Procom Electric Heater ML200HBA User Manual

BLUE FLAME VENT-FREE  
PROPANE/LP GAS  
SPACE HEATER  
OWNER S OPERATION AND INSTALLATION MANUAL  
Do not store, or use gasoline or other flammable  
vapors and liquids in the vicinity of this or any  
other appliance.  
WHAT TO DO IF YOU SMELL GAS  
Do not try to light any appliance.  
Do not touch any electrical switch; do not  
use any phone in your building.  
Immediately call your gas supplier from a  
neighbor’s phone. Follow the gas supplier’s  
instructions.  
If you cannot reach your gas supplier, call  
the fire department.  
Installation and service must be performed by a  
qualified installer, service agency or gas  
supplier.  
ML200TBA  
ML300TBA  
ML200HBA  
ML300HBA  
Table of Contents  
WARNING: Improper  
installation,  
adjustment, alteration, service or mainte-  
nance can cause injury or property damage.  
Refer to this manual for correct installation and  
operational procedures. For assistance or  
additional information consult a qualified  
installer, service agency, or gas supplier.  
Important Safety Information.................................2  
Product Features.....................................................3  
Proper Ventilation & FreshAir...............................4  
Installation................................................................6  
OperatingYour Heater...........................................10  
Cleaning & Maintenance.......................................13  
Trouble Shooting...................................................14  
Specifications..........................................................17  
Parts List.................................................................19  
This appliance may be installed in an aftermar-  
ket* permanently located, manufactured  
(mobile) home, where not prohibited by local  
codes.  
This appliance is only for use with the type of  
gas indicated on the rating plate. This  
appliance is not convertible for use with other  
gases.  
WARNING: If the information in this  
manual is not followed exactly, a fire or  
explosion may result causing property  
damage, personal injury, or loss of life.  
*Aftermarket: Completion of sale, not for purpose of  
resale, from the manufacturer.  
WARNING: This is an unvented gas-fired  
heater. It uses air (oxygen) from the room  
in which it is installed. Provisions for  
adequate combustion and ventilation air must  
be provided. Refer to Air For Combus-  
tion and Ventilation section on page 4 of this  
manual.  
WATER VAPOR: A BY-PRODUCT OF UNVENTED  
ROOM HEATERS  
Water vapor is a by-product of gas combustion. An  
unvented room heater produces approximately one  
(1) ounce (30ml) of water for every 1,000 BTU’s  
(3KW’s) of gas input per hour. Refer to page 3.  
Installer: Please leave these instructions with the  
consumer.  
Continental Appliance Inc.  
5 Musick, Irvine  
California, 92618  
Consumer: Please retain these instructions for  
future use.  
TOLL-FREE PHONE NUMBER: (877)886-5989  
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PRODUCT FEATURES  
Figure1-Vent-Free Propane/LP Gas Heater  
SAFETY DEVICE  
LOCAL CODES  
A standard requirement for all vent-free room  
heaters. This heater has a pilot with an Oxygen  
Depletion Sensor(ODS) safety shutoff system.  
The ODS/pilot shuts off the heater if there is  
not enough fresh air.  
Install and use heater with care. Follow all local  
codes. In the absence of local codes, use the  
latest edition of National Fuel Gas code ANSZ223.1,  
also known as NFPA 54*.  
*Available from :  
American National Standards Institute, Inc.  
1430 Broadway  
PIEZO IGNITION SYSTEM  
This heater is equipped with a piezo ignitor.  
This system requires no matches, batteries, or  
other sources to light heater.  
New York, NY 10018  
National Fire Protection Association, Inc.  
Batterymarch Park  
Quincy, MA 02269  
THERMOSTATIC HEAT  
CONTROL ON THERMOSTAT  
MODELS  
UNPACKING  
1. Remove heater from carton.  
2. Remove all protective packaging applied to  
heater for shipment.  
3. Check heater for any shipping damage. If heater  
is damaged, promptly inform dealer where you  
bought heater.  
These heaters have a control valve with a  
thermostat sensing bulb. This results in the  
greatest heater comfort and may result in  
lower gas bills.  
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS  
The following steps will help insure that water vapor  
does not become a problem.  
1. Be sure the heater is sized properly for the  
application, including ample combustion air and  
circulation air.  
2. If high humidity is experienced, a dehumidifier  
may be used to help lower the water vapor con-  
tent of the air.  
3. Do not use an unvented room heater as the pri-  
mary heat source.  
Water vapor is a by-product of gas combustion. An  
unvented room heater produces approximately one  
(1) ounce (30ml) of water for every 1,000 BTU’s  
(3KW’s) of gas input per hour.  
Unventedroomheatersarerecommendedassupple-  
mental heat (a room) rather than a primary heat  
source (an entire house). In most supplemental heat  
applications, the water vapor does not create a  
problem. In most applications, the water vapor en-  
hances the low humidity atmosphere experienced  
during cold weather.  
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3
Unusually Tight Construction  
The air that leaks around doors and  
windows may provide enough fresh  
air for combustion and ventilation.  
However, in buildings of unusually  
tight construction, you must provide  
additional fresh air.  
Unusually tight construction is  
defined as construction where:  
a. walls and ceilings exposed to  
Confined and  
Unconfined Space  
FRESH AIR FOR  
COMBUSTION AND  
The National Fuel Gas Code ANS  
Z223.1 defines a confined space  
as a space whose volume is less  
than 50 cubic feet per 1,000 Btu per  
hour (4.8 m3 per kw) of the  
aggregate input rating of all  
appliances installed in that space  
VENTILATION  
WARNING: This heater  
shall not be installed in a  
confined space or unusually  
tight  
provisions are provided for  
adequate combustion and  
construction  
unless  
and an unconfined space as  
a
the outside atmosphere have  
a
space whose volume is not less  
than 50 cubic feet per 1,000 Btu per  
hour (4.8 m3 per kw) 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,  
ventilation air. Read the  
following instructions to  
insure proper fresh air for this  
continuous water vapor retarder  
with a rating of one per m (6 10-11  
×
kg per pa-sec-m2) or less with  
openings gasketed or sealed and  
b. weather stripping has been  
added on openable windows and  
doors and  
and  
other  
fuel-burning  
appliances in your home.  
PROVIDING ADEQUATE  
VENTILATION  
c. caulking or sealants are applied  
to areas such as joints around  
window and door frames, between  
sole plates and floors, between  
wall-ceiling joints, between wall  
panels, at penetrations for plumbing,  
electrical, and gas lines, and at  
other openings. If your home meets  
all of the three criteria above, you  
must provide additional fresh air.  
See Ventilation Air from Outdoors,  
page 6. If your home does not  
meet all of the three criteria above  
see Determining Fresh-Air Flow for  
Heater Location, page 5.  
are considered  
unconfined space.  
a
part of the  
The following are excerpts from  
National Fuel Gas Code. NFPA 54/  
ANS Z223.1, Section 5.3. Air for  
Combustion and Ventilation. All  
spaces in homes fall into one of  
the three following ventilation  
classifications:  
1. Unusually Tight Construction  
2. Unconfined Space  
3. Confined Space  
This heater shall not be installed in  
a confined space or unusually tight  
construction unless provisions are  
provided for adequate combustion  
and ventilation air.  
Adjoining rooms are communicat-  
*
ing only if there are doorless pas-  
sageways or ventilation grills  
between them.  
The information on pages 4  
through 6 will help you classify  
your space and provide adequate  
ventilation.  
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION  
Determining if you have a Confined or Unconfined Space*  
Use this worksheet to determine if you have a confined or unconfined space.  
Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways  
or ventilation grills between the rooms.  
1. Determine the volume of the space (length width height).  
×
×
Length Width Height=  
cu.ft. (volume of space)  
×
×
Example: Space size20ft. (length) 16ft. ( width) 8ft. (ceiling height)=2560cu. ft. (volume of space)  
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these  
rooms to the total volume of the space.  
×
×
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.  
(volume of space)÷50 cu. ft.=(Maximum Btu/Hr the space can support)  
Example: 2560 cu. ft. (volume of space)÷50 cu.ft.=51.2 or 51.200(maximum Btu/Hr the space can support)  
WARNING: If the area in which the heater may be operated is smaller than that defined as an  
unconfined space or if the building is of unusually tight construction, provide adequate combustion and  
ventilation air by one of the methods described in the National Fuel Gas Code, ANS Z223.1, Section 5.3  
or applicable local codes.  
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4
3. Add the Btu/Hr of all fuel burning appliances in the space.  
Vent-free heater  
Gas water heater*  
Gas furnace  
Vented gas heater  
Gas Fireplace logs  
Other gas appliances* +  
Total  
Btu/Hr  
Btu/Hr  
Btu/Hr  
Btu/Hr  
Btu/Hr  
Btu/Hr  
Btu/Hr  
Example:  
Gas water heater  
Vent free heater  
Total  
40,000  
20,000  
60,000  
Btu/Hr  
Btu/Hr  
Btu/Hr  
+
=
=
*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and  
vents to the outdoors.  
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.  
Btu/Hr (maximum the space can support)  
Btu/Hr (actual amount of Btu/Hr used)  
Example : 51,200 Btu/Hr(maximum the space can support)  
60,000 Btu/Hr(actual amount of Btu/Hr used)  
The space in the above example is a confined space because the actual Btu/Hr used is more than the  
maximum Btu/Hr the space can support.  
You must provide additional fresh. Your options are as follows:  
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined  
space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From  
inside Building, page 5.  
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6 .  
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.  
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an  
unconfined space. You will need no additional fresh air ventilation.  
VENTILATION AIR  
Ventilation Air From Inside Building  
This fresh air would come from an adjoining  
unconfined space. When ventilating to an  
adjoining unconfined space, you must  
provide two permanent openings: one within  
12" of the ceiling and one within 12" of the  
floor on the wall connecting the two spaces  
(see options 1 and 2, Figure 2). You can also  
remove door into adjoining room (see option  
3, Figure 2). Follow the National Fuel Gas  
Code NFPA 54/ANS Z223.1. Section 5.3, Air  
for Combustion and Ventilation for required  
size of ventilation grills or ducts  
WARNING: Rework worksheet, add-  
ing the space of the adjoining  
unconfined space. The combined spaces  
must have enough fresh air to supply all  
appliances in both spaces.  
Figure 2 -Ventilation Air from Inside Building  
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5
VENTILATION AIR  
Ventilation Air From Outdoors  
Provide extra fresh air by using  
ventilation grills or ducts: You must  
provide two permanent openings: one  
within 12" of the ceiling and one within  
12" of the floor.  
Connect these items directly to the  
outdoors or spaces open to the outdoors.  
These spaces include attics and crawl  
spaces. Follow the National Fuel Gas  
Code NFPA 54/ANS Z223.1, Section 5.3.  
Air for Combustion and Ventilation for  
required size of ventilation grills or ducts.  
IMPORTANT: Do not provide openings  
for inlet or outlet air into attic if attic has  
a
thermostat-controlled power vent.  
Figure 3 -Ventilation Air from Outdoors  
Heated air entering the attic will activate  
the power vent.  
INSTALLATION  
*A CSA/AGA design-certified equip-  
ment shutoff valve with 1/8" NPT  
tap is an acceptable alternative to  
test gauge connection. Purchase the  
optional CSA/AGA design certified  
equipment shutoff valve from your  
dealer. See Accessories, page 17.  
NOTICE: This heater is  
CAUTION: This heater  
creates warm air currents.  
These currents move heat  
intended for use as supplemental  
heat. Use this heater along with  
your primary heating system. Do  
not install this heater as your  
primary heat source. If you have  
a central heating system, you  
may run system’s circulating  
blower while using heater. This  
will help circulate the heat  
throughout the house. In the  
event of a power outage, you can  
use this heater as your primary  
heat source.  
to wall  
heater. Installing  
next to vinyl or cloth wall  
c o v e r i n g s o r o p e r a t i n g  
surfaces next to  
heater  
LOCATING HEATER  
heater where impurities (such as  
tobacco smoke, aromatic candles,  
cleaning fluids, oil or kerosene  
lamps, etc.) in the air exist may  
discolor walls.  
This heater is designed to be  
mounted on a wall. You can locate  
heater on floor, away from a wall.  
An optional floor mounting stand is  
needed. Purchase  
the  
floor  
mounting stand from your dealer.  
See Accessories, page 17.  
For convenience and efficiency,  
install heater  
WARNING: Never install  
the heater  
WARNING: A qualified  
service person must install  
heater. Follow all local codes.  
in a bedroom or bathroom.  
in a recreational vehicle.  
where curtains, furniture,  
clothing, or other flammable  
objects are less than 36 inches  
from the front, top, or sides of  
the heater.  
where there is easy access for  
operation, inspection, and service  
in coldest part of room  
CHECK GAS TYPE  
Use only Propane/LP gas. If your  
gas supply is not Propane/LP, do not  
install heater. Call dealer where you  
bought heater for proper type heater.  
INSTALLATION NEEDS  
An optional fan kit is available from  
your dealer. See Accessories,  
page 17. If planning to use fan,  
locate heater near an electrical  
outlet.  
as a fireplace insert.  
in high traffic areas.  
in windy or drafty areas.  
Before installing heater, make sure  
you have the items listed below.  
piping (check local codes)  
sealant (resistant to Propane/LP gas)  
equipment shutoff valve*  
ground joint union  
CAUTION: If you install the  
heater in a home garage  
heater pilot and burner must  
be at least 18 inches above  
floor.  
test gauge connection*  
sediment trap  
locate heater where moving  
vehicle will not hit it.  
tee joint  
pipe wrench  
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6
INSTALLATION  
WARNING: Maintain the  
minimum clearances shown  
in Figure 4. If you can,  
provide greater clearances from  
floor, ceiling, and joining wall.  
FASTENING HEATER TO WALL  
Mounting Bracket  
Attaching to Wall Anchor: This  
method allows you to attach  
mounting bracket to hollow walls  
(wall areas between studs) or to  
solid walls (concrete or masonry).  
The mounting bracket is located  
on back panel of heater (see  
Figure 6). It has been taped there  
for shipping. Remove mounting  
bracket from back panel.  
Decide which method better suits  
your needs. Either method will provide  
a
secure hold for the mounting  
bracket.  
Marking Screw Locations  
1. Tape mounting bracket to wall  
where heater will be located.  
Make sure mounting bracket is  
level.  
Figure 6 -Mounting Bracket  
Location  
WARNING:  
Maintain  
minimum clearances shown in  
Figure 8. If you can, provide  
greater clearances from floor  
and joining wall.  
Removing Lower Front Panel Of  
Heater  
1. Remove two screws near bottom  
corners of lower front panel.  
2. Pull bottom of lower front panel  
forward, then down (see Figure 7).  
Figure 4 -Mounting Clearances As  
View From Front Of Heater  
IMPORTANT: Vent-free  
heaters add moisture to the  
air. Although this is beneficial,  
installing heater in rooms  
without enough ventilation air  
2. Mark screw locations on  
wall. (see Figure 8)  
Note: Only mark last hole on  
each end of mounting bracket.  
Insert mounting screws through  
these holes only.  
may cause mildew to  
form  
from too much moisture. See  
Fresh Air for Combustion and  
Ventilation, pages 4 and 5.  
3. Remove tape and mounting  
bracket from wall.  
5 8  
INSTALLING THERMOSTAT  
SENSING BULB  
For T-Stat Models Only  
1. Pull out the sensing bulb from the  
two clips located in the shippng  
position according to the direction  
as shown by the arrow. There is no  
need to take out the two bulb clips.  
2. Take out the bulb clip from the  
hardware package and insert it into  
the square hole and then insert the  
sensing bulb into the bulb clip (see  
Figure 5).  
Figure 7 - Removing Lower Front  
Panel Of Heater  
Methods For Attaching Mounting  
Bracket To Wall  
Model ML300HBA ML300TBA  
Only use last hole on each end  
of mounting bracket to attach  
bracket to wall. These two holes  
are 16 inches apart from center.  
Attach mounting bracket to wall  
only in one of two ways:  
1. Attaching to wall stud  
2. Attaching to wall anchor  
Attaching to Wall Stud: This method  
provides the strongest  
hold. Insert  
mounting screws through mounting  
bracket and into wall studs.  
Model ML200HBA ML200TBA  
Figure 5 - Moving Thermostat  
Sensing Bulb  
Figure 8 - Mounting Bracket  
Clearances  
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7
INSTALLATION  
Attaching Mounting Bracket to  
Wall  
IMPORTANT: Do not  
hammer  
key! For thick walls  
(over 1/2" thick) or solid walls,  
do not pop open wings.  
Note: Wall anchors, mounting  
screws, and spacers are in  
hardware package. The hardware  
package is provided with heater.  
Attaching to Wall Stud Method  
For attaching mounting bracket to  
wall studs  
Figure 12 - Installing Bottom  
Mounting Screws  
1. Drill holes at marked locations  
using 9/64" drill bit.  
2. Place mounting bracket onto  
wall. Line up last hole on each  
end of bracket with holes drilled  
in wall.  
3. Insert mounting screws through  
bracket and into wall studs.  
4. Tighten screws until mounting  
bracket is firmly fastened to  
wall studs.  
Attaching to Wall Anchor  
Method  
For attaching mounting bracket to  
hollow walls (wall areas between  
studs) or solid walls (concrete or  
masonry)  
1. Drill holes at marked locations  
using 5/16" drill bit. For solid  
walls (concrete or masonry),  
drill at least 1" deep.  
2. Fold wall anchor as shown in  
Figure 9 below.  
2. Mark  
wall.  
screw locations on  
Figure 10 - Popping Open Anchor  
Wing For Thin Walls  
3. Remove heater from mounting  
bracket.  
5. Place mounting bracket onto  
wall. Line up last hole on  
each end of bracket with wall  
anchors.  
6. Insert mounting screws through  
bracket and into wall anchors.  
7. Tighten screws until mounting  
bracket is firmly fastened to  
wall.  
4. If installing bottom mounting  
screws into hollow or solid wall,  
install wall anchors. Follow steps  
1 through 4 under Attaching  
To Wall Anchor Method. If  
installing  
screw into  
bottom mounting  
wall stud, drill  
holes at marked locations  
using 9/64" drill bit.  
Placing Heater On Mounting  
5. Replace heater onto mounting  
bracket.  
Bracket  
1. Locate two horizontal slots on  
back panel of heater (see  
Figure 11).  
2. Place heater onto mounting  
bracket. Slide horizontal slots  
6. Place  
spacers  
between’  
bottom mounting holes and  
wall anchor or drilled holes.  
7. Hold spacer in place with one  
hand. With other hand, insert  
onto stand-out  
mounting bracket.  
tabs  
on  
mounting  
screw  
through  
bottom mounting hole and  
spacer. Place tip of screw in  
opening of wall anchor or  
drilled holes.  
8. Tighten both screws until heater  
is firmly secured to wall. Do  
not over tighten.  
Note: Do not replace lower front  
panel at this time. Replace lower  
front panel after making gas  
connections and checking for  
leaks(see page 10) .  
Figure 9 - Folding Anchor  
Figure 11 - Mounting Heater Onto  
Mounting Bracket  
3. Insert wall anchor (wings  
first) into hole. Tap anchor  
flush to wall.  
Installing Bottom Mounting  
Screws  
1. Locate two bottom mounting  
holes. These holes are near  
4. For thin walls (1/2" or less),  
insert red key into wall  
anchor. Push red key to  
"pop" open anchor wings  
(see Figure 10).  
bottom on  
back panel of  
heater(see Figure 12).  
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8
INSTALLATION  
CONNECTING TO GAS SUPPLY  
WARNING: qualified  
A
service person must connect  
heater to gas supply. Follow all  
local codes.  
WARNING: This appliance  
requires a 3/8" NPT (National  
Pipe Thread) inlet connection  
to the pressure regulator.  
CAUTION: Never connect  
heater directly to  
the  
propane/LP supply. This heater  
requires an external regulator  
(not supplied). Install the  
external regulator between the  
heater and propane/LP supply.  
From External  
LP Gas Regulator  
The installer must supply an  
external regulator. The external  
regulator will reduce incoming gas  
pressure. You must reduce  
incoming gas pressure to between  
11 and 14 inches of water. If you  
do not reduce incoming gas  
pressure, heater regulator damage  
could occur. Install external  
regulator with the vent pointing  
down as shown in Figure 13.  
Pointing the vent down protects it  
from freezing rain or sleet.  
*A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is  
an acceptable alternative to test gauge connection. Purchase the optional  
CSA/AGA design-certified equipment shutoff valve from  
your dealer. See Accessories, page 17.  
Apply pipe joint sealant lightly to  
CAUTION: Use only new,  
male threads. This will prevent  
black iron or steel pipe.  
excess sealant from going into  
Internally-tinned copper tubing  
pipe. Excess sealant in pipe could  
may be used in certain areas.  
Check your local codes. Use pipe  
result in clogged heater valves.  
of large enough diameter to  
allow proper gas volume to heater.  
CAUTION: Use pipe joint  
sealant that is resistant to  
liquid petroleum (LP) gas.  
If  
pipe  
is  
too  
small,  
undue loss of pressure will occur.  
Install sediment trap in supply line  
Typical Inlet Pipe Diameters  
All models up to 20,000 BTU’s use as shown in Figure 14. Locate  
3/8’’ or greater pipe;  
sediment trap where it is within  
All models 25,000 BTU’s and higher,  
use 1/2” or greater pipe.  
reach  
sediment  
for cleaning. Locate  
trap where trapped  
Installation must include an  
equipment shutoff valve, union,  
and plugged 1/8" NPT tap. Locate  
NPT tap within reach for test gauge  
hook up. NPT tap must be  
upstream from heater (see Figure  
14).  
matter is not likely to freeze. A  
sediment trap traps moisture and  
contaminants. This keeps them  
from going into heater controls. If  
sediment trap is not installed or is  
installed wrong, heater may  
not run properly.  
Figure 13 - External Regulator with  
Vent Pointing Down  
IMPORTANT: Install an equipment  
shutoff valve in an accessible  
location. The equipment shutoff  
valve is for turning on or shutting  
off the gas to the appliance.  
IMPORTANT:  
Hold pressure  
regulator with wrench when  
connecting it to gas piping and/or  
fittings.  
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9
INSTALLATION  
OPERATING YOUR HEATER  
Pressure Testing Heater Gas  
Connections  
THERMOSTAT MODELS  
CHECKING GAS  
CONNECTIONS  
FOR YOUR SAFETYꢀ  
READ BEFORE LIGHTING  
WARNING: Test all gas  
1. Open equipment shutoff valve  
(see Figure 15).  
2. Open propane/LP supply tank  
valve.  
piping and connections for leaks after  
installing or servicing. Correct all  
leaks at once.  
WARNING: If you do not  
follow  
exactly, a fire or explosion may  
result causing property  
these  
instructions  
3. Make sure control knob of  
heater is in the OFF position.  
4. Check all joints from equipment  
shutoff valve to control valve  
(see Figure 16 ). Apply mixture of  
liquid soap and water to gas  
joints. Bubbles forming show  
a leak.  
5. Correct all leaks at once.  
6. Light heater (see Operating  
Heater, pages 10 and 11 for  
thermostat models or page 12  
for non-thermostat models).Check  
the rest of the internal joints for  
leaks.  
WARNING: Never use an open  
flame to check for a leak. Apply  
mixture of liquid soap and water  
to all joints. Bubbles forming  
show a leak. Correct all leaks at  
once.  
a
damage, personal injury or  
loss of life.  
A. When lighting the pilot, follow ,  
these instructions exactly.  
Pressure Testing Gas Supply  
Piping System  
Test Pressures In Excess Of  
1/2 PSIG (3.5 K Pa)  
B. BEFORE LIGHTING smell all  
around the appliance area for  
gas. Be sure to smell next to  
the floor because some gas is  
heavier than air and will settle  
on the floor .  
1. Disconnect appliance with its  
appliance  
main  
gas valve  
(control valve) and equipment  
shutoff valve from gas supply  
piping system. Pressures in  
excess of 1/2 psig will damage  
heater regulator.  
WHAT TO DO IF YOU SMELL GAS  
Do not try to light any appliance.  
Do not touch any electric switch;  
do not use any phone in your  
building.  
7. Turn off heater (see To Turn Off  
Gas To Appliance, page 11 for  
thermostat models or page  
12 for non-thermostat models).  
8. Replace lower front panel.  
2. Cap off open end of gas pipe  
where equipment shutoff valve  
was connected.  
Immediately  
supplier from  
phone. Follow  
supplier’s instructions.  
If you cannot reach your  
gas supplier, call the fire  
department.  
call  
a
your gas  
neighbor’s  
the  
3. Pressurize  
supply  
piping  
gas  
system by either using  
compressed air or opening  
propane/LP supply tank valve.  
4. Check all joints of gas supply  
piping system. Apply mixture of  
liquid soap and water to gas  
joints. Bubbles forming show  
a leak.  
5. Correct all leaks at once.  
6. Reconnect heater and equipment  
shutoff valve to gas supply. Check  
reconnected fittings for leaks.  
C. Use only your hand to push in  
or turn the gas control knob.  
Never use tools. If the knob  
will not push in or turn by  
hand, don’t try to repair it, call  
a qualified service technician or  
gas supplier. Force or attempted  
repair may result in a fire or  
explosion.  
Figure 15 -Equipment Shutoff Valve  
Test Pressures Equal To or  
Less Than 1/2 PSIG (3.5 K Pa)  
1. Close equipment shutoff valve  
(see Figure 15).  
2. Pressurize supply piping system  
by either using compressed air  
or opening propane/LP supply  
tank valve.  
3. Check all joints from gas meter to  
equipment shutoff valve (see  
Figure 16).Apply mixture of liquid  
soap and water to gas joints.  
Bubbles forming show a leak.  
4. Correct all leaks at once.  
D. Do not use this appliance if any  
part has been under water.  
Immediately call  
a
qualified  
service technician to inspect  
the appliance and to replace  
any part of the control system  
and any gas control which has  
been under water.  
Figure 16 -Checking Gas Joints  
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1 0  
OPERATING YOUR HEATER  
THERMOSTAT MODELS  
LIGHTINGꢀ  
7. Keep control knob pressed in  
for thirty (30) seconds after  
This increases or decreases the  
burner flame height. At times the room  
may exceed the set temperature. If so,  
the burner will shut off. The burner  
will cycle back on when room tem-  
INSTRUCTIONS  
lighting  
pilot.  
After  
30  
1. STOP! Read  
the safety  
seconds, release control knob.  
If control knob does not pop  
up when released, contact a  
qualified service person or  
gas supplier for repairs.  
information on the side of  
heater.  
2. Check that gas supply to  
heater is on.  
3. Push in gas control knob  
slightly and turn clockwise to the  
OFF position.  
perature drops  
temperature. The  
below the set  
control knob can  
be set to any heat level between HI  
and LO. Selecting the HI setting will  
cause the burner to remain fully on  
without modulating down in most cases.  
NOTE: If pilot goes out, repeat  
steps 3 through 7. Wait one (1)  
minute before lighting pilot again  
8. Turn  
control  
knob  
to  
NOTE: knob cannot be turned from  
“PILOT” to “OFF” unless knob is  
pushed in slightly. Do not use  
force.  
counterclockwise  
NOTE: the thermostat sensing bulb  
measures the temperature of air near  
the heater cabinet. This may not al-  
ways agree with room temperature  
(depending on housing construction.  
installation location, room size, open  
air temperatures, etc.), frequent use  
of your heater will let you determine  
desired heating Level. The  
main burner should light. Set  
control knob to any heat level  
between HI and LO.  
4. Wait five (5) minutes to clear  
out any air. Then smell for  
gas, including near the floor.  
CAUTION: Do not try to  
adjust heating levels by using  
the equipment shutoff valve.  
If  
you  
smell gas, STOP!  
in the safety  
your  
own  
comfort  
levels.  
Follow “B”  
information on the side of the  
heater. If you do not smell  
gas, go to the next step.  
TO TURN OFF ꢀ  
GAS TO APPLIANCE  
5. Push  
slightly  
counterclockwise  
in gas control knob  
Shutting Off Heater  
1. Turn control knob clockwise  
to the OFF position.  
and  
turn  
to  
Figure 17 - Control Knob In The  
OFF Position  
“PILOT/IGN” and depress for  
five(5) seconds  
2. Turn off all electric power to  
the appliance if service is to  
be performed.  
SHUTTING OFF BURNER ONLY  
(PILOT STAYS LIT)  
NOTE: You may be running this  
heater for the first time after hooking  
up to gas supply. If so, the control  
knob should be depressed for about  
thirty (30) seconds. This will allow  
air to bleed from the gas system.  
Turn control knob clockwise  
to the PILOT/IGN position.  
MANUAL LIGHTINGꢀ  
PROCEDURE  
1. Remove lower front panel (see  
6. With control knob pressed in,  
push down and release the  
ignitor button. This will light  
pilot. If needed, keep pressing  
ignitor button until pilot lights.  
Figure 18 - Pilot  
Figure 7 page 7).  
2. Follow steps  
1
through 5  
THERMOSTAT ꢀ  
CONTROL OPERATION  
under Lighting Instructions.  
3. With control knob pressed in,  
strike match. Hold match to  
pilot until pilot lights.  
NOTE: If pilot does not stay lit,  
refer to Troubleshooting, pages  
14 through 16. Also contact a  
qualified service person or gas  
supplier for repairs. Until repairs  
are made, light pilot with match.  
To light pilot with match, see  
Manual Lighting Procedure.  
The thermostatic control used on  
these models differs from standard  
thermostats. Standard thermostats  
simply turn on and off the burner.  
The thermostat used on this heater  
senses the room temperature. The  
thermostat adjusts the amount  
4.  
Keep control knob pressed in  
for 30 seconds after lighting  
pilot. After 30 seconds, release  
control knob. Follow step 8  
under Lighting Instructions.  
of gas flow to the  
burner.  
5. Replace lower front panel.  
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1 1  
OPERATING YOUR HEATER  
6. With control knob pressed in,  
push down and release the  
ignitor button. This will light  
pilot. if needed, keep pressing  
ignitor button until pilot lights.  
7. Keep control knob depressed  
for ten(10) seconds after  
lighting pilot. If pilot goes out,  
repeat steps 5,6 and 7.  
LIGHTINGꢀ  
INSTRUCTIONS  
NON-THERMOSTAT MODELS  
FOR YOUR SAFETYꢀ  
READ BEFORE LIGHTING  
1.  
STOP!  
Read  
the  
safety  
information, on the side of  
heater.  
Make sure equipment shutoff  
valve is fully open.  
Push in control knob slightly  
and turn clockwise  
2.  
3.  
WARNING: If you do not follow  
these instructions exactly, a fire or  
explosion may result  
causing  
property damage, personal injury or  
loss of life.  
to the  
8. To select the desired heating  
level, partially press down the  
control knob slightly and rotate  
OFF position (see Figure 19).  
4. Wait five minutes to clear out  
any gas. Then smell for gas,  
including near the floor. If you  
smell gas.STOP! Follow "B"in the  
safety information on the side of  
heater. If you can’t smell gas, go  
to the next step.  
A. When lighting the pilot, follow these  
instructions exactly.  
counterclockwise  
. Release  
the downward pressure on the  
knob while continuing to turn  
until the knob locks at the  
desired setting position. Do not  
B.  
BEFORE LIGHTING smell all  
around the appliance area for gas.  
Be sure to smell next to the floor  
because some gas is heavier than  
air and will settle on the floor.  
operate between  
positions.  
locked  
5.  
Push in and turn control knob  
counterclockwise to PILOT  
position. Press in control knob  
for five(5) seconds.  
WHAT TO DO IF YOU SMELL GAS  
TO TURN OFFꢀ  
GAS TO APPLIANCE  
Note: You may be running  
this heater for the first time  
after hooking up to gas supply.  
If so, you may need to press  
in control knob for 30 seconds.  
This will allow air to bleed from  
the gas system.  
Do not try to light any  
appliance.  
Do not touch any electric  
switch; do not use any phone  
in your building.  
Shutting Off Heater  
1. Turn control knob clockwise  
to the OFF position.  
2. Turn off all electric power to the  
appliance if service is to  
be performed.  
Immediately call your gas  
supplier from a neighbor’s  
phone. Follow the gas  
supplier’s instructions.  
Shutting Off Burner Only (pilot  
stays lit )  
Slightly press in control, turn  
control knob clockwise  
PILOT position.  
if you cannot reach your gas  
to the  
supplier,  
call  
the  
fire  
department.  
MANUAL LIGHTINGꢀ  
C. Use only your hand to push in  
or turn the gas control knob.  
Never use tools. If the knob will  
not push in or turn by hand, don’t  
try to repair it , call a qualified  
service technician or gas supplier.  
Force or attempted repair may  
result in a fire or explosion.  
D. Do not use this appliance if any  
part has been under water.  
Immediately call a qualified service  
technician to inspect the  
appliance and to replace any part of  
the control system and any gas  
control which has been under water.  
PROCEDURE  
1. Remove lower front panel (see  
Figure 7 page 7)  
2. Follow steps 1 through 5  
under Lighting Instructions .  
Figure 19 - Control Knob in The  
OFF Position  
3.  
With control knob pressed  
in, strike match. Hold match to  
pilot until pilot lights.  
4. Keep control knob pressed in  
for 30 seconds after lighting  
pilot . After 30 seconds, release  
control knob. Follow step 8 under  
Lighting Instructions.  
5. Replace lower front panel.  
Figure 20 - Pilot  
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1 2  
CLEANING BURNER  
PILOT AIR INLET HOLE  
WARNING: If yellow tipping  
occurs, your heater could  
produce increased levels of  
carbon monoxide. If burner  
flame pattern shows yellow  
tipping, follow instructions at  
bottom of this page.  
INSPECTING BURNER  
Check pilot flame pattern and  
We recommend that you clean the  
unit every 2,500 hours of operation or  
every three months. We also  
recommend that you keep the burner  
tube and pilot assembly clean and  
free of dust and dirt. To clean these  
parts we recommend using com-  
pressed air no greater than 30 PSl.  
Your local computer store, hard-  
ware store. or home center may  
carry compressed air in a can. You  
can use a vacuum cleaner in the  
blow position. If using compressed  
air in a can, please follow the direc-  
tions on the can. If you don’t follow  
directions on the can, you could  
damage the pilot assembly.  
burner flame pattern often.  
PILOT FLAME PATTERN  
Figure 21 shows a correct pilot  
flame pattern. Figure 22 shows an  
incorrect pilot flame pattern. The  
incorrect pilot flame is not touching  
thermocouple. This will cause the  
thermocouple to cool. When the  
thermocouple cools, the heater will  
shut down. If pilot flame pattern is  
incorrect, as shown in Figure 22.  
Notice: Do not mistake orange  
flames with yellow tipping. Dirt  
or other fine particles enter the  
heater and burn causing brief  
patches of orange flame.  
turn heater off (see To Turn  
Off Gas To Appliance. page 12  
for non-thermostat models or  
page 11 for thermostat models.)  
see Troubleshooting. pages 14  
through 16.  
1.  
Shut off the unit, including the  
pilot. Allow the unit to cool for  
at least thirty minutes.  
Figure 23 - Correct Burner Flame  
Pattern  
2.  
3.  
Inspect burner, pilot for dust  
and dirt.  
Blow air through the ports/slots  
and holes in the burner.  
Also, clean the pilot assembly. A yel-  
low tip on the pilot flame indicates  
dust and dirt in the pilot assembly.  
There is a small pilot air inlet hole  
about two inches from where the pi-  
lot flame comes out of the pilot as-  
sembly (see Figure 25). With the unit  
off, lightly blow air through the air inlet  
hole. You may blow through a drinking  
straw if compressed air is not available.  
Figure 21 - Correct Pilot Flame  
Pattern  
Figure 24 - Incorrect Burner  
Flame Pattern  
CLEANING AND  
MAINTENANCE  
WARNING: Turn off heater  
and let cool before servicing.  
Figure 22 - Incorrect Pilot Flame  
Pattern  
CAUTION: You must keep control  
areas, burner, and circulating air  
passageways of heater clean. In-  
spect these areas of heater before  
each use. Have heater inspected  
yearly by a qualified service person.  
Heater may need more frequent clean-  
ing due to excessive lint from carpeting,  
bedding material, pet hair, etc.  
BURNER FLAME PATTERN  
Figure 23 shows a correct burner  
flame pattern. Figure 24 shows an  
incorrect burner flame pattern. If  
pilot flame pattern is incorrect, as  
shown in Figure 24.  
Figure 25 - Pilot Inlet Air Hole  
CLEANING HEATER CABINET  
Air Passageways  
turn heater off (see To Turn Off  
Gas ToAppliance. page 12 for non-  
thermostat models or page  
11 for thermostat models)  
see Troubleshooting. (pages 14  
through 16)  
Use  
pressurized air to clean.  
Exterior  
Use a soft cloth dampened with  
a
vacuum cleaner or  
CLEANING ODS/PILOT AND  
BURNER  
a mild soap and water mixture.  
Wipe the cabinet to remove dust.  
Use  
a
vacuum cleaner,  
pressurized air or a small, soft  
bristled brush to clean.  
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1 3  
TROUBLESHOOTING  
Note :  
All  
troubleshooting  
CAUTION: Never use a wire,  
needle, or similar object to clean  
ODS/pilot. This can damage  
ODS/pilot unit.  
WARNING: Only a qualified  
service person should service and  
repair heater.  
items are listed in order of  
operation.  
REMEDY  
POSSIBLE CAUSE  
OBSERVED PROBLEM  
1. Replace ignitor.  
1. Ignitor electrode is positioned  
wrong.  
When ignitor button is pressed in,  
there is no spark at ODS/pilot.  
2. Replace ignitor.  
3. Reconnect ignitor cable.  
2. Ignitor electrode is broken.  
3. Ignitor electrode is not connected  
to ignitor cable.  
4. Free ignitor cable if pinched by  
4. Ignitor cable pinched or wet.  
any  
metal or tubing. Keep  
ignitor cable dry.  
5. Replace ignitor cable.  
6. Replace piezo ignitor.  
5. Broken ignitor cable.  
6. Bad piezo ignitor.  
1. Turn on gas supply of open  
equipment shutoff valve.  
1. Gas supply is turned off or  
equipment shutoff valve is closed.  
2. Control knob not fully pressed in  
while pressing ignitor button.  
When ignitor button is pressed in,  
there is a spark at ODS/pilot but no  
ignition.  
2. Fully press in control knob  
while pressing ignitor button.  
3. Continue holding down control  
knob. Repeat igniting operation  
until air is removed.  
3. Air in gas lines when installed.  
4. Clean ODS/pilot (see Cleaning  
and Maintenance. Page 13) or  
replace ODS/pilot assembly  
5. Replace gas regulator.  
6. Turn control knob to pilot position.  
7. Contact local propane/LP gas  
campany.  
4. ODS/pilot is clogged.  
5. Gas regulator setting is not correct.  
6. Control knob not in PILOT position.  
7. Depleted gas supply.  
1. Press in control knob fully.  
2. After ODS/pilot lights, keep control  
knob pressed in 30 seconds.  
1. Control knob is not fully pressed in.  
2. Control knob is not pressed in  
long enough.  
ODS/pilot lights but flame goes out  
when control knob is released.  
3. Fully open equipment shutoff valve.  
3. Equipment shutoff valve is not  
fully open.  
4. Hand tighten until snug, then  
tighten 1/4 turn more.  
4. Thermocouple connection loose  
at control valve.  
5. A) Contact local propane/LP gas  
company.  
5 Pilot flame is not touching  
thermocouple. This allows  
thermocouple to cool, causing pilot  
flame to go out. This problem  
could be caused by one or both  
of the following:  
B) Clean ODS/pilot (see Cleaning  
and Maintenance. Page 13) or  
replace ODS/pilot assembly.  
A) Low gas pressure  
B) Dirty or partially clogged ODS/pilot  
6. Thermocouple damaged.  
7. Control valve damaged.  
6. Replace thermocouple.  
7. Replace control valve.  
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1 4  
TROUBLESHOOTING  
Continued  
REMEDY  
POSSIBLE CAUSE  
OBSERVED PROBLEM  
1. Clean burner orifice (see Cleaning  
and Maintenance, page 13) or  
replace burner orifice.  
1. Burner orifice is clogged.  
Burner(s)does not light after  
ODS/pilot is lit.  
2. Replace burner orifice.  
3. Contact local Propane/LP gas company.  
2. Burner orifice diameter is too small  
3. Inlet gas pressure is too low.  
1. Contact local Propane/LP gas company.  
2. Clean burner (see Cleaning and  
Maintenance, page 13) or replace  
burner orifice.  
1. Manifold pressure is too low.  
2. Burner orifice is clogged.  
Delayed ignition of burner(s).  
1. Clean burner orifice (see Cleaning  
and Maintenance, page 13) or  
replace.  
1. Burner orifice is clogged or  
damaged.  
Burner backfiring during combustion.  
2. Replace burner.  
2. Burner damaged.  
3. Replace gas regulator.  
3. Gas regulator defective.  
1. Check burner for dirt and debris. If  
found, clean burner (see Cleaning  
and Maintenance, Page 13).  
1. Not enough air.  
Yellow flame during burner  
combustion.  
2. Replace gas regulator.  
2. Gas regulator defective.  
3. Contact local propane/LP gas company.  
3. Inlet gas pressure is too low.  
1. Problem will stop after a few hours  
of operation.  
1. Residues from manufacturing  
processes.  
Slight smoke or odor during  
initial operation.  
1. Turn control knob to LO position  
and let warm up for a minute.  
2. Operate burner until air is removed  
from line. Have gas line checked  
by local Propane/LP gas company.  
3. Observe minimum installation  
clearances (Figure 4, p7).  
1. Turning control knob to HI position  
when burner is cold.  
2. Air in gas line.  
Heater produces a whistling noise  
when burner is lit.  
3. Air passageways on heater  
blocked.  
4. Clean burner (see Cleaning and  
maintenance, Page13) or replace  
burner orifice.  
4. Dirty or partially clogged burner  
orifice.  
1. This is common with most  
heaters. If noise is excessive,  
contact qualified service person  
1. Metal expanding while heating or  
contracting while cooling.  
Heater produces a clicking/ticking  
noise just after burner is lit or  
shut off.  
1. Turn heater off when using  
furniture polish, wax, carpet  
cleaner or similar products.  
1. When  
heated, vapors from  
White powder residue forming within  
burner box or on adjacent  
walls or furniture.  
furniture polish, wax, carpet  
cleaners, etc. turn into white  
powder residue.  
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1 5  
TROUBLESHOOTING  
Continued  
WARNING: If you smell gas  
Shut off gas supply.  
Do not try to light any appliance.  
Do not touch any electrical switch; do not use any phone in your building.  
Immediately call your gas supplier from a neighbor’s phone. Follow the gas  
supplier’s instructions.  
If you cannot reach your gas supplier, call the fire department.  
IMPORTANT: Operating heater where impurities in air exist may create odors.  
Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new  
carpet or textiles, etc., create fumes. These fumes may mix with combustion air and  
create odors.  
POSSIBLE CAUSE  
REMEDY  
OBSERVED PROBLEM  
1. Heater burning vapors from  
paint, hair spray, glues, etc.  
(See IMPORTANT statement  
above).  
2. Gas leak. See Warning  
Statement at top of page.  
3. Low fuel supply.  
1. Ventilate room. Stop using odor  
causing products while heater  
is running.  
2. Locate and correct all leaks(see  
Checking Gas Connections,  
page 10).  
Heater produces unwanted odors.  
3. Refill supply tank.  
1. Not enough fresh air is available.  
2. Low line pressure.  
1. Open window and/or door for  
ventilation.  
2. Contact local Propane/LP gas  
company.  
Heater shuts off in use (ODS operates).  
3. ODS/pilot is partially clogged.  
3. Clean ODS/pilot (see Cleaning  
Page 13).  
1. Gas leak. See Warning  
Statement at top of page.  
2. Control valve is defective.  
1. Locate and correct all leaks(see  
Checking Gas Connections,  
Page 10).  
Gas odor even when control knob is  
in OFF position.  
2. Replace control valve.  
1. Foreign matter between control  
valve and burner.  
1. Take apart gas tubing and  
remove foreign matter.  
Gas odor during combustion.  
2. Gas  
leak.  
See Warning  
2. Locate and correct all leaks  
(see Checking Gas Connections,  
Page 10).  
Statement at top of page.  
1. Metal is expanding while heating  
or contracting while cooling.  
1. This is common with most  
heaters. if noise is excessive,  
contact qualified service person.  
Heater produces a clicking/ticking  
noise just after burner is lit or shut off.  
1. Not enough combustion/ventilation  
air.  
1. Refer to Air for Combustion and  
Moisture/condensation noticed on  
windows.  
Ventilation requirements, Page  
4.  
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1 6  
SPECIFICATIONS  
ML200HBA  
10,500/20,000  
Propane/LP Only  
Piezo  
ML300TBA  
14,000/28,000  
Propane/LP Only  
Piezo  
ML200TBA  
ML300HBA  
Btu(available)  
9,000/20,000  
15,000/28,000  
Gas Type  
Propane/LP Only Propane/LP Only  
Ignition  
Piezo  
Piezo  
Pressure Regulator setting  
8" W.C.  
8" W.C.  
8" W.C.  
8" W.C.  
Inlet Gas Pressure *(inches of water)  
Maximum  
14"  
11"  
14"  
11"  
14"  
11"  
14"  
11"  
Minimum  
Dimensions, Inches (HxWxD)  
Heater  
23 1/2 19 1/4 8  
23 1/2 26 5/8 8  
×
×
23 1/2 19 1/4 8  
23 1/2 26 5/8 8  
×
×
×
×
×
×
Carton  
26 1/2 21 3/4 9 1/4  
26 1/2 28 1/2 9 1/4  
×
×
26 1/2 21 3/4 9 1/4 26 1/2 28 1/2 9 1/4  
×
×
×
×
×
×
Weight (pounds)  
Heater  
21  
25  
28  
33  
23  
27  
26  
31  
Shipping  
Note: Dimensions listed are outer most points on the heater (includes control knobs and grill).  
* For purposes of input adjustment.  
ACCESSORIES  
REPLACEMENT PARTS  
Note: Use only original replacement  
parts. This will protect your warranty  
coverage for parts replaced under  
warranty.  
Optional FAN Kit  
Purchase these heater accesso-  
ries from your local dealer. If they  
can not supply these accessories,  
contact PRO-COM for information.  
You can also write to the address  
listed on the front of this manual.  
The optional fan kit, part PF06-YJLF-B  
fits all models noted in this manual.  
The fan has 3 settings ON/OFF/Auto.  
The thermostatically controlled PF06-  
PARTS UNDER WARRANTY  
Contact authorized dealer from  
whom you purchased this product.  
If they are unable to supply original  
replacement part(s), call the  
number on the front of this manual .  
When contacting your dealer or  
PRO-COM, have ready:  
YJLF-B improves heater efficiency and  
includes installation and operating  
instructions.  
your name  
your address  
model and serial numbers of  
your heater  
EQUIPMENT SHUTOFF VALVE  
For all models. Equipment shutoff  
valve with 1/8" NPT tap.  
how heater was malfunctioning  
type of gas used (propane/LP or  
natural gas)  
purchase date  
warranty card  
Usually, we will ask you to return the  
defective part to the factory.  
PARTS NOT UNDER  
WARRANTY  
FLOOR MOUNTING STAND  
Contact authorized dealers of  
this product. If they can’t supply  
original replacement part(s), contact  
PRO-COM’S phone number (877)  
886-5989.  
For locating heater on the floor,  
away from a wall. Complete installa-  
tion instructions provided with floor  
mounting stand.  
FAN PF06-YJLF-B  
TECHNICALSERVICE  
You may have further questions  
about installation, operation, or  
troubleshooting. If so, contact  
PRO-COM’S phone number (877)  
886-5989.  
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1 7  
ILLUSTRATED  
PARTS BREAKDOWN  
THERMOSTAT MODELS  
ML200TBA ML300TBA  
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1 8  
This list contains replaceable parts for your heater. When ordering replacement  
parts, follow the instructions listed under Replacement Parts on page 17 of this  
manual.  
PARTS LIST  
THERMOSTAT  
MODELS  
ML200TBA, ML300TBA  
ML200TBA  
PART NO.  
KEY  
NO.  
ML300TBA  
PART NO.  
QTY.  
DESCRIPTION  
Cabinet Assembly  
Lower Front Panel Assembly  
Reflector Unit  
MB10005  
MB09002  
MB11004  
1
1
1
1
1
1
16  
1
2
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
24-1  
24-2  
25  
26  
27  
28  
29  
MB10002  
MB09001  
MB11002  
Glass  
ML086-02  
ML087-02  
ML088-02  
ML069-02  
SIT545-130  
845-4.8x60Z  
ML111-01  
ML083-03  
ML073-01  
NRV81FI-8  
96-4Z  
ML079-01  
MB40006  
MB40022  
MB40023  
NBB20-000B1  
ML101-01  
ML091-12  
ML103-01  
ML104-01  
ND1908x800x9  
ND0803-8  
ND0807-B2  
ML105-01  
6170-5Z  
ML086-01  
ML087-01  
ML088-01  
ML069-02  
SIT545-175  
845-4.8x60Z  
ML111-01  
ML083-03  
ML073-01  
NRV81FI-8  
96-4Z  
ML079-01  
MB40006  
MB40022  
MB40023  
NBB30-000B1  
ML101-01  
ML091-07  
ML103-01  
ML104-01  
ND1908x800x9  
ND0803-8  
ND0807-B2  
ML105-01  
6170-5Z  
Upper Glass Retainer  
Lower Glass Retainer  
Self Tapping Screw  
Thermostat Valve Assembly  
Screws  
Thermostat Valve Base  
Ignitor Assembly  
Ignitor Line  
Pressure Regulator  
Washer  
Self Locking Screw  
Main Inlet Tube Assembly  
ODS Line Assembly  
Burner Inlet Tube Assembly  
Burner  
Burner Connector  
Injector  
Left Burner Support Bracket  
Right Burner Support Bracket  
ODS  
Thermocouple  
Ignitor Electrode  
ODS Upper Deflector  
NUT  
Grill Guard  
Middle Panel  
MB29002  
ML084-02  
ML060-01  
MB29001  
ML084-01  
ML060-01  
Mounting Bracket  
PARTS AVAILABLE NOT SHOWN  
Hardware Kit  
CSA/AGA Label  
Gas Instruction Decal  
Inside Warning Label  
Thermostat Sensing Bulb Clip  
MB28001  
ML070-22  
ML071-02  
ML072-01  
ML065-01  
MB28001  
ML070-24  
ML071-02  
ML072-01  
ML065-01  
1
1
1
1
2
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1 9  
ILLUSTRATED PARTS  
BREAKDOWN  
NON-THERMOSTAT MODELS  
ML200HBA ML300HBA  
ODS/Pllot Assembly  
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PARTS LIST  
ML200HBA  
ML300HBA  
This list contains replaceable parts for your heater. When ordering replacement  
parts, follow the instructions listed under Replacement Parts on page 17 of this  
manual.  
ML200HBA  
ML300HBA  
KEY  
NO.  
PART NO.  
PART NO.  
QTY  
DESCRIPTION  
MB10005  
MB09002  
MB11004  
ML086-02  
ML087-02  
ML084-02  
ML088-02  
ML069-02  
NV2020-14  
ML073-01  
MB16002  
ML029-01  
NRV81FI-8  
96-4Z  
ML079-01  
MB40016  
MB40018  
MB40019  
MB40020  
MB40021  
ML096-01  
MB40017  
NBB20-000B1  
ML101-01  
ML091-12  
ML103-01  
ML104-01  
ND1908x800x9  
ND0803-8  
ND0807-B2  
ML105-01  
6170-5Z  
1
2
3
4
5
6
7
8
9
MB10003  
MB09001  
MB11002  
ML086-01  
ML087-01  
ML084-01  
ML088-01  
ML069-02  
NV2020-14  
ML073-01  
MB16002  
ML029-01  
NRV81FI-8  
96-4Z  
ML079-01  
MB40016  
MB40018  
MB40019  
MB40020  
MB40021  
ML096-01  
MB40017  
NBB30-000B1  
ML101-01  
ML091-07  
ML103-01  
ML104-01  
ND1908x800x9  
ND0803-8  
ND0807-B2  
ML105-01  
6170-5Z  
1
1
1
1
1
1
1
16  
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
Cabinet Assembly  
Lower Front Panel Assembly  
Reflector Unit  
Glass  
Upper Glass Retainer  
Middle Panel  
Lower Glass Retainer  
Self Tapping Screw  
Control Valve  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
28-1  
28-2  
29  
30  
31  
32  
33  
Ignitor Line  
Control Knob Assembly  
Control Valve Fixed Nut  
Pressure Regulator  
Washer  
Self Locking Screw  
Main Inlet Tube Assembly  
ODS Line Assembly  
Lower Gas Outline Tube Assembly  
Medium Gas Outline Tube Assembly  
High Gas Outline Tube Assembly  
4-Way Connector  
Burner Inlet Tube Assembly  
Burner  
Burner Connector  
Injector  
Left Burner Support Bracket  
Right Burner Support Bracket  
ODS/pilot Assembly  
Thermocouple  
Ignitor Electrode  
ODS Upper Deflector  
NUT  
Grill Guard  
lgnitor Assembly  
MB29002  
ML083-03  
ML060-01  
MB29001  
ML083-03  
ML060-01  
Mounting Bracket  
PARTS AVAILABLE NOT SHOWN  
Hardware Kit  
CSA/AGA Label  
Gas Instruction Decal  
Inside Warning Label  
MB28001  
ML070-16  
ML071-02  
ML072-01  
MB28001  
ML070-18  
ML071-02  
ML072-01  
1
1
1
1
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2 1  

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