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
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Do not try to light any appliance.
Do not touch any electrical switch; do not
use any phone in your building.
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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.
ML060HPA ML100HPA ML100TPA
Table of Contents
WARNING: Improper
installation,
Important Safety Information.................................2
Product Features.....................................................3
Proper Ventilation & FreshAir..............................4
Installation................................................................6
OperatingYour Heater............................................10
Cleaning & Maintenance.......................................13
Trouble Shooting...................................................14
Specifications..........................................................17
PartsList..................................................................19
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.
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.
WATER VAPOR:ABY-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.
WARNING: This is an unvented gas-
fired heater. It uses air (oxygen) from the
room in which it is installed. Provi-
sions for adequate combustion and ventila-
tion air must be provided. Refer to Air
For Combustion and Ventilation section on
page 4 of this manual.
*Aftermarket: Completion of sale, not for purpose of
resale, from the manufacturer.
Installer: Please leave these instructions with the
consumer.
Continental Appliance Inc.
5 Musick
4600 Highlands
Parkway S.E. Suite# D/E
Smyrna GA 30080
Irvine
Consumer: Please retain these instructions for
future use.
CA 92618
TOLL-FREE NUMBER: 1-877-886-5989
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PRODUCT IDENTIFICATION
Figure 1- 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
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
PIEZO IGNITION SYSTEM
This heater is equipped with a piezo ignitor.
This system requires no matches, batteries, or
other sources to light heater.
Quincy, MA 02269
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.
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.
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 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.
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.
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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 the
Confined and
Unconfined Space
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 m 3 p e r k w )
aggregate input rating of all
appliances installed in that space
FRESH AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This heater
shall not be installed in a
confined space or unusually
o f
t h e
tight
provisions are provided for
adequate combustion and
construction
unless
and an unconfined space as
a
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,
are considered
unconfined space.
This heater shall not be installed
in a confined space or unusually
ventilation air. Read the
following instructions to
insure proper fresh air for this
continuous water vapor retarder
with a rating of one perm (6 10-11 kg
×
per pa-sec-m2)
or less with
and
other
fuel-burning
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 win-
dow and door frames, between sole
appliances in your home.
PROVIDING ADEQUATE
VENTILATION
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
plates and floors, between
wall-
ceiling joints, between wall panels, at
penetrations for plumbing, electrical,
tight
construction
unless
and gas lines, and at
other
provisions are provided for
openings. If your home meets all of
the three criteria above, you must
provide additional fresh air. See
Ventilation Air from Outdoors,
pages 5 and 6.
If your home does not meet all of
the three criteria above see
Determining Fresh-Air Flow for
Heater Location, page 4, 5.
adequate
combustion
and
a r e
ventilation air.
A d j o i n i n g
communicating only if there are
r o o m s
*
doorless
passageways
or
The information on pages 4
through 6 will help you classify
your space and provide adequate
ventilation.
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 size 18ft (length) 16ft( width) 8ft. (ceiling height)=2304cu. 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: 2304 cu. ft. (volume of space)÷50 cu.ft.=46.1 or 46,100(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
Example:
Gas water heater
Vent free heater
Total
40,000
10,000
50,000
Btu/Hr
Btu/Hr
Btu/Hr
+
=
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 : 46,100 Btu/Hr(maximum the space can support)
50,000 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.
AIR FOR COMBUSTION AND
VENTILATION
Continued
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,
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
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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.
Heated air entering the attic will activate
the power vent.
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.
*A
CSA/AGA design-certified
WARNING: Never install
equipment shutoff valve with 1/8"
NPT tap is an acceptable
alternative to test gauge connection.
Purchase the optional CSA/AGA
design certified
shutoff valve
the heater
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in a bathroom(Models
ML100HPA and ML100TPA ,
only ML060HPA is allowed in a
bathroom. Check local codes.)
in a recreational vehicle.
where curtains, furniture.
as a fireplace insert.
equipment
from your
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dealer. See Accessories, page 17.
in high traffic areas.
in windy or drafty areas.
LOCATING HEATER
This heater is designed to be
mounted on a wall.
For convenience and efficiency,
install heater
When the heater is installed in
Bathrooms,do not use flammable
products such as aerosol hair spray,
foot spary or any product that contains
flammable vapors and keep towels
away from heater.(only ML060HPA is
allowed in a bathroom.)
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where there is easy access for
operation, inspection, and service
in coldest part of room
WARNING: A qualified
service person must install
heater. Follow all local codes.
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CHECK GAS TYPE
CAUTION: If you install the
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
heater in a home garage
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heater pilot and burner must
be at least 18 inches above
floor.
locate heater where moving
vehicle will not hit it.
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as tobacco
smoke, aromatic candles, clean-
ing fluids, oil or kerosene lamps,
etc.) in the air exist may discolor
walls.
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Before installing heater, make sure
you have the items listed below.
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piping (check local codes)
sealant (resistant to Propane/LP
gas)
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equipment shutoff valve*
ground joint union
test gauge connection*
sediment trap
tee joint
pipe wrench
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6
INSTALLATION
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
6).
WARNING: Maintain the
minimum clearances shown
in Figure 4. If you can,
provide greater clearances from
floor, ceiling, and joining wall.
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 mini-
mum clearances shown in Fig-
ure 8. If you can, provide greater
Figure 6 - Removing Lower Front
Panel Of Heater
clearances
from
floor
Figure 4 -Mounting clearances As
Viewed From Front of Heater
and joining wall.
2. Mark screw locations on
wall. (see Figure 7)
Note: Only mark last hole on
FASTENING HEATER TO WALL
Mounting Bracket
Methods For Attaching Mounting
Bracket To Wall
The mounting bracket is located
on back panel of heater (see
Figure 5). It has been taped there
for shipping. remove mounting
bracket from back panel.
Only use last hole on each end
of mounting bracket to attach
bracket to wall. Attach mounting
bracket to wall only in one of two
ways:
each end of mounting bracket.
In-
sert mounting screws through
these holes only.
3. Remove tape and mounting
bracket from wall.
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.
Figure 5 -Mounting Bracket
Location
Figure 7 - Mounting Bracket
Clearances
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7
INSTALLATION
Installing Bottom Mounting
Screw
Attaching Mounting Bracket To
Wall
1. Locate bottom mounting hole. This
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
hole is near bottom on
back
panel of healer (see Figure 11).
2. Mark screw location on wall.
3. Remove heater from mounting
bracket.
Figure 9 - 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.
1. Drill holes at marked locations
using 9/64" drill bit.
6. Insert mounting screws through
bracket and into wall anchors.
7. Tighten screws until mounting
bracket is firmly fastened to
wall.
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 8 below.
Figure 11 - Installing Bottom
Mouting Screw
IMPORTANT: Do not
4. If installing bottom mounting
screw into hollow or solid wall,
install wall anchors. Follow steps
1 through 4 under Attaching
To Wall Anchor Method. If
hammer
key! For thick walls
(over 1/2" thick) or solid walls,
do not pop open wings.
installing
screw into
bottom mounting
wall stud, drill
Placing Heater On Mounting
Bracket
holes at marked locations
using 9/64" drill bit.
1. Locate two horizontal slots on
back panel of heater (see
Figure 10).
2. Place heater onto mounting
bracket. Slide horizontal slots
5. Replace heater onto mounting
bracket.
6. Place
spacers
between
bottom mounting
holes and
onto stand-out
mounting bracket.
tabs
on
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
or drilled holes .
8. Tighten both screw until heater
is firmly secured to
wall. Do not over tighten.
of
wall anchor
Figure 8 - 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 9).
ꢀ
Note: Do not replace lower front
panel at this time. Replace lower
front panel after making gas
connections and checking for
leaks(see page 9) .
Figure 10 - Mounting Heater Onto
Mounting Bracket
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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 be-
tween 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 12.
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, black
male threads. This will prevent
iron or steel pipe. Internally-tinned
excess sealant from going into
copper tubing may be used in
pipe. Excess sealant in pipe could
certain areas. Check your local
codes. Use pipe of large enough
result in clogged heater valves.
diameter to allow proper gas vol-
ume to heater. If pipe is too
small, undue loss of pressure
will occur.
CAUTION: Use pipe joint
sealant that is resistant to
liquid petroleum (LP) gas.
Install sediment trap in supply line
as shown in Figure 13. Locate
sediment trap where it is within
Typical Inlet Pipe Diameters
All models up to 20,000 BTU’s use
3/8’’ or greater pipe;
reach
sediment
for cleaning. Locate
trap where trapped
All models 25,000 BTU’s and higher,
use 1/2” or greater pipe.
matter is not likely to freeze. A
sediment trap traps moisture and
Installation must include an
equipment shutoff valve, union,
and plugged 1/8" NPT tap. Locate contaminants. This keeps them
NPT tap within reach for test gauge
hook up. NPT tap must be
upstream from heater (see Figure 13).
from going into heater controls. If
sediment trap is not installed or is
installed wrong, heater may
not run properly.
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.
Figure 12 - External Regulator with
Vent Pointing Down
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
CHECKING GAS
CONNECTIONS
ꢀFOR YOUR SAFETYꢀ
READ BEFORE LIGHTING
WARNING: Test all gas
1. Open equipment shutoff valve
(see Figure 14).
2. Open propane/LP supply tank
valve.
WARNING: If you do not
piping and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
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 15 ). 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 10,11and 12) Check
the rest of the internal joints for
leaks.
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.
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 .
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.
WHAT TO DO IF YOU SMELL GAS
7. Turn off heater (see To Turn Off
Gas to Appliance, pages 11 and
12).
ꢀ
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Do not try to light any appliance.
Do not touch any electric switch;
do not use any phone in your
building.
8. Replace lower front panel.
2. Cap off open end of gas pipe
where equipment shutoff valve
was connected.
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Immediately
supplier from
call
a
your gas
neighbor’s
3. Pressurize
supply
piping
phone. Follow
the
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.
supplier’s instructions.
If you cannot reach your
gas supplier, call the fire
department.
Figure 14 -Equipment Shutoff Valve
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.
Test Pressures Equal To or
Less Than 1/2 PSIG (3.5 K Pa)
1. Close equipment shutoff valve
(see Figure 14).
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 14). Apply
mixture of liquid soap and water
to gas joints. Bubbles forming
show a leak.
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 15 -Checking Gas Joints
4. Correct all leaks at once.
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1 0
OPERATING YOUR HEATER
ꢀTO SELECTꢀ
Manual Control Models:
ML060HPA
ML060HPA,ML100HPA
HEATING LEVEL
WARNING: When running
heater,set control knob at
ON, LOW or HIGH locked
positions.(see Figure 19 & 20)
N e v e r s e t c o n t r o l k n o b
between locked positions. Poor
combustion and higher levels of
carbon monoxide may result.
ꢀLIGHTINGꢀ
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
Figure 19 - Burner Patterns
CAUTION: Do not try to
adjust heating levels by using
the equipment shutoff valve.
ML100HPA
to the OFF position. ( see
Figures 16 & 17)
4. Wait five (5) minutes to clear
out any air. Then smell for
gas, including near the floor.
Slightly press in control knob and
turn counterclockwise
to the
ON, LOW or HIGH positions(see
Figure 19 & 20).
If
you
smell gas, STOP!
in the safety
Follow “B”
information on the side of the
heater. If you do not smell
gas, go to the next step.
IMPORTANT: Release downward
pressure while turning control knob.
Control knob will lock at the
desired position.
5. Push
slightly
counterclockwise
in gas control knob
and
turn
to
Figure 20 - Burner Patterns
ꢀTO TURN OFFꢀ
GASTOAPPLIANCE
“PILOT/IGN” and depress for
five(5) seconds
Shutting Off Heater
1. Turn control knob clockwise
to the OFF position.
NOTE: The first time that the heater
is operated after connecting the
gas supply , the
control knob
2. Turn off all electric power to
the appliance if service is to
be performed.
Shutting Off Burner Only (Pilot
Stays Lit)
Figure 16 - Control Knob In
The OFF Position
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.
Turn control knob clockwise
to the PILOT/IGN position.
ꢀMANUAL LIGHTINGꢀ
PROCEDURE
1. Remove lower front panel (see
Figure 7 page 7).
2. Follow steps through 5 under
Lighting Instructions.
3. With control knob pressed in,
strike match. Hold match to
pilot until pilot lights.
Figure 17 - Control Knob In The
OFF Position
8. To select the desired heating
level, partially press down the
control knob slightly and rotate
counterclockwise
. Release
4.
Keep control knob pressed in
for 30 seconds after lighting pilot.
After 30 seconds, release control
knob.Follow step 8 under Lighting
Instuctions .
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 18 - Pilot
5. Replace lower front panel.
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1 1
OPERATING YOUR HEATER
THERMOSTAT MODEL
ML100TPA
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 counterclock-
ꢀFOR YOUR SAFETYꢀ
READ BEFORE LIGHTING
WARNING: If you do not follow
these instructions exactly, a fire or
explosion may result
property damage, personal injury or
loss of life.
Figure 21 - Control Knob In The
OFF Position
causing
wise
to the PILOT position.
Press in control knob for five(5)
seconds. (see Figure 21).
A.
This appliance has a pilot
which must be lighted by hand.
When lighting the pilot, follow these
instructions exactly.
Note: You may be running this
heater for the first time after hook-
ing 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.
ꢀ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 quali-
fied service person or gas sup-
plier for repairs. Until repairs are
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.
Figure 22 - Pilot
WHAT TO DO IFYOU SMELL GAS
ꢀ
ꢀ
Do not try to light any appliance.
Do not touch any electric
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
Figure 23 - Burner Partterns
ꢀTHERMOSTAT CONTROL OPERATIONꢀ
The thermostatic control used on this
model 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 ex-
ceed the set temperature. If so,the burner
will shut off. The burner will cycle back on
department.
m a d e , l i g h t
p i l o t
w i t h
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
match.To light pilot with match,
see Manual Lighting Procedure.
7. Keep control
knob pressed in when room temperature drops below the
set temperature. The control knob can be
set to any comfort level between HI and
LO.
for 30 seconds after lighting pilot.
After 30 seconds, release control
knob.
Note: The thermostat sensing bulb mea-
sures 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.
ꢀ
If control knob does not
repair may result in
explosion.
a
fire or
pop up when released, contact a
qualified service person or gas
supplier for repairs.
D. Do not use this appliance if any
part has been under water. Immedi-
ately call a qualified service techni-
cian to inspect the appliance and to
replace any part of the control sys-
tem and any gas control which has
been under water.
Note: If pilot goes out,repeat steps 3
through 7.This heater has a safety
interlock system. Wait one(1)
minute before lighting pilot again.
8. Turn control knob counter clock-
ꢀTO TURN OFFꢀ
GAS TO APPLIANCE
wise
to desired seating
ꢀLIGHTINGꢀ
INSTRUCTIONS
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.
level. The main burner should
light. Set control knob to any
heat level between HI and
LO. (see Figure 23)
1. STOP!
Read
the
safety
information on the side of heater.
Make sure equipment shutoff
valve is fully open.
2.
3.
CAUTION: Do not try to adjust
heating levels by using the
equipment shutoff valve.
Shutting Off Burner Only (pilot
stays lit )
Turn control knob clockwise
Turn control knob clockwise
to
to the OFF position.
the PILOT position.
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1 2
OPERATING HEATER
Continued
BURNER FLAME PATTERN
Figure 26 shows a correct burner ꢀ Use a vacuum cleaner, pres-
ODS/PILOTANDBURNER
ꢀMANUAL LIGHTINGꢀ
surized air, or a small, soft
bristled brush to clean.
flame pattern. Figure 26 shows an
incorrect burner flame pattern.
PROCEDURE
1. Remove lower front panel (see
Figure 7 page 7).
CLEANING BURNER
If burner flame pattern is incorect, as
shown in Figure 27
PILOT AIR INLET HOLE
2. Follow steps through 5 under
Lighting Instructions on page12.
3. With control knob pressed in,
strike match. Hold match to
pilot until pilot lights.
We recommend that you clean the
unit every 2,500 hours of operation
or every three months.
ꢀ
turn heater off (see To Turn Off
Gas to Appliance pages 11&12)
see Troubleshooting (pages 14
through 16)
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 cen-
ter may carry compressed air in a
can. You can use a vacuum cleaner
in the blow position. If using com-
pressed 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.
ꢀ
4.
Keep control knob pressed in
for 30 seconds after lighting pilot.
After 30 seconds, release control
knob.Follow step 8 under Lighting
Instuctions on page 12.
5. Replace lower front panel.
INSPECTING BURNER
Check pilot flame pattern and
burner flame pattern often.
Figure 26 - Correct Burner Flame
Pattern
PILOT FLAME PATTERN
Figure 24 shows a correct pilot
flame pattern. Figure 25 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 25.
2. Inspect burner, and pilot for dust
and dirt.
3. Blow air through the ports/slots
and holes in the bumer.
Also clean the pilot assembly. A
yellow tip on the pilot flame indi-
cates 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 28).
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.
ꢀ
turn heater off (see To Turn Off
Gas to Appliance. page 11,12
see Troubleshooting. pages 14
through 16.
ꢀ
Figure 27 - Incorrect Burner Flame
Pattern
CLEANING AND
MAINTENANCE
Figure 24 - Correct Pilot Flame
Pattern
WARNING: turn off heater
and let cool before cleaning.
Figure 28 - Pilot Air Inlet Hole
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
cleaning due to excessive lint from
carpeting, bedding material, pet hair,
etc.
CABINET
Air Passageways
ꢀ
Use
pressurized air to clean.
Exterior
Use a soft cloth dampened with
a
vacuum cleaner or
ꢀ
a mild soap and water mixture.
Wipe the cabinet to remove dust.
Figure 25 - Incorrect Pilot Flame
Pattern
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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.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
1. Replace ignitor.
2. Replace ignitor.
When ignitor button is pressed and
control knob is pressed in and turned to
the PILOT position, there is no spark
at ODS/pilot.
1. Ignitor electrode is positioned
wrong.
2. Ignitor electrode is broken.
3. Ignitor electrode is not connected 3. Reconnect ignitor cable.
to ignitor cable.
4. Ignitor cable is pinched or wet.
4. Free ignitor cable if pinched by
any metal or tubing. Keep ignitor
cable dry.
5. Broken ignitor cable.
6. Bad piezo ignitor.
5. Replace ignitor cable.
6. Replace piezo ignitor.
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. Gas supply turned off or 1. Turn on gas supply or open
equipment shutoff valve is closed.
equipment shutoff valve.
2. Control knob not fully pressed in 2. Fully press in control knob
while pressing ignitor button
while pressing ignitor button.
3. Air in gas lines when installed. 3. Continue holding down control
knob. Repeat igniting operation
until air is removed.
4. ODS/pilot is clogged.
4. Clean ODS/pilot (see Cleaning and
Maintenamce, Page 13) or replace
ODS/pilot assembly.
5. Control knob not in PILOT position. 5. Turn control knob to PILOT position.
6. Gas regulator setting is not correct. 6. Replace gas regulator.
7. Depleted gas supply.
7. Contact local prapane/LP gas
company.
ODS/pilot lights but flame goes out
when control knob is released.
1. Control knob is not fully pressed
1. Press in control knob fully.
in.
2. Control knob is not pressed in
long enough.
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds.
.
3. Equipment shutoff valve is not fully 3. Fully open equipment shutoff valve
open.
4. Thermocouple connection loose 4. Hand tighten until snug, then
at control valve.
tighten 1/4 turn more.
5. Thermocouple damaged.
6. Control valve damaged.
5. Replace thermocouple.
6. Replace control valve.
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1 4
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
REMEDY
OBSERVED PROBLEM
1. Burner orifice is clogged.
1. Clean burner orifice (see Cleaning
and Maintenance Page 13) or
replace burner orifice.
Burner(s)does not light after
ODS/pilot is lit.
2. Burner orifice diameter is too small. 2. Replace burner orifice.
3. Inlet gas pressure is too low.
3. Contact local propane/LP gas company.
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Contact local propane/LP gas company
2. Clean burner (see Cleaning and
Maintenance Page 13) or replace
burner orifice.
Delayed ignition of burner(s).
Burner backfiring during combustion.
Burner plaque(s) does not glow.
1. Burner orifice is clogged or 1. Clean burner orifice (see Cleaning
damaged.
and Maintenance Page 13) or
replace.
2. Replace burner.
2. Burner is damaged.
3. Gas regulator is defective.
3. Replace gas regulator.
1. Plaque damaged.
1. Replace burner.
2. Inlet gas pressure is too low.
2. Contact local propane/LP gas
company.
3. Control knob set between locked
positions.
3. Turn control knob until it locks at
desired setting.
1. Residues from manufacturing
processes.
1. Problem will stop after a few hours
of operation.
Slight smoke or odor during
initial operation.
1. Metal is expanding while heating 1. This is common with most heaters.
Heater produces a clicking/ticking
noise just after burner is lit or
shut off.
or contracting while cooling.
If noise is excessive, contact
qualified service person.
1. When heated the vapors from 1. Turn heater off when using
White powder residue forming within
burner box or on adjacent
walls or furniture.
furniture polish, wax, carpet
cleaners, etc. turn into white
powder residue.
furniture polish, wax, carpet
cleaner, or similar products.
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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.
REMEDY
POSSIBLE CAUSE
OBSERVED PROBLEM
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. Heater is 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.
Heater produces unwanted odors.
3. Refill supply tank.
1. Open window and/or door for
ventilation.
2. Contact local propane/LP gas
company.
1. Not enough fresh air is available.
2. Low line pressure.
Heater shuts off in use (ODS operates).
3. Clean ODS/pilot (see Cleaning
page 13).
3. ODS/pilot is partially clogged
1. Locate and correct all leaks(see
Checking Gas Connections,
page 10).
1. Gas leak. See Warning
Statement at top of page.
Gas odor exists even when control
knob is in OFF position.
2. Replace control valve.
2. Control valve defective.
1. Take apart gas tubing and
remove foreign matter.
1. Foreign matter between control
valve and burner.
Gas odor during combustion.
2. Locate and correct all leaks
2. Gas leak. See Warnin State-
ment at top of page.
(see
Checking
Gas
Connections, page 10).
1. Refer to Air for Combustion and
1. Not enough combustion/ventilation
air.
Moisture/condensation noticed on
windows.
Ventilation requirements ,page
4.
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1 6
SPECIFICATIONS
ML060HPA
6,000
ML100HPA
5,500/10,000
propane/LP Only
Piezo
ML100TPA
10,000
Btu(available)
Gas Type
propane/LP Only
Piezo
propane/LP Only
Piezo
Ignition
Pressure Regulator setting
10" W.C.
10" W.C.
10" W.C.
Inlet Gas Pressure* (inches of water)
Maximum
14"
11"
14"
11"
14"
11"
Minimum
Dimensions, Inches (HxWxD)
Heater
19-1/8 14-1/8 6-3/8
19-1/8 14-1/8 6-3/8
119-1/8 14-1/8 6-3/8
×
×
×
×
×
×
Carton
22 16-3/4 8-1/8
22 16-3/4 8-1/8
22 16-3/4 8-1/8
×
×
×
×
×
×
Weight (pounds)
Heater
12
15
13
16
13
16
Shipping
Note: Dimensions listed are outer most points on the heater (includes control knobs and grill).
* For purposes of input adjustment.
TECHNICALSERVICE
REPLACEMENT PARTS
You may have further questions
about installation, operation, or
troubleshooting. If so, contact
PRO-COM through phone number 1-
877-886-5989.The information is
listed on the front of manual.
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.
If they are unable to supply original
replacement part(s), call the num-
ber on the front of this manual. When
contacting your dealer or PRO-COM,
have ready:
SERVICE HINTS
When Gas Pressure Is Too
Low
EQUIPMENT SHUTOFF VALVE
For all models. Equipment shutoff
valve with 1/8" NPT tap.
ꢀ
Pilot will not stay lit
ꢀ
Burner will have delayed ignition
ꢀ
ꢀ
your name
your address
ꢀ Heater
will
not
produce
specified heat
ꢀ model and serial numbers of
ꢀ Propane/LP gas supply may be low
your heater
ꢀ
ꢀ
how heater was malfunctioning
type of gas used (propane/LP or
natural gas)
purchase date
warranty card
When Gas Quality Is Bad
ꢀ
Pilot will not stay lit
Burner will produce flames and
soot
ꢀ
ꢀ
ꢀ
ꢀ
Heater will backfire when lit
Usually, we will ask you to return the
defective part to the factory.
You may feel your gas pressure is
too low or the gas quality is poor .
If so, contact your local propane/LP
gas supplier.
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this
product. If they can’t supply original
replacement part(s), contact PRO-
COM through the phone number1-
877-886-5989.
ACCESSORIES
FLOOR MOUNTING STAND
Models ML060HPA,ML100HPA,
ML100TPA
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.
For locating heater on the floor away
from a wall. Complete installation
instructions provided with floor
mounting stand.
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1 7
ILLUSTRATED PARTS
BREAKDOWN
ML060HPA
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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 page17 of this
manual.
PARTS LIST
ML060HPA
PART
KEY
NO.
QTY
NUMBER
DESCRIPTION
1
2
3
4
5
5-1
5-2
6
1
1
1
1
1
1
1
1
10
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
Cabinet Assembly
Lower Front Panel Assembly
Reflector Unit
Burner Assembly
ODS Pilot Assembly
Thermocouple
MB10008
MB09003
ML006-02
MB19006
ND1308x600x9
ND0803-6
ND0807-B2
ML026-03
ML069-02
NV2020-12
ML073-01
ML029-01
MB40051
MB40052
MB40053
ML090-05
MB16002
NRV81FI-10
Ml129-02
ML079-01
ML119-01
MB29003
ML060-02
ML083-03
Ignitor Electrode
ODS Mounting Bracket
Self Tapping Screws
Control Valve
7
8
9
Ignitor Line
10
11
12
13
14
15
16
17
18
19
20
21
22
Control Valve Fixed Nut
Main Inlet Tube Assembly
ODS Gas Line Assembly
Burner Gas Line Assembly
Injector
Control Knob Assembly
Pressure Regulator
Regulator Mounting Bracket
Self Locking Screws
Pressure Tap
Grill Guard
Mounting Bracket
lgnitor Assembly
PARTS AVAILABLE NOT SHOWN
Assembly Hardware
CSA/AGA Label
MB28001
ML070-32
1
1
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1 9
ILLUSTRATED PARTS
BREAKDOWN
ML100HPA
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2 0
This list contains replaceable parts for your heater. When ordering replacement
parts, follow the instructions listed under Replacement Parts on page17 of this
manual.
PARTS LIST
ML100HPA
PART
KEY
NO.
QTY
NUMBER
DESCRIPTION
1
2
3
4
5
5-1
5-2
6
1
1
1
1
1
1
1
1
10
1
1
1
1
1
1
1
2
1
1
1
4
1
1
1
1
Cabinet Assembly
Lower Front Panel Assembly
Reflector Unit
Burner Assembly
ODS Pilot Assembly
Thermocouple
MB10008
MB09003
ML006-01
MB19006
ND1308x600x9
ND0803-6
ND0807-B2
ML026-02
ML069-02
NV2020-13
ML073-01
ML029-01
MB40033
MB40034
MB40035
MB40036
ML090-04
MB16002
NRV81FI-10
ML129-02
ML079-01
ML119-01
MB29003
ML060-02
ML083-03
Ignitor Electrode
ODS Mounting Bracket
Self Tapping Screws
Control Valve
7
8
9
Ignitor Line
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Control Valve Fixed Nut
Main Inlet Tube Assembly
ODS Gas Line Assembly
Burner Gas Line Assembly A
Burner Gas Line Assembly B
Injector
Control Knob Assembly
Pressure Regulator
Regulator Mounting Bracket
Self Locking Screws
Pressure Tap
Grill Guard
Mounting Bracket
lgnitor Assembly
PARTS AVAILABLE NOT SHOWN
Assembly Hardware
CSA/AGA Label
MB28001
ML070-02
1
1
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2 1
ILLUSTRATED PARTS
BREAKDOWN
ML100TPA
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2 2
This list contains replaceable parts for your heater. When ordering replacement
parts, follow the instructions listed under Replacement Parts on page17 of this
manual.
PART LIST
ML100TPA
KEY
NO.
PART
DESCRIPTION
QTY
NUMBER
MB10007
MB09003
ML006-01
MB19006
ND1308x600x9 ODS Pilot Assembly
ND0803-6
Thermocouple
ND0807-B2 Ignitor Electrode
1
Cabinet Assembly
Lower Front Panel Assembly
Reflector Unit
1
1
1
1
1
1
1
1
10
1
1
1
1
1
1
1
1
2
1
1
1
4
1
1
1
2
3
4
Burner Assembly
5
5-1
5-2
6
7
8
ML026-02
ML069-02
845-4.8x60Z Screws
ODS Mounting Bracket
Self Tapping Screws
9
SIT544-000
ML111-02
ML056-03
MB40037
MB40039
MB40038
MB40040
ML090-04
MB40041
Thermostat Valve Assembly
Thermostat Valve Base/Bracket
“T” Joint
Main Inlet Tube Assembly
ODS Gas Line Assembly
Main Outlet Tube Assembly
Burner Gas Line Assembly A
Injector
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Burner Gas Line Assembly B
NRV81FI-10 Pressure Regulator
ML129-02
ML079-01
MB29003
ML060-02
ML083-03
Regulator Mounting Bracket
Self Locking Screws
Grill Guard
Mounting Bracket
lgnitor Assembly
PARTS AVAILABLE NOT SHOWN
Assembly Hardware
CSA/AGA Label
MB28001
ML070-30
1
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