Procom MD100TBA User Manual

Vent-Free Gas Wall Heater

Blue Flame

Model # MD100TBA

WARNING:This appliance is

equipped for (Natural and Propane)
gas. Field conversion is not permitted
other than between natural or
propane gases.

MD200TBA-BB

MD300TBA-BB

MD200HBA-BB

MD300HBA-BB

CAUTION - FOR YOUR SAFETY

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.

MD200TBA

MD300TBA

MD100HBA

MD200HBA

MD300HBA

--

Do not store or use gasoline or other ammable vapors and liquids in vicinity

of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

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 re department.

-- Installation and service must be performed by a qualied installer, service
agency or the gas supplier.

This is an unvented gas-red 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 9 of this manual.

INSTALLER: DO NOT DISCARD THIS MANUAL – LEAVE FOR HOMEOWNER’S

FUTURE REFERENCE.

This appliance may be installed in an aftermarket, permanently located manufactured
(mobile) home, where not prohibited by local codes. This appliance is for use with
the type of gas indicated on the rating plate only. This appliance is not convertible for
use with other gases.

Do not try to light any appliance.

Questions about installation, operation, or troubleshooting? Before returning to your
retailer, call customer service department toll-free at [phone].

1

PC-MD100TBE-0902

TABLE OF CONTENTS

TABLE OF CONTENTS

Important Safety Information ..............................................................................................................................5

Product Features................................................................................................................................................7

Preparing for Installation.....................................................................................................................................8

Air for Combustion & Ventilation.........................................................................................................................9

Installation ........................................................................................................................................................12

Operation .........................................................................................................................................................18

Care and Maintenance .................................................................................................................................22

Troubleshooting .................................................................................................................................23

Replacement Parts.............................................................................................................................26

WARNING: READ THE INSTALLATION & OPERATION INSTRUCTIONS BEFORE USING THIS APPLIANCE.

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, re, explosion, and carbon

monoxide poisoning.

2

2

PRODUCT SPECIFICATIONS

MODEL MD100TBA MD200TBA MD300TBA

BTU (available) 10,000 20,000 30,000

Gas Type Using Natural Gas Using Natural Gas Using Natural Gas

Pressure Regulator Setting 4 in. W.C. 4 in. W.C. 4 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 10.5 in. 10.5 in. 10.5 in.

Minimum * 5 in. 5 in. 5 in.

Gas Type Using Propane Gas Using Propane Gas Using Propane Gas

Pressure Regulator Setting 9 in. W.C. 9 in. W.C. 9 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 14 in. 14 in. 14 in.

Minimum * 11 in. 11 in. 11 in.

Ignition Electric Piezo Electric Piezo Electric Piezo

Dimensions, Inches (HxWxD)

Heater 19 1/8 × 14 1/8 × 6 3/8 23 1/2 × 19 1/4 × 8 23 1/2 x 26 5/8 x 8

Carton 22 ×16 3/4 × 8 1/8 26 1/2 × 21 3/4 × 9 1/4 26 1/2 x 28 1/2 x 9 1/4

Weight (Pounds)

Heater 14.6 22.2 28.1

Shipping 17.6 26..2 33.1

MODEL MD100HBA MD200HBA MD300HBA

BTU (available) 10,000 20,000 30,000

Gas Type Using Natural Gas Using Natural Gas Using Natural Gas

Pressure Regulator Setting 4 in. W.C. 4 in. W.C. 4 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 10.5 in. 10.5 in. 10.5 in.

Minimum * 5 in. 5 in. 5 in.

Gas Type Using Propane Gas Using Propane Gas Using Propane Gas

Pressure Regulator Setting 9 in. W.C. 9 in. W.C. 9 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 14 in. 14 in. 14 in.

Minimum * 11 in. 11 in. 11 in.

Ignition Electric Piezo Electric Piezo Electric Piezo

Dimensions, Inches (HxWxD)

Heater 19 1/8 × 14 1/8 × 6 3/8 23 1/2 × 19 1/4 × 8 23 1/2 x 26 5/8 x 8

Carton 22 ×16 3/4 × 8 1/8 26 1/2 × 21 3/4 × 9 1/4 26 1/2 x 28 1/2 x 9 1/4

Weight (Pounds)

Heater 14.1 21.2 27.1

Shipping 17.6 25.2 32.1

3

PRODUCT SPECIFICATIONS

MODEL MD200TBA-BB MD300TBA-BB

BTU (available) 20,000 30,000

Gas Type Using Natural Gas Using Natural Gas

Pressure Regulator Setting 4 in. W.C. 4 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 10.5 in. 10.5 in.

Minimum * 5 in. 5 in.

Gas Type Using Propane Gas Using Propane Gas

Pressure Regulator Setting 9 in. W.C. 9 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 14 in. 14 in.

Minimum * 11 in. 11 in.

Ignition Electric Piezo Electric Piezo

Dimensions, Inches (HxWxD)

Heater 23 1/2 × 19 1/4 × 8 23 1/2 x 26 5/8 x 8

Carton 26 1/2 × 21 3/4 × 9 1/4 26 1/2 x 28 1/2 x 9 1/4

Weight (Pounds)

Heater 25.1 31

Shipping 29.1 36

MODEL MD200HBA-BB MD300HBA-BB

BTU (available) 20,000 30,000

Gas Type Using Natural Gas Using Natural Gas

Pressure Regulator Setting 4 in. W.C. 4 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 10.5 in. 10.5 in.

Minimum * 5 in. 5 in.

Gas Type Using Propane Gas Using Propane Gas

Pressure Regulator Setting 9 in. W.C. 9 in. W.C.

Inlet Gas Pressure* (inches of water) * For purposes of input adjustment.

Maximum 14 in. 14 in.

Minimum * 11 in. 11 in.

Ignition Electric Piezo Electric Piezo

Dimensions, Inches (HxWxD)

Heater 23 1/2 × 19 1/4 × 8 23 1/2 x 26 5/8 x 8

Carton 26 1/2 × 21 3/4 × 9 1/4 26 1/2 x 28 1/2 x 9 1/4

Weight (Pounds)

Heater 24.1 30

Shipping 28.1 35

4

IMPORTANT SAFETY INFORMATION

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, re, explosion, electrical shock,
and carbon monoxide poisoning.

Only a qualied installer, service agent, or local gas supplier may install and service this product.

WARNING: Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any

other appliance.

CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning resemble the u with headache,
dizziness and/or nausea. If you have these signs, heater may not be working properly. Get fresh air at once!

Have heater serviced. Some people - pregnant women, persons with heart or lung disease, anemia, those
under the inuence of alcohol, those at high altitude - are more affected by carbon monoxide than others.

NATURAL AND PROPANE/LP GAS: Natural and Propane/LP gas are odorless. An odor-producing agent is

added to the gas. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may
be present even though no odor exists.

WARNING: Any change to this heater or its controls can be dangerous.

WARNING: Do not use any accessories not approved for use with this heater.

WARNING: Carefully supervise young children when they are in the room with the heater.

WARNING: Make sure grill guard is in place before running heater.

WARNING: Keep the appliance area clear and free from combustible materials, gasoline, and other am

mable vapors and liquids.

WARNING: Due to high temperatures, the appliance should be located out of trafc and away from furniture
and draperies.

WARNING: Heater becomes very hot when running . Keep children and adults away from hot surfaces to
avoid burns or clothing ignition. Heater will remain hot for a time after shutoff. Allow surfaces to cool before

touching.

WARNING: Do not place clothing or other ammable material on or near the appliance. Never place any
objects in the heater.

1. This appliance is for use with only 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. Propane/LP supply tank(s) must be Placed

outdoors.

3. This heater shall not be installed in a bedroom or bathroom, or the place which the strong wind would shut down

the appliance.

4. This heater needs fresh air ventilation to run properly. This heater has an Oxygen Depletion Sensing (ODS)

safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for

Combustion and Ventilation, pages 9 through 11. If heater keeps shutting off, see Troubleshooting, pages 23

through 25.

5. Keep all air openings in front and bottom of heater clear and free of debris. This will ensure enough air for

proper combustion.

555

6. If heater shuts off, do not relight until you have provided fresh, outside air. If heater keeps shutting off, have it

serviced.

7. Do not run heater:

Where ammable liquids or vapors are used or stored.

•
Under dusty conditions.

•

8. 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.

9. Always run heater with control knob at PILOT/IGN, LOW or HIGH locked positions. Never set control knob be

tween locked positions. Poor combustion and higher levels of carbon monoxide may result.

10. Do not use heater if any part has been under water. Immediately call a qualied 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.

11.Turn off and unplug heater and let cool before servicing. Only a qualied service person should service and repair

heater.

12. Operating heater above elevations of 4,500 feet could cause pilot outage.

13. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. capacity.

QUALIFIED INSTALLING AGENCY

Only a qualied agency should install and replace gas piping, gas utilization equipment or accessories, and repair and
equipment servicing.The term “qualied agency” means any individual, rm, corporation, or company that either in

person or through a representative is engaged in and is responsible for:

a) Installing, testing, or replacing gas piping or

b) Connecting, installing, testing, repairing, or servicing equipment; that is experienced in such work; that is familiar

with all precautions required; and that has complied with all the requirement of the authority having jurisdiction.

66

PRODUCT FEATURES

SAFETY PILOT

This heater has a pilot with an Oxygen Depletion Sensing (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 an electronic piezo control system. This system requires AAA batteries (provided).

2 GAS OPTIONS CAPABLE

Your heater is equipped to operate on either Propane or Natural gas. The heater is shipped from the factory ready for

connecting to Propane. The heater can easily be changed to Natural gas by having your qualied installer follow the
instructions on page 15 and the markings on the heater.

THERMOSTATIC CONTROL ON THERMOSTAT MODEL

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.

State of Massachusetts: The installation must be made by a licensed plumber or gas tter in the Commonwealth
of Massachusetts. Sellers of unvented propane or natural gas-red 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 natural gas-red space heaters shall be prohibited in

bedrooms and bathrooms.

In the State of Massachusetts the gas cock must be a T-handle type. The State of Massachusetts requires that
a exible appliance connector cannot exceed three feet in length.

LOCAL CODES

Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The

National Fuel Gas Code, ANSI Z223.1/ NFPA 54

*Available from:

American National Standards Institute, lnc.
1430 Broadway

New York, NY 10018

.

National Fire Protection Association, lnc.

1 Batterymarch Park

Quincy, MA 02269-9101

7

PREPARING FOR INSTALLATION

Before beginning assembly or operation of the product, make sure all parts are present. Compare parts with package

contents list and diagram above. If any part is missing or damaged, do not attempt to assemble, install or operate the
product. Contact customer service for replacement parts.

Before installing heater, make sure you have the items listed below:

piping (check local codes)

•
sealant (resistant to natural gas and propane/LP gas)

•
equipment shutoff valve*

•
test gauge connection*

•
sediment trap

•
tee joint

•
pipe wrench

•

exible gas hose (check local codes)

•

* A CSA design-certied equipment shutoff valve with

1/8-inch NPT tap is an acceptable alternative to test
gauge connection. Purchase the optional CSA design-

certied equipment shutoff valve from your dealer.

UNPACKING

1. Remove heater from carton.

2. Remove all protective packaging applied to heater for shipping

3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

Figure 1 - Vent-Free Gas Heater

WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS

Water vapor is a by-product of gas combustion. An unvented room heater produces approximately one (1) ounce

(30 mL) of water for every 1,000 BTUs (.3 KWs) 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 applica­tions, the water vapor does not create a problem. In most applications, the water vapor enhances the low humidity

atmosphere experienced during cold weather.

The following steps will help ensure that water vapor does not become a problem.

1. Be sure the heater is sized properly for the application, including ample combustion air and circulation air.

2. If high humidity is experienced, a dehumidier 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.

88

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a conned space or unusually tight construction unless

provisions are provided for adequate combustion and ventilation air. Read the following instructions to ensure
proper fresh air for this and other fuel-burning appliances in your home.

Providing Adequate Ventilation

This heater shall not be installed in a room or space unless the required volume of indoor combustion air is provided
by the method described in the NATIONAL FUEL GAS CODE, ANSI Z223.1/NFPA 54, the INTERNATIONAL FUEL
GAS CODE, or applicable local codes.

The following are excerpts from National Fuel Gas Code, ANSI Z223.1/ NFPA 54. Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

The information on pages 9 through 11 will help you classify your space and provide adequate ventilation.

Conned and Unconned Space

The National Fuel Gas Code, ANSI Z223.1/NFPA 54 denes a conned space as a space whose volume is less than
50 cu. ft. per 1,000 BTU/hr (4.8 m^3 per kw) of the aggregate input rating of all appliances installed in that space and
an unconned space as a space whose volume is not less than 50 cubic feet per 1,000 BTU/hr (4.8 m^3 per kw) of the

aggregate input rating of all appliances installed in that space. Rooms connecting directly with the space in which the

appliances are installed*, through openings not furnished with doors, are considered a part of the unconned space.

This heater shall not be installed in a conned space or unusually tight construction unless provisions are provided for

adequate combustion and ventilation air.

* Adjoining rooms are connecting only if there are doorless passageways or ventilation grills between them.

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 dened as construction where:

Walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of

a)

one perm (6×10

Weather stripping has been added on openable windows and on doors and

b)

Caulking or sealants are applied to areas such as joints around window and door frames, between sole plates

c)

and oors, 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”. If your home does not meet all of the three criteria above, proceed to “Determining Fresh-Air Flow For

Heater Location”.

-11

kg per pa-sec-m2) or less with openings gasketed or sealed and

99

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Conned or Unconned Space

Use this worksheet to determine if you have a conned or unconned 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 =

Example: Space size 20 ft. (length) × 16 ft. (width)×8 ft. (ceiling height) =2560 cu. 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)

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 heater logs

Other gas appliances* +

Total =

*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
BTU/hr
BTU/hr
BTU/hr
BTU/hr
BTU/hr
BTU/hr

Example:

Gas water heater 30,000 BTU/hr
Vent-free heater + 26,000 BTU/hr
Total = 56,000 BTU/hr

cu. ft. (volume of space)

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)

56,000 BTU/hr (actual amount of BTU/hr used)

The space in the above example is a conned 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:

Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space,

a)

remove door to adjoining room or add ventilation grills between rooms. See “ Ventilation Air From Inside Building ”

on next page.

Vent room directly to the outdoors. See “ Ventilation Air From Outdoors ” on next page.

b)

c) Install a lower BTU/hr heater if lower BTU/hr size makes room unconned. If the actual BTU/hr used is less

than the maximum BTU/hr the space can support, the space is an unconned space. You will need no

additional fresh air ventilation.

1010

WARNING: If the area in which the heater

may be operated is smaller than that dened as an
unconned 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.

WARNING: If the area in which the heater may be

operated does not meet the required volume for indoor
combustion air, combustion and ventilation air shall
be provided by one of the methods described in the
NATIONAL FUEL GAS CODE, ANSI Z223.1/
NFPA 54, the INTERNATIONAL FUEL GAS CODE, or
applicable local codes.

Ventilation Air From lnside Building

This fresh air would come from an adjoining unconned
space. When ventilating to an adjoining unconned

space, you must provide two permanent openings: one
within 12 inches of the ceiling and one within 12 inches

of the oor on the wall connecting the two spaces

(see options 1 and 2, Figure 2). You can also remove
the door into adjoining room (see option 3, Figure 2).
Follow the National Fuel Gas Code. ANSI Z223.1/

NFPA 54

, Air for Combustion and Ventilation for

required size of entilation grills or ducts.

Figure 2 - Ventilation Air from Inside Building

NOTE: Base no t i ncluded. Not for use in
bedrooms or bathrooms.

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or

ducts. You must provide two permanent openings: one
within 12 inches of the ceiling and one within 12 inches

of the oor. 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, ANSI Z223.1/ NFPA 54, 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. Rework worksheet, adding the space of
the adjoining unconned space. The combined spaces

must have enough fresh air to supply all appliances in
both spaces.

Figure 3 - Ventilation Air from Outdoors

1111

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.

CAUTION: If you install the heater in a home garage:

Heater pilot and burner must be at least 18 inches above the oor.

•
Place heater where moving vehicle will not hit it.

•

WARNING: A qualied service person must install heater. Follow all local codes.

WARNING: Never install the heater

in a bedroom or bathroom

•
in a recreational vehicle

•

where curtains, furniture, clothing, or other ammable objects are less than 36 inches from the front, top, or

•
sides of the heater

in high trafc areas

•
in windy or drafty areas

•

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 uids, oil or kerosene lamps, etc.) in the air exist, may cause walls to discolor.

IMPORTANT: Vent-free heaters add moisture to the air. Although this is benecial, installing heater in rooms
without enough ventilation air may cause mildew to form too much moisture. See Air for Combustion and
Ventilation, pages 9 through 11.

Check Gas Type

Be sure your gas supply is right for your heater.
Otherwise, call dealer where you bought the
heater for proper type heater.

Clearances To Combustibles

Carefully follow the instructions below. This
heater is a freestanding unit designed to be
mounted on a wall or set directly on the oor.

WARNING: Maintain the minimum clearances
shown in Figure 4. If you can, provide greater

clearances from oor, ceiling, and joining wall.

LOCATING HEATER

This heater is designed to be mounted on a wall.

For convenience and efciency, install heater:

1) where there is easy access for operation,
inspection, and service.

2) In the coldest part of room.

Figure 4 - Mouting clearances as viewed from

front of heater (inches)

1212