INFRARED 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
l Do not try to light any appliance.
l Do not touch any electrical switch; do not
use any phone in your building.
l Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
ML150HPA
ML250HPA
ML150TPA
ML250TPA
Table of Contents
Important Safety Information.................................2
Product Features.....................................................3
Proper Ventilation & Fresh Air..............................4
Installation................................................................6
Operating Your Heater............................................10
Cleaning & Maintenance.......................................13
Trouble Shooting...................................................14
Specifications..........................................................17
Parts List..................................................................19
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.
WARNING: This is an unvented gasfired 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 Combustion and Ventilation section on page 4
of this manual.
CONTINENTAL APPLIANCE INC/U.S. OFFICE
5 Musick 4600 Highlands Parkway S.E.
Irvine Suite # D/E
CA 92618 Smyrna, GA 30080
Nanjing PRO-COM Electric Appliance Co.,Ltd.
#6 Chuangye Road,High New Tech.Zone,
Great Bridge Road North,Nanjing,210061,
China.
l 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.
WARNING: Improper installation,
adjustment, alteration, service or maintenance 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.
This appliance may be installed in an aftermarket* 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.
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM
HEATERS
Water vapor is a by-product of gas combustion.An
unvented room heater productes approximately one (1)
ounce (30ml) of water for every 1,000 BTU’s (.3KW’s) of
gas input per hour. Refer to page 3.
*Aftermarket: Completion of sale, not for purpose of
resale, from the manufacturer.
Installer: Please leave these instructions with the
consumer.
Consumer: Please retain these instructions for
future use.
TOLL FREE NUMBER: 1-877-886-5989
PR-ML062-12-0803
IMPORTANT
SAFETY INFORMATION
IMPORTANT: Read this
owner’s manual carefully and
completely before trying to
assemble, operate, or service
this heater. Improper use of
this heater can cause serious
injury or death from burns,
fire, explosion, electrical
shock, and carbon monoxide
poisoning.
WARNING: Do not use any
accessory not approved for
use with this heater.
WARNING: Any change to
this heater or its controls can
be dangerous.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Due to high temperatures, heater
should be kept out of
traffic and away from furniture
and draperies.
Surface of heater becomes
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater will
remain hot for a time after shut
down. Allow surface to cool
before touching.
Carefully supervise young
children when they are in the
same room with heater.
Make sure grill guard is in
place before running the heater.
Keep the appliance area clear
and free from combustible
materials, gasoline, and other
flammable vapors and liquids.
State of Massachusetts: The
installation must be made by a licensed plumber or gas fitter in the
Commonwealth of Massachusetts.
Sellers of unvented propane or natural gas-fired supplemental room heaters shall provide to each purchaser a
copy of 527 CMR 30 upon sale of the
unit.
In the state of Massachusetts, unvented
propane or nature gas-fired space heaters shall be prohibited in bedrooms
and bathrooms.
WARNING
Modeles ML150HPA, ML150TPA,
ML250HPA, ML250TPA are equipped
for propane gas. Field conversion is
not permitted.
1. 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.
2. Do not place propane/LP
supply tank(s) inside any
structure. Locate propane/LP
supply tank(s) outside.
3. If you smell gas
l Shut off gas supply.
l Do not try to light any appliance.
l Do not touch any electrical switch,
do not use any phone in your
building.
l Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
l If you cannot reach your gas
supplier, call the fire department.
4. This heater shall not be
installed in a bedroom or
bathroom
5. Always run heater with control
knob at LOW or HIGH locked
positions. Never set control
knob between locked positions.
Poor combustion and higher
levels of carbon monoxide may
result.
6. This heater needs fresh,
outside air ventilation to run
properly. This heater has an
Oxygen Depletion Sensor
(ODS) safety shutoff system.
The ODS shuts down the
heater if not enough fresh air
is available. See Fresh Air for
Combustion and Ventilation
pages 4 and 5.
7. Keep all air openings in front
and bottom of heater clear
and free of debris. This will
insure enough air for proper
combustion.
8. If heater shuts off. Do not
relight until you provide fresh,
outside air. If heater keeps
shutting off, have it serviced.
9. Do not operateT
l where flammable liquids or va pors are used or stored
l under dusty conditions
2
10. Before using furniture polish,
wax, carpet cleaner, or similar
products, turn heater off. If
heated, the vapors from these
products may create a white
powder residue within burner
box or on adjacent walls or
furniture.
11. Do not use heater if any part
has been under water.
Immediately call a qualified
service technician to inspect
the room heater and to
replace any part of the control
system and any gas control
which has been under water.
12. Turn off heater and let cool
before servicing. Only a qualified
service person should service
and repair heater.
13. Operating heater above
elevations of 4,500 feet could
cause pilot outage.
14. To prevent performance
problems, do not use
propane/LP fuel tank of less
than 100 lbs. capacity.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning:
Early signs of carbon monoxide
poisoning resemble the flu with
headaches, dizziness, or nausea.
If you have these signs, the heater
may not be working properly. Get
fresh air at once! Have heater
serviced. Some people are more affected by carbon monoxide than
others. These include pregnant
women, persons with heart or lung
disease or anemia, those under the
influence of alcohol, and those
at high altitudes.
Propane/LP Gas: Propane/LP gas
is odorless. An odor-making agent
is added to Propane/LP gas. The
odor helps you detect a
Propane/LP gas leak . However,
the odor added to Propane/LP gas
can fade. Propane/LP gas may be
present even though no odor exists.
Make certain you read and understand
all warnings. Keep this manual for
reference. It is your guide to safe and
proper operation of this heater.
PRODUCT FEATURES
Figure1-Vent-Free Propane/LP Gas Heater
SAFETY DEVICE
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.
PIEZO IGNITION SYSTEM
This heater is equipped with a piezo ignitor.
This system requires no matches, batteries, or
other sources to light heater.
THERMOSTATIC HEAT
CONTROL ON THERMOSTAT
MODELS
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
Water vaporis a by-product of gas combustion.An
unvented room heater productes approximately one (1)
ounce (30ml) of wter for every 1,000 BTU’s (.3KW’s) of
gas input per hour.
Unvented room heaters are recommended as
supplemental heat (a room) rather than a primary heat
source (an entire house) .In most supplemental heat
application, the water vapor does not create a problem.
In most applications, the water vapor enhances the low
humidity atmosphere experience during cold weather.
LOCAL CODES
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 ANSI Z223.1,
also known as NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02269-9101
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.
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 combusion air and
circulation air.
2. If high humidity is experienced, a dehumidifier may
be used to help lower the water vapor content of the
air.
3. Do not use an unvented room heater as the primary
heat source.
3
FRESH AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This heater
shall not be installed in a
confined space or unusually
tight construction unless
provisions are provided for
adequate combustion and
ventilation air. Read the
following instructions to
insure proper fresh air for this
and other fuel-burning
appliances in your home.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from
National Fuel Gas Code. NFPA
54/ANSI 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
The information on pages 4
through 6 will help you classify
your space and provide adequate
ventilation.
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
the outside atmosphere have a
continuous water vapor retarder
with a rating of one perm (6×10
per pa-sec-m2) or less with
openings gasketed or sealed and
b. weather stripping has been
added on openable windows and
doors and
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.
-11
kg
Confined and
Unconfined Space
The National Fuel Gas Code ANSI
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
and an unconfined space as 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,
are considered a part of the
unconfined space.
This heater shall not be installed
in a confined space or unusually
tight construction unless
provisions are provided for
adequate combustion and
ventilation ai r.
Adjoining rooms are
*
communicating only if there are
dooles passageways or ventilation
grills between them.
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, ANSI Z223.1/NFPA 54, Air for Combustion and Ventilation, or
applicable local codes.
4
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater Btu/Hr
Gas water heater* Btu/Hr
Gas furnace Btu/Hr
Vented gas heater Btu/Hr
Gas Fireplace logs Btu/Hr
Example:
Gas water heater 40,000 Btu/Hr
Vent free heater + 18,000 Btu/Hr
Total = 58,000 Btu/Hr
Other gas appliances* + Btu/Hr
Total = 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)
58,000 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 air. 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/ANSI Z223.1. Section 5.3, Air
for Combustion and Ventilation for required
size of ventilation grills or ducts
WARNING: Rework worksheet, adding 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
5
Figure 3 -Ventilation Air from Outdoors
INSTALLATION
NOTICE: This heater is
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.
WARNING: A qualified
service person must install
heater. Follow all local codes.
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
Before installing heater, make sure
you have the items listed below.
l piping (check local codes)
l sealant (resistant to Propane/LP gas)
l equipment shutoff valve*
l ground joint union
l test gauge connection*
l sediment trap
l tee joint
l pipe wrench
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/ANSI 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.
Heated air entering the attic will activate
the power vent.
*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.
LOCATING HEATER
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
l where there is easy access for
operation, inspection, and service
l in coldest part of room
An optional fan kit is available from
your dealer. See Accessories,
page 17. If planning to use fan,
locate heater near an electrical
outlet.
CAUTION: If you install the
heater in a home garage
l heater pilot and burner must
be at least 18 inches above
floor.
l locate heater where moving
vehicle will not hit it.
CAUTION: This heater
creates warm air currents.
These currents move heat
to wall surfaces next to
heater. Installing heater
next to vinyl or cloth wall
coverings or operating
heater where impurities (such as
tobacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist may
discolor walls.
WARNING: Never install
the heater
l in a bedroom or bathroom.
l in a recreational vehicle.
l where curtains, furniture,
clothing, or other flammable
objects are less than 36 inches
from the front, top, or sides
of the heater.
l as a fireplace insert.
l in high traffic areas.
l in windy or drafty areas.
6
INSTALLATION
WARNING: Maintain the
minimum clearances shown
in Figure 4. If you can,
provide greater clearances from
floor, ceiling, and joining wall.
Figure 4 -Mounting Clearances As
Viewed 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
may cause mildew to form
from too much moisture. See
Fresh Air for Combustion and
Ventilation, pages 4 and 5.
FASTENING HEATER TO WALL
Mounting Bracket
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.
Figure 6 -Mounting Bracket
Location
Removing Lower Front Panel Of
Heater.
1. Remove two screws near
bottom corners of front panel.
2. Pull bottom of lower front panel
forward, then down (see Figure
7).
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).
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.
WARNING: Maintain
minimum clearances shown in
Figure 8. If you can, provide
greater clearances from floor
and joining wall.
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.
3. Remove tape and mounting
bracket from wall.
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 5 - Moving Thermostat
Sensing Bulb
Figure 7 - Removing Lower Front
Panel of Heater
Methods For Attaching Mounting
Bracket To Wall
Only use last hole on each end
of mounting bracket to attach
bracket to wall. These two holes
are 16 inches apart from their
centers. 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 ML250HPA ML250TPA
Model ML150HPA ML150TPA
Figure 8 - Mounting Bracket
Clearances
7
INSTALLATION
Attaching Mounting Bracket to
Wall
Note: Wall anchors, mounting
screws, and spacers are in
hardware package. The hardware
package is provided with heater.
Attaching to Wal l Stud Method
For attaching mounting bracket to
wall studs
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.
Figure 9 - Folding Anchor
3. Insert wall anchor (wings
first) into hole. Tap anchor
flush to wall.
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).
IMPORTANT: Do not
hammer key! For thick walls
(over 1/2" thick) or solid walls,
do not pop open wings.
Figure 10 - Popping Open Anchor
Wing For Thin Walls
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.
Placing Heater on Mounting
Bracket
1. Locate two horizontal slots on
back panel of heater (see
Figure 11).
2. Place heater onto mounting
bracket. Slide horizontal slots
onto stand-out tabs on
mounting bracket.
Figure 11 - Mounting Heater Onto
Mounting Bracket
Installing Bottom Mounting
Screws
1. Locate two bottom mounting
holes. These holes are near
bottom on back panel of
heater(see Figure 12).
Figure 12 - Installing Bottom
Mounting Screws
2. Mark screw locations on wall.
3. Remove heater from mounting
bracket.
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 bottom mounting
screw
into wall stud, drill holes at
marked locations using 9/64"
drill bit.
5. Replace heater onto mounting
bracket.
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
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.
l Note: Do not replace lower front
panel at this time. Replace lower
front panel after making gas
connections and checking for
leaks (see pages 9 and 10).
8
CONNECTING TO GAS SUPPLY
WARNING: A qualified
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.
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.
Figure 13 - External Regulator with
Vent Pointing Down
WARING:Do not over tighten gas
connections.
INSTALLATION
r
Figure 14 -Gas Connection
*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.
CAUTION: Use only new, black
iron or steel pipe. Internally-tinned
copper tubing may be used in
certain areas. Check your local
codes. Use pipe of large enough
diameter to allow proper gas volume
to heater. If pipe is too small,
undue loss of pressure will occur.
Typical Inlet Pipe Diameters
All models up to 20,000 BTU’s use
3/8’’ or greater pipe;
All models 25,000 BTU’s and higher,
use 1/2” or greater pipe.
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).
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.
Apply pipe joint sealant lightly to
male threads. This will prevent
excess sealant from going into
pipe. Excess sealant in pipe could
result in clogged heater valves.
CAUTION: Use pipe joint
sealant that is resistant to
liquid petroleum (LP) gas.
Install sediment trap in supply line
as shown in Figure 14. Locate
sediment trap where it is within
reach for cleaning. Locate
sediment trap where trapped
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.
IMPORTANT: Hold pressure
regulator with wrench when
connecting it to gas piping and/or
fittings.
9
INSTALLATION
OPERATING YOUR HEATER
CHECKING GAS
CONNECTIONS
WARNING: Test all gas
piping and connections for leaks
after installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open flame to check for a
leak. Apply a mixture of liquid
soap and water to all joints.
Bubbles forming show a leak.
Correct all leaks at once.
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of
1/2 PSIG (3.5 K Pa)
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.
2. Cap off open end of gas pipe
where equipment shutoff valve
was connected.
3. Pressurize supply piping
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.
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 propane/LP
supply tank 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.
Pressure Testing Heater Gas
Connections
1. Open equipment shutoff valve
(see Figure 15).
2. Open propane/LP supply tank
valve.
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
non-thermostat models or
page 12 and 13 for thermostat
models). Check the rest of the
internal joints for leaks.
7. Turn off heater (see To Turn Off
Gas to Appliance, page 11 for
non-thermostat models or page
12 for thermostat models).
8. Replace lower front panel.
Figure 15 -Equipment Shutoff Valve
Figure 16 -Checking Gas Joints
NON-THERMOSTAT MODELS
nFOR YOUR SAFETYn
READ BEFORE LIGHTING
WARNING: If you do not
follow these instructions exactly,
a fire or explosion may result
in causing property damage,
personal injury or loss of life.
A. When lighting the pilot, follow
these instructions exactly.
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 .
WHAT TO DO IF YOU SMELL GAS
l Do not try to light any appliance.
l Do not touch any electric switch;
do not use any phone in your
building.
l Immediately call your gas
supplier from a neighbor’s
phone. Follow the gas
supplier’s instructions.
l If you cannot reach your
gas supplier, call the fire
department.
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.
10
OPERATING YOUR HEATER
Manual Control Models
nLIGHTINGn
INSTRUCTIONS
1. STOP! Read the safety
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.
NOTE: Knob cannot be turned from
“PILOT” to “OFF” unless knob is
pushed in slightly. Do not force.
4. Wait five (5) minutes to clear
out any air. Then smell for gas,
including near the floor. If you
smell gas,STOP! Follow “B” in
the safety information on the
side of the heater. If you do not
smell gas, go to the next step.
5. Push in gas control slightly
and turn counterclockwise
to “PILOT/IGN” and depress
for five(5) seconds
NOTE: The first time that the
heater is operated after connecting
the gas supply , the control knob
should be depressed for about thirty
(30) seconds. This will allow air to
bleed from the gas system.
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.
8. To select the desired heating
level, partially press down the
control knob slightly and rotate
counterclockwise . Release the
downward pressure on the knob
while continuing to turn until the
knob locks at the desired setting
position. Do not operate
between locked positions.
Figure 17 - Control Knob in The
OFF Position
Figure 18 - Pilot
nTO SELECTn
HEATING LEVEL
CAUTION: Do not try to
adjust heating levels by using
the equipment shutoff valve.
WARNING: When running
heater,set control knob at LOW,
MEDIUM, or HIGH locked
positions. Never set control knob
between locked positions. Poor
combustion and higher levels of
carbon monoxide may result.
Slightly press in control knob and
turn counterclockwise to the
LOW,MEDIUM, or HIGH position
(see Figure 19).
IMPORTANT: Release downward
pressure while turning control knob.
Control knob will lock at the desired
position.
nTO TURN OFFn
GAS TO APPLIANCE
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.
Shutting Off Burner Only ( pilot
stays lit)
Turn control knob clockwise
to the PILOT/IGN position.
nMANUAL LIGHTINGn
PROCEDURE
1. Remove lower front panel (see
Figure 7 page 7).
2. Follow steps 1 through 5 under
Lighting Instructions.
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 19 - Burner Patterns
11
THERMOSTAT MODELS
nFOR YOUR SAFETYn
READ BEFORE LIGHTING
WARNING: If you do not
follow these instructions exactly, a
fire or explosion may result
causing property damage,personal
injury or loss of life.
A. When lighting the pilot, follow these
instructions exactly.
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.
WHAT TO DO IF YOU SMELL GAS
l Do not try to light any
appliance.
l Do not touch any electric
switch, do not use any phone
in your building.
l Immediately call your gas
supplier from a neighbor’s
phone. Follow the gas
supplier’s instructions.
l If you cannot reach your gas
supplier, call the fire
department.
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.
OPERATING YOUR HEATER
nLIGHTINGn
INSTRUCTIONS
1. STOP! Read the safety
information on the side of heater.
2. Make sure equipment shutoff
valve is fully open.
3. Turn control knob clockwise
to the OFF position.
4. Wait five(5) 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 don’t smell
gas, go to the next step.
5. Turn control knob counterclockwise to the PILOT position.
Press in control knob for
five(5) seconds. (see Figure 20).
Note: You may be running
this heater for the first time
after hooking up to gas supply.
If so, the control knob may
need to be pressed in for 30
seconds. This will allow air to
bleed from the gas system.
l If control knob does not pop
up when released, contact a
qualified service person or
gas supplier for repairs.
6. With control knob pressed in,
push down and release ignitor
button. This will light pilot. The
pilot is attached to the front of
burner. If needed, keep pressing
ignitor button 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.
7. Keep control knob pressed
in for 30 seconds after lighting
pilot. After 30 seconds, release
control knob.
l If control knob does not pop
up when released, contact
a qualified service person or gas
supplier for repairs.
Note: If pilot goes out, repeat
pilot again.
8. Turn control knob counterclock-
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.
Shutting Off Burner Only (pilot
stays lit )
Turn control knob clockwise to
the PILOT position.
steps 3 through 7. This heater
has a safety interlock system.
Wait one(1)minute before lighting
wise to desired heating level.
The main burner should light.
Set control knob to any heat
level between HI and LO.(see
Figure 20)
CAUTION: Do not try to adjust heating levels by using the
equipment shutoff valve.
Figure 20 - Control Knob in The
OFF Position
Figure 21 - Pilot
nTO TURN OFFn
GAS TO APPLIANCE
Figure 22 - Burner Patterns
12
OPERATING HEATER
Continued
nTHERMOSTAT n
CONTROL OPERATION
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. At
times the room may exceed the set
temperature.If so, the burner will
shut off.The burner will cycle back
on when room temperature drops
below the set temperature. The
temperature setting knob can be set
to any comfort level between HI
and LO.
Note: The thermostat sensing bulb
measures the temperature of air near
the heater cabinet. This may not always 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
your own comfort levels.
nMANUAL LIGHTINGn
PROCEDURE
1. Remove lower front panel (see
Figure 7 page 7).
2. Follow steps 1 through 5 under
Lighting Instructions on page 12.
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 on page 12.
5. Replace lower front panel.
nINSPECTING BURNERn
Check pilot flame pattern and
burner flame pattern often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot
flame pattern. Figure 24 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 healer will
shut down. If pilot flame pattern is
incorrect, as shown in Figure 24.
l turn heater off (see To Turn
Off Gas to Appliance. page 11
for non-thermostat models or
page 12 for thermostat models.)
l see Troubleshooting, pages 14
through 16.
Figure 23 - Correct Pilot Flame
Pattern
Figure 24 - Incorrect Pilot Flame
Pattern
BURNER FLAME PATTERN
Figure 25 shows a correct burner
flame pattern. Figure 26 shows an
incorrect burner flame pattern. If
burner flame pattem is incorrect, as
shown in Figure 26.
l turn heater off (see To Turn Off
Gas to Appliance. page 11 for
non-thermostat models or page
12 for thermostat models).
l see Troubleshooting. pages 14
through 16.
Figure 25 - Correct Burner Flame
Pattern
Figure 26 - Incorrect Burner
Flame Pattern
n CLEANING AND n
MAIN TENANCE
WARNING: Turn off heater
and let cool before servicing.
CAUTION: You must keep con-
trol areas, burner, and circulating
air passageways of heater clean.
Inspect these areas of heater before each use. Have heater Inspected yearly by a qualified service person. Heater may need more
frequent cleaning due to excessive
lint from carpeting, bedding
material, pet hair, etc.
CLEANING ODS/PILOT AND
BURNER
l Use a vacuum cleaner,
pressurized air. or small, soft
bristled brush to clean.
CLEANING BURNER
PILOT AIR INLET HOLE
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 compressed air no greater than 30 PSl.
Your local computer store, hardware
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 directions on the can.
If you don’t follow directions on the
can, you could damage the pilot
assembly.
1. Shut off the unit, including the
pilot. Allow the unit to cool for
at least thirty minutes.
2. Inspect burner, pilot for dust
and dirt.
3. Blow air through the ports/slots
and holes in the burner.
Clean the pilot assembly also. A
yellow 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 pilot flame comes out of
the pilot assembly (see Figure 27).
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 27 - Pilot Inlet Air Hole
CLEANING HEATER CABINET
Air Passageways
l Use a vacuum cleaner or
pressurized air to clean.
Exterior
l Use a soft cloth dampened with
a mild soap and water mixture.
Wipe the cabinet to remove dust.
13
TROUBLESHOOTING
Note : All troubleshooting
items are listed in order of
operation.
OBSERVED PROBLEM
When ignitor button is pressed and
control knob is pressed in and turned to
the PILOT position, there is no spark
at ODS/pilot.
ODS/pilot lights but flame goes out
when control knob is released.
WARNING: Only a qualified
service person should service and
repair heater.
POSSIBLE CAUSE
1. Ignitor electrode is positioned
wrong.
2. Ignitor electrode is broken.
3. Ignitor electrode is not connected
to ignitor cable.
4. Ignitor cable pinched or wet.
5. Broken ignitor cable.
6. Bad piezo ignitor.
1. Gas supply turned off or
equipment shutoff valve is closed.
2. Control knob not fully pressed in
while pressing ignitor button.
3. Air in gas lines when installed.
4. ODS/pilot is clogged.
5. Control knob not in PILOT position.
6. Gas regulator setting is not correct.
7. Depleted gas supply.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage
ODS/pilot unit.
REMEDY
1. Replace ignitor.
2. Replace ignitor.
3. Reconnect ignitor cable.
4. Free ignitor cable if pinched by
any metal or tubing. Keep
ignitor cable dry.
5. Replace ignitor cable.
6. Replace piezo ignitor.
1. Turn on gas supply or open
equipment shutoff valve.
2. Fully press in control knob
while pressing ignitor button.
3. Continue holding down control
knob. Repeat igniting operation
until air is removed.
4. Clean ODS/pilot (see Cleaning and
Maintenamce, Page 13) or replace
ODS/pilot assembly.
5. Turn control knob to PILOT position.
6. Replace gas regulator.
7. Contact local prapane/LP gas company.
When ignitor button is pressed and
control knob is press in and turned to
the PILOT position, there is a spark
at ODS/pilot but no ignition.
1. Control knob is not fully pressed in.
2. Control knob is not pressed in
long enough.
3. Equipment shutoff valve is not
fully open.
4. Thermocouple connection is
loose at control valve.
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:
A) Low gas pressure
B) Dirty or partially clogged
ODS/pilot
6. Thermocouple damaged.
7. Control valve damaged.
14
1. Press in control knob fully.
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds.
3. Fully open equipment shutoff valve.
4. Hand tighten until snug, then
tighten 1/4 turn more.
5. A) Contact local propane/LP gas
company.
B) Clean ODS/pilot (see Cleaning
and Maintenance, Page 13) or
replace ODS/pilot assembly.
6. Replace thermocouple.
7. Contact Dealer or PRO-COM
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner(s)does not light after
ODS/pilot is lit.
Delayed ignition of burner(s).
Burner backfiring during combustion.
Burner Plaque(s) does not glow.
POSSIBLE CAUSE
1. Burner orifice is clogged.
2. Burner orifice diameter is too small.
3. Inlet gas pressure is too low.
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Burner orifice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is defective.
1. Plaque damaged.
2. Control knob set between locked
positions.
3. Inlet gas pressure is too low.
REMEDY
1. Clean burner orifice (see Cleaning
and Maintenance, Page 13) or
replace burner orifice.
2. Replace burner orifice.
3. Contact local Propane/LP gas company.
1. Contact local Propane/LP gas company.
2. Clean burner (see Cleaning and
Maintenance, Page 13) or replace
burner orifice.
1. Clean burner orifice (see Cleaning
and Maintenance, Page 13) or
replace burner orifice(s).
2. Contact Dealer or PRO-COM.
3. Replace gas regulator.
1. Replace burner.
2. Turn control knob until it locks at
desired setting.
3. Contact local propane/LP gas
company.
Slight smoke or odor during
initial operation.
Heater produces a clicking/ticking
noise just after burner is lit or
shut off.
White powder residue forming within
burner box or on adjacent
walls or furniture.
1. Residues from manufacturing
processes.
1. Metal expanding while heating or
contracting while cooling.
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. turn into white
powder residue.
15
1. Problem will stop after a few hours
of operation.
1. This is common with most heaters.
If noise is excessive, contact
qualified ser vice person.
1. Turn heater off when using
furniture polish, wax, carpet
cleaner, or similar products.
TROUBLESHOOTING
Continued
WARNING: If you smell gas
l Shut off gas supply.
l Do not try to light any appliance.
l Do not touch any electrical switch; do not use any phone in your building.
l Immediately cal l your gas supplier from a neighbor’s phone. Follow the gas
supplier’s instructions.
l If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating heater where impurities in air exist may create odors. Clean-
ing 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.
OBSERVED PROBLEM
Heater produces unwanted odors.
Heater shuts off in use (ODS operates).
Gas odor exists even when control
knob is in OFF position.
Gas odor during combustion
POSSIBLE CAUSE
1. Heater is burning vapors from
paint, hair spray, glues, etc.
(See IMPORTANT statement
above).
2. Gas leak. See Warning
Statement at top of page.
1. Not enough fresh air is available.
2. Low line pressure.
3. ODS/pilot is partially clogged.
1. Gas leak. See Warning
Statement at top of page.
2. Control valve is defective.
1. Foreign matter between control
valve and burner.
2. Gas leak. See Warning
Statement at top of page.
REMEDY
1. Ventilate room. Stop using odor
causing products while heater
is running.
2. Locate and correct all leaks(see
Checking Gas Connections,
Page 10).
1. Open window and/or door for,
ventilation.
2. Contact local propane/LP gas
company.
3. Clean ODS/pilot (see Cleaning
Page 13).
1. Locate and correct all leaks(see
Checking Gas Connections,
Page 10).
2. Replace control valve.
1. Take apart gas tubing and
remove foreign matter.
2. Locate and correct all leaks
(see Checking Gas
Connections, Page 10).
Moisture/condensation noticed on
windows.
1. Not enough combustion/ventilation
air.
16
1. Refer to Air for Combustion and
Ventilation requirements , Page
4.
SPECIFICATIONS
ML250HPA
6,000/25,000
Propane/LP Only
Piezo
10" W.C.
Btu(available)
Gas Type
Ignition
Pressure Regulator setting
ML150HPA
6,000/15,000
Propane/LP Only
Piezo
10" W.C.
ML150TPA
15,000
Propane/LP Only
Piezo
10" W.C.
Inlet Gas Pressure (inches of water)
Maximum
Minimum
14"
11"
14"
11"
14"
11"
Dimensions, Inches (HxWxD)
Heater
Carton
23 1/2×19 1/4×8
26 1/2×21 3/4×9 1/4
23 1/2×19 1/4×8
26 1/2×21 3/4×9 1/4
23 1/2×26 5/8×8
26 1/2×28 1/2×9 1/4
Weight (pounds)
Heater
Shipping
23
26
24
27
30
35
Note: Dimensions listed are outer most points on the heater (includes control knobs and grill).
* For purposes of input adjustment.
REPLACEMENT PARTS
Note: Use only original replacement
parts. This will protect your warranty
coverage for parts replaced under
warranty.
PARTS UNDER WARRANTY
Contact authorized dealer from
whom you purchased this product.
ACCESSORIES
Purchase these heater accessories 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.
Optional FAN Kit
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-
YJLF-B improves heater efficiency
and includes installation and operating instructions.
If they are unable to supply original
replacement part(s), call the number on the front of manual. When contacting your dealer or PRO-COM, have
ready:
l your name
l your address
l model and serial numbers of
your heater
l how heater was malfunctioning
l type of gas used (propane/LP or
natural gas)
l purchase date
EQUIPMENT SHUTOFF VALVE
For all models. Equipment shutoff
valve with 1/8" NPT tap. This part
should be purchase.
l warranty card
Usually, we will ask you to return the
defective part to the factory.
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this
product. If they can’t supply original
replacement part(s), call PRO-COM’s
phone number (877)886-5989.
TECHNICAL SERVICE
You may have further questions
about installation, operation, or
troubleshooting. If so, contact
PRO-COM’S phone number (877)
886-5989.
FAN PF06-YJLF-B
FLOOR MOUNTING STAND
For locating heater on the floor, away
from a wall. Complete installation
instructions provided with floor
mounting stand.
ML250TPA
25,000
Propane/LP Only
Piezo
10" W.C.
14"
11"
23 1/2×26 5/8×8
26 1/2×28 1/2×9 1/4
31
36
17
ILLUSTRATED
PARTS BREAKDOWN
ML150HPA
ODS/Pilot Assembly
Burner Assembly
18
PARTS LIST
ML150HPA
This list contains replaceable parts for your heater. When ordering relacement
parts, following the instructions listed under Replacement Part on page17 of this
manual.
KEY
NO.
1
2
3
4
5
5-1
5-2
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
ML150HPA
PART NO.
MB11054
MB09052
MB11053
MB19004
ND1808x400x9
ND0803-4
ND0807
ML026-01
ML069-02
NV2020-14
ML073-01
ML028-01
ML029-01
ML030-01
MB40024
MB40025
MB40026
MB40027
MB40028
ML090-02
MB16001
MB16003
NRV81FIL-10
96-4Z
ML079-01
MB29002
ML083-03
ML060-01
DESCRIPTION
Cabinet Assembly
Lower Front Panel Assembly
Deflector Unit
Burner Assembly
ODS Pilot Assembly
Thermocouple
lgnitor Electrode
ODS Mounting Bracket
Self Tapping Screw
Control Valve
Ignitor Line
Control Valve Bracket
Control Valve Fixed Nut
Control Valve Main Inlet Nut
Main Inlet Tube Assembly
ODS Gas Line Assembly
Burner Gas Line Assembly A
Burner Gas Line Assembly B
Burner Gas Line Assembly C
Injector
Control Knob Assembly
Control Rod Assembly
Pressure Regulator
Washer
Self Locking Screw
Grill Guard
Ignitor Assembly
Mounting Bracket
QTY
1
1
1
1
1
1
1
1
14
1
1
1
1
1
1
1
1
1
1
3
1
1
1
2
2
1
1
1
MB28001
ML070-04
ML071-02
ML072-01
Hardware Assembly
CSA/AGA Decal
Gas Instruction Decal
Inside Warning Label
19
1
1
1
1
ILLUSTRATED PARTS
BREAKDOWN
ML250HPA
Burner Assembly
ODS/Pilot Assembly
20
PARTS LIST
ML250HPA
This list contains replaceable parts for your heater. When ordering relacement
parts, following the instruction listed under Replacement Parts on page17 of this
manual.
KEY
NO.
1
2
3
4
5
5-1
5-2
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
ML250HPA
PART NO.
MB10051
MB09051
MB11051
MB19002
ND1808x400x9
ND0803-4
ND0807
ML026-01
ML069-02
NV2020-14
ML073-01
ML028-01
ML029-01
ML030-01
MB40001
MB40002
MB40003
MB40012
MB40013
MB40004
MB40014
MB40015
MB40005
ML090-02
ML056-01
MB16001
MB16003
NRV81FIL-10
96-4Z
ML079-01
MB29001
ML083-03
ML060-01
DESCRIPTION
Cabinet Assembly
Lower Front Panel Assembly
Reflector Unit
Burner Assembly
ODS Pilot Assembly
Thermocouple
lgnitor Electrode
ODS Mounting Bracket
Self Tapping Screws
Control Valve
Ignitor Line
Control Valve Bracket
Control Valve Fixed Nut
Control Valve Main Inlet Nut
Main Inlet Tube Assembly
ODS Gas Line Assembly
Burner Gas Line Assembly C
Burner Gas Line Assembly C1
Burner Gas Line Assembly C2
Burner Gas Line Assembly B
Burner Gas Line Assembly B1
Burner Gas Line Assembly B2
Burner Gas Line Assembly A
Injector
“T” Joint
Control Knob Assembly
Control Rod Assembly
Pressure Regulator
Washer
Self Locking Screw
Grill Guard
Ignitor Assembly
Mounting Bracket
QTY
1
1
1
1
1
1
1
1
14
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5
2
1
1
1
2
2
1
1
1
MB28001
ML070-06
ML071-02
ML072-01
Hardware Assembly
CSA/AGA Decal
Gas Instruction Decal
Inside Warning Label
21
1
1
1
1
ILLUSTRATED
PARTS BREAKDOWN
ML150TPA
ODS/Pilot Assembly
Burner Assembly
22
PARTS LIST
ML150TPA
This list contains replaceable parts for your heater. When ordering replacement parts,
following the instruction listed under Replacement Parts on page 17 of this manual.
KEY
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14-1
14-2
15
16
17
18
19
20
21
22
23
24
25
26
27
ML150TPA
PART NO.
MB10055
MB09052
MB11053
MB19004
SIT545-000
ML111-01
845-4.8x60Z
ML060-01
MB40007
ML096-01
ML115-01
ML116-01
ML073-01
ND1808x800x9
ND0803-8
ND0807
ML026-01
ML069-02
MB40029
MB40030
MB40031
MB40032
ML090-02
MB40006
NRV81FI-10
96-4Z
ML079-01
MB29002
ML083-03
DESCRIPTION
Cabinet Assembly
Lower Front Panel Assembly
Reflector Unit
Burner Assembly
Thermostat Valve Assembly
Thermostat Valve Base
Self Tapping Screw
Mounting Bracket
Thermostat Outlet Tube Assembly
4-way Connector
4-way Connector Bracket
4-way Connector Fixed Nut
Ignitor Line
ODS Pilot
Thermocouple
Ignitor Electrode
ODS Mounting Bracket
Self Tapping Screw
ODS Gas Line Assembly
“A” Burner Gas Line Assembly
“B” Burner Gas Line Assembly
“C” Burner Gas Line Assembly
Injector
Main Inlet Tube Assembly
Pressure Regulator
Washer
Self Locking Screw
Grill Guard
Ignitor Assembly
QTY
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
14
1
1
1
1
3
1
1
2
2
1
1
MB28001
ML070-08
ML071-02
ML072-01
ML065-01
Hardware Assembly
CSA/AGA Decal
Gas Instruction Decal
Inside Warning Label
Thermostat Sensing Bulb Clip
23
1
1
1
1
2
ILLUSTRATED
PARTS BREAKDOWN
ML250TPA
ODS/Pilot Assembly
Burner Assembly
24
PARTS LIST
ML250TPA
This list contains replaceable parts for your heater. When ordering replacement
parts, following the instruction listed under Replacement Parts on page 17 of this
manual.
KEY
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14-1
14-2
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
ML250TPA
PART NO.
MB10052
MB09051
MB11051
MB19002
SIT545-000
ML111-01
845-4.8x60Z
ML060-01
MB40007
ML096-01
ML115-01
ML116-01
ML073-01
ND1808x800x9
ND0803-8
ND0807
ML026-01
ML069-02
MB40008
MB40009
MB40012
MB40013
MB40010
MB40014
MB40015
MB40011
ML090-02
ML056-01
MB40006
NRV81FI-10
96-4Z
ML079-01
MB29001
ML083-03
DESCRIPTION
Cabinet Assembly
Lower Front Panel Assembly
Reflector Unit
Burner Assembly
Thermostat Valve Assembly
Thermostat Valve Base
Self Tapping Screw
Mounting Bracket
Thermostat Outlet Tube Assembly
4-way Connector
4-way Connector Bracket
4-way Connector Fixed Nut
Ignitor Line
ODS Pilot
Thermocouple
Ignitor Electrode
ODS Mounting Bracket
Self Tapping Screw
ODS Gas Line Assembly
“C” Burner Gas Line Assembly
“C1” Burner Gas Line Assembly
“C2” Burner Gas Line Assembly
“B” Burner Gas Line Assembly
“B1” Burner Gas Line Assembly
“B2” Burner Gas Line Assembly
“A” Burner Gas Line Assembly
Injector
“T” Joint
Main Inlet Tube Assembly
Pressure Regulator
Washer
Self Locking Screw
Grill Guard
Ignitor Assembly
QTY
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
14
1
1
1
1
1
1
1
1
5
2
1
1
2
2
1
1
MB28001
ML070-10
ML071-02
ML072-01
ML065-01
Hardware Assembly
CSA/AGA Decal
Gas Instruction Decal
Inside Warning Label
Thermostat Sensing Bulb Clip
25
1
1
1
1
2
Loading...