Procom ML250HPA, ML150HPA, ML150TPA User Manual
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
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