Procom MD300HGA Manuale utente

CAUTION - FOR YOUR SAFETY

Vent-Free Gas Wall Heater

Blue Flame

PC-ML062-03D-0904

Model # MD300HGA

MD300TGA

WARNING:This appliance is

equipped for (Natural and Propane)

gas. Field conversion is not permitted

other than between natural or

propane 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.

-- 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 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 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 6 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.

Questions about installation, operation, or troubleshooting? Before returning to your retailer,

call customer service department toll-free at (877)886-5989.

TABLE OF CONTENTS

Important Safety Information ..............................................................................................................................3

Product Features................................................................................................................................................4

Preparing for Installation.....................................................................................................................................5

Air for Combustion & Ventilation.........................................................................................................................6

Installation ........................................................................................................................................................9

Operation .........................................................................................................................................................15

Care and Maintenance .................................................................................................................................19

Troubleshooting .................................................................................................................................20

Replacement Parts.............................................................................................................................22

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.

PRODUCT SPECIFICATIONS

TABLE OF CONTENTS

MODEL MD300HGA MD300TGA

Gas Type Natural Only Propane/LP Only Natural Only Propane/LP Only

Input rating (BTU/Hr)

MAX. 30,000 28,000 30,000 28,000

MIN. 15,000 14,000 15,000 14,000

Ignition Electric Piezo Electric Piezo Electric Piezo Electric Piezo

Pressure

Regulator

Setting

4 in. W.C. 9 in. W.C. 4 in. W.C. 9 in. W.C.

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

Maximum 10.5 in. 14 in. 10.5 in. 14 in.

Minimum 5 in. 11 in. 5 in. 11 in.

Dimensions, Inches (H x W x D)

Heater 23 1/2 x 26 5/8 x 8 23 1/2 x 26 5/8 x 8 23 1/2 x 26 5/8 x 8 23 1/2 x 26 5/8 x 8

Carton 26 1/2 x 28 1/2 x 9 1/4 26 1/2 x 28 1/2 x 9 1/4 26 1/2 x 28 1/2 x 9 1/4 26 1/2 x 28 1/2 x 9 1/4

Weight (Pounds)

Heater 27.6 27.6 29.6 29.6

Shipping 32.6 32.6 34.6 34.6

333

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 6 through 8. If heater keeps shutting off, see Troubleshooting, pages 20

through 22.

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

proper combustion.

IMPORTANT SAFETY INFORMATION

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.

•

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

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 13 and the markings on the heater.

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

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.

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.

•

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.

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.

AIR FOR COMBUSTION AND VENTILATION

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

sions 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 6 through 8 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

one perm (6×10-11kg per pa-sec-m2) or less with openings gasketed or sealed and

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

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

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”.

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 = cu. ft. (volume of space)

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.

*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)

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,

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.

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.

Example:

Gas water heater 30,000 BTU/hr

Vent-free heater + 26,000 BTU/hr

Total = 56,000 BTU/hr

BTU/hr

Vent-free heater

Gas water heater*

Gas furnace

Vented gas heater

Gas heater logs

Other gas appliances* +

Total =

Figure 2 - Ventilation Air from Outdoors

Figure 1 - Ventilation Air from Inside Building

NOTE: Base not included. Not for use in

bedrooms or bathrooms.

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 1). You can also remove

the door into adjoining room (see option 3, Figure 1).

Follow the National Fuel Gas Code. ANSI Z223.1/

NFPA 54, Air for Combustion and Ventilation for

required size of entilation grills or ducts.

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 - Mouting clearances as viewed from

front of heater (inches)

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

•

INSTALLATION

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 6 through 8.

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 3. If you can, provide greater

clearances from oor, ceiling, and joining wall.

Figure 4 - Mounting Bracket Location

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.

FASTENING HEATER TO WALL

Mounting Bracket

The mounting bracket is located on back panel of heater (see Figure 4).

It has been taped there for shipping. Remove mounting bracket from

back panel.

Removing 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 5).

Methods For Attaching Mounting Bracket To Wall

Use only the last hole on each end of mounting bracket to attach bracket

to wall. Attach mounting bracket to a wall only in one of two ways:

1. Attaching to wall stud: This method provides the strongest hold.

Insert mounting screws through mounting bracket and into wall studs.

2. 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 3. If you can, provide greater clearances from oor

and joining wall.

2. Mark screw locations on wall (see Figure 6).

Note: Mark only last hole on each end of mounting bracket. Insert mounting screws through these holes only.

3. Remove tape and mounting bracket from wall.

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 Wall Stud Method

For attaching mounting bracket to wall studs:

1. Drill holes at marked locations using 9/64-inch 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 rmly fastened to wall studs. Figure 6 - Mounting Bracket

Clearances (inches)

Figure 5 - Mounting Bracket

Clearances (inches)

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