOOD (QUALIFIED SERVICER ONLY)
•
Return Air Connection. Check for physical soundness
and ensure that the connection is firmly sealed to the
package unit casing.
Heat exchanger. Check for corrosion and/or obstructions
within the heat exchanger passageways.
Burners. Check for proper ignition, burner flame, and
flame sense.
Wiring. Check wires for damage.Check electrical
connections for tightness and/or corrosion.
Filters. Check that filters are clean and in the proper
placement in the unit or duct system.
Louvers. Inspect air inlet louvers inside the heat
exchanger compartments. Ensure the area is clean and
free of dirt and debris.
•
•
•
•
•
CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)
The outdoor coil should be inspected annually. It is important to
keep the outdoor coil clean. Dirt, leaves, or debris could restrict the
airflow. If cleaning of the outdoor coil becomes necessary, hire a
qualified servicer. Inexperienced people could easily puncture the
tubing in the coil.
BEFORE CALLING YOUR SERVICER
•
•
Check the thermostat to confirm that it is properly set.
Check the disconnect switch near the unit to confirm that
it is closed.
Check the electrical panel for tripped circuit breakers or
failed fuses . Reset the circuit breakers or replace fuses
as necessary.
Check for blockage of the indoor air inlets and outlets.
Confirm that they are open and have not been blocked by
objects (rugs, curtains or furniture).
•
Check for obstructions on the unit . Confirm that it has
not been covered on the sides or the top. Remove any
obstruction that can be safely removed. If the unit is
covered with dirt or debris, call a qualified servicer to
clean it.
•
•
•
Check the filter. If it is dirty, clean or replace it.
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