Mr. Heater MHBF30NGT, HSBF30NGT, TSBF30NGT, MHBF6NG, MHBF10NG Operating Instruction

...

Operational Instructions Only - No Parts List

INSTALLATION INSTrucTIONS ANd OwNer’S MANuAL

reAd INSTrucTIONS c AreFuLLY: Read and follow all instructions. Place instruc-

tions in a safe place for future reference. Do not allow anyone who has not read these instructions to assemble, light, adjust or operate the heater.

UNVENTED NATURAL GAS FIRED ROOM HEATER

Blue Flame Heaters Plaque Heaters

Model # Burn Rate Model # Burn Rate

MHBF6NG 6,000 Btu/hr MHIR10NG/HSIR10NG/TSIR10NG 10,000 Btu/hr MHBF10NG/HSBF10NG/TSBF10NG 10,000 Btu/hr MHIR20NGT/HSIR20NGT/TSIR20NGT 20,000 Btu/hr MHBF20NGT/HSBF20NGT/TSBF20NGT 20,000 Btu/hr MHIR30NGT/HSIR30NGT/TSIR30NGT 30,000 Btu/hr MHBF30NGT/HSBF30NGT/TSBF30NGT 30,000 Btu/hr

MHBF30NGT/ HSBF30NGT/ TSBF30NGT

MHBF20NGT/ HSBF20NGT/ TSBF20NGT

MHBF6NG/ MHBF10NG/ HSBF10NG/ TSBF10NG

MHIR30NGT/ HSIR30NGT/ TSIR30NGT

WARNING: If the information in this manual is not followed exactly, a re 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 the vicinity of this or any other appliance.

- WHAT TO DO IF YOU SMELL GAS

• Shut off gas supply

• Do not try to light any appliance

• Do not touch an 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.

MHIR20NGT/ HSIR20NGT/ TSIR20NGT

MHIR10NG/ HSIR10NG/ TSIR10NG

WARNING: This is an unvented gas-red heater. It uses air (oxygen) from the room in which it is installed. Pro-

visions for adequate combustion and ventilation air must be provided. Refer to Fresh Air for Combustion and Ventilation section on page 3 of this manual.

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 qualied installer, service agency, or gas supplier.

ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 · 216-916-3000

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

70574 Rev.F 04/08

This appliance may be installed in an aftermarket* permanently 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 any other gas.

*Aftermarket completion of sale, not for the purpose of resale, from the manufacturer.

WARNINGS

IMPORTANT: Read this owner’s manual carefully

and completely before trying to assembly, 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.

WARNING: This appliance is equipped for (natural or propane) gas. Field conversion is not permited.

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 ammable

material on or near the appliance. Never place any objects on the heater.

• Due to high temperatures, heater should be

kept out of trafc and away from furniture and draperies.

• Surface of heater becomes very hot when run-

ning. Keep children and adults away from hot surfaces to avoid burns or clothing ignition.

Heater will remain hot for a time after shut-

down. Allow heater surfaces to cool before handling.

• Young children should be carefully supervised

when they are in the same room with heater.

• Make sure grille guard is in place before

running heater. If screen or grille guard is removed for servicing it must be replaced prior to operating the heater.

• Keep the appliance area clear and free from

combustible materials, gasoline, and other ammable vapors and liquids.

safety shutoff system shuts down the heater if not

enough fresh air is available. See Fresh Air for Combustion and Ventilation, pages 3 through 5.

5. Keep all air openings in heater clear, free of debris or any blockage. This will insure that enough air for proper combustion enters the heater.

6. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, it requires servicing.

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

8. Do not run heater:

• Where ammable liquids or vapors are used or stored

• During dusty conditions.

9. 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.

10.Do not use heater if any part has been underwater. 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 underwater.

11.Operating heater above elevations of 4,500 feet could cause pilot/ODS to shutdown heater.

12.Always run heater with control knob in a locked position. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result if control knob is left between locked positions.

DANGER: Carbon monoxide poisoning may lead to death.

PRECAUTIONS:

1. BF-6 NG may be installed in any room, but not any place where a strong wind would shut down the appliance.

2. BF-10 NG and IR-10NG may be installed in a bedroom, but not a bathroom, or any place where a strong wind would shut down the appliance.

3. BF-20 NGT, BF-30 NGT, IR-20 NGT and IR-30 NGT may not be installed in a bedroom or bathroom, or any place where a strong wind would shut down the appliance.

4. This heater needs outside ventilation air to run properly. The Oxygen Depletion Sensor (ODS)

Unvented Natural Gas Fired Room Heater

Carbon Monoxide Poisoning:

Early signs of carbon monoxide poisoning resemble the u, 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 inuence of alcohol, and those at high altitudes.

Natural Gas:

Raw natural gas is odorless. An odor making agent is added to natural gas, which helps you detect a natural gas leak. However the odor added to natural gas can fade. So natural gas may be present even though no

Installation Instructions and Owner’s Manual

odor is detected. 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

Fan

Ignitor Button

Blower Switch

Burners

Grill

Front Panel

Room Temperature Thermometer LED

Control Knob

Heater Cabinet

Figure 1

SAFETY DEVICE

This heater has a pilot with an Oxygen Depletion Sensor (ODS) safety shut off system. The ODS/pilot shuts off the heater if there is not enough fresh air.

IGNITION SYSTEM

PIEZO: BF6NG/BF10NG / IR10NG – The heater is

equipped with a piezo manual ignitor. This system requires no matches, batteries, or other source to light heater.

Electronic: BF20NGT/BF30NGT/IR20NGT/IR30NGT

– The heater is equipped with an electronic manual ignitor. This system requires no matches, or other source to light heater, but does require one AA battery to operate ignitor.(AA Battery included).

To install or replace battery unscrew the ignitor cap (red button), insert battery positive (+) terminal up

and replace cap.

(AA Battery included)

THERMOSTATIC CONTROL ON THERMOSTAT MODELS

(BF20NGT, BF30NGT, IR20NGT and IR30NGT)

These heaters have a control valve with a thermostat

sensing bulb. This results in the greatest heater comfort and may result in lower bills.

These heaters also include an electrical blower. The blower switch has three positions: MANUAL, OFF and AUTO. In AUTO, the blower will turn on and off as the heater cycles on and off. On MANUAL, the blower will run continuously. To turn blower off, use the OFF position.

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.

FRESH 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 insure proper fresh air for this and other fuel-burning appliances in your home.

ESTABLISHING 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 classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

This heater must not be installed in a conned space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. The information on pages 3 through 5 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

If your home meets all of the three following criteria you must provide additional fresh air. See Ventilation Air from Outdoors, page 5.

Unusually tight construction is dened as construction

where:

a. Walls and ceilings exposed to the outside atmo-

sphere have a continuous water vapor retarder with a rating of one perm (6 x 10 less with openings gasketed or sealed and

b. Whether stripping has been added on openable win-

dows and doors, and

c. Caulking or sealants are applied to areas such as

joints around windows and door frames, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.

If you home does not meet all of the three criteria

above, see Determing the Type of Heater Location Space, page 4.

-11

kg per pa-sec-m2) or

LOCAL CODES

Install and use heater with care.

Installation must conform to local codes or in the ab-

sences of local codes, use the latest edition of National

Fuel Gas Code ANSI Z223.1/NFPA 54.

Unvented Natural Gas Fired Room Heater

Conned Space and Unconned Space

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

denes a conned 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

Installation Instructions and Owner’s Manual

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 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 unconned space.

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

DETERMINING THE TYPE OF HEATER LOCATION SPACE:

Use this method to determine if you have a conned or unconned space.

Note: the space includes the room in which you install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

1. Find the volume of the space by multiplying room length x width x height.

Example: Space size 18ft (length) x 18ft. (width) x 8ft. (height) = 2592

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.

Example: 2592 cu.ft. (volume of space) / 50 cu.ft. =

51.8 or 51,800 (maximum Btu/hr the space

can support)

WARNING: If the area in which the heater may be operated is smaller than dened as an unconned space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by the methods described in the National

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

5.3 or applicable local codes.

3. Add the Btu/hr of all the fuel-burning appliances in the space such as, Vent–free heater, Gas water heater, Gas furnace, Vented gas heater, Gas replace logs, and Other gas appliances*

*Do not include direct-vent gas appliances. Directvent draws combustion air from the outdoors and vents to the outdoors.

Example: Gas water heater 40,000 Btu/hr

Vent Free Heater + 20,000 Btu/hr

Total =60,000 Btu/hr

4. Compare the maximum Btu/hr the space can support with the actual amount of Btu/hr used.

Example: 51,800 Btu/hr (maximum Btu/hr the space can support)

60,000 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:

A. Rework worksheet, and the space of an adjoining

room. If the extra space provides an unconned space, remove door to adjoining room or add ventilation grills between the rooms. See Ventilation Air From Inside Building (Fig. 2).

B. Vent room directly to the outdoors. See Ventilation

Air From Outdoors (Fig. 3).

C. Install a lower Btu/hr heater if lower Btu/hr size

makes room unconned.

If 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.

VENTILATION AIR

Ventilation from Inside Building

This fresh air would come from an adjoining unconned space. When ventilation to an adjoining unconned space, you must provide two permanent openings: one within 12” of the ceiling and one within 12” of the oor on the wall connecting the two spaces (see options 1 & 2 of g. 2). You can also remove door into adjoining room (see option3, g 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.

12”

Ventilation Gills into Adjoining Room Option 1

Or remove door into Adjoining Room Option 3

Ventilation Gills into Adjoining Room - Option 2

12”

Figure 2.

WARNING: Rework worksheet, adding the space of the adjoining unconned space. The combined space must have enough fresh air to supply all appliance in both spaces.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

OUTLET AIR

VENTILATION AIR

VENTILATED

ATTIC

• Ground joint union

• Test gauge connection*

• Sediment trap

OUTLET AIR

INLET AIR

VENTILATION CRAWL SPACE

TO ATTIC

TO CRAWL SPACE

Figure 3.

Ventilation from Outdoors

If necessary provide extra fresh air by using ventilation grills or ducts. Connect these items directly to the outdoors or spaces open to the outdoors. These 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 into attic. If attic has a thermostat-controlled power vent, heated air entering the attic will activate the power vent.

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 from too much moisture. See Fresh Air for Combustion and Ventilation, pages 3 through

INSTALLATION

NOTICE: This heater is intended for the use as supple-

mental 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 for the duration of the outage.

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

CHECK GAS TYPE

Use only natural gas. If your gas supply is not natural gas, do not install heater. Call dealer where you bought

heater for proper type heater.

THIS INSTALLATION REQUIRES:

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

• Piping (check local codes)

• Sealant (resistant to natural gas)

• Equipment shutoff valve*

• Tee joint

• Pipe wrench

*A CSA/AGA certied equipment shutoff valve with 1/8” NPT tap is an acceptable alternative to test gauge connection. Purchase a CSA/AGA certied equipment shutoff valve from your dealer.

LOCATING HEATER

This heater is designed to be mounted on the wall. The heater can also be located on a non-combustible oor, away from a wall by using the oor mounting stands included with the heater. If installed on combustible ooring such as carpeting, tile or other combustible material other than wood ooring, the heater must be placed on a wood panel the full width and depth of the appliance.

For convenience and efciency, install the heater:

• Where there is easy access for operation,

inspection, and service

• In the coldest part of the room.

• If planning to use fan, locate heater near an

electrical outlet.

CAUTION: If you install the heater in a home garage: Heater pilot and burner must be at least 18 inches above oor . 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 covering or operating heater where impurities (such as tobacco smoke, aromatic candles, cleaning uids, oil or kerosene lamps, etc.) are present in the air may discolor walls.

WARNING: Never install the heater:

• In a bathroom; except MHBF6NG

• In a bedroom (IR20NGT, IR30NGT, BF20NGT or BF30NGT)

• 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.

• As a replace insert

• In high-trafc areas

• In windy or drafty areas

WARNING: Heater must be mounted to maintain the minimum clearances shown in Figure 4. If possible, provide greater clearances from the oor, ceiling, and joining walls.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

36” min. from

6” Min from

adjoining

walls

Left Side

Floor

2” min. to top surface of carpet, tile or other combustible material

ceiling

Right

Side

Figure 4

FASTENING HEATER TO WALL

Mounting Bracket

The mounting bracket in located on the back panel of heater (see gure 5). It has been taped there for shipping. Remove mounting bracket from back panel.

1. Attach to wall studs

2. Attach to wall anchor

Attaching to Wall Stud:

This way is the best providing the strongest mounting in wood frame houses.

Attaching to Wall Anchor:

This way allows you to attach mounting bracket to hollow walls (wall areas between studs) or to solid walls (concrete or masonry).

Decide which way best suits your needs. Either method will provide a secure hold for the mounting bracket.

1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level. For wall stud mounting locate one end of the mounting bracket over a wall stud.

WARNING: Maintain minimum clearances shown in

gure 7. If you can, provide greater clearances from the oor and joining wall.

2. Mark screw locations on wall (see gure 7).

3. Remove tape and mount bracket from wall.

6-1/2” Min. 10,000 BTU 10-1/4” min 20,000-30,000 BTU

Mounting Bracket

Figure 5

Removing Front Panel of Heater

1. Remove three screws on bottom front of front panel.

2. Pull bottom of front panel forward, then down (see gure 6)

Figure 6

Attaching Mounting Bracket to Wall

Use holes on each end of mounting bracket to attach bracket to wall. These holes are 16 inches apart. Attach mounting bracket to wall in one of two following ways.

Unvented Natural Gas Fired Room Heater

16” (Lg) 12-9/64” (Sm)

Adjoining Wall

Mark mounting hole locations and drill holes where indicated. Allow for minimum clearances

17-1/2” Min.

Figure 7

Attaching to Wall Stud:

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 holes on each end of bracket with hole 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.

Attaching to Wall using Anchor:

For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry)

Note: Wall anchors, mounting screws, and spacer are in hardware package. The hardware package is provided with heater.

Installation Instructions and Owner’s Manual

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 gure 8 below.

Figure 8.

3. Insert wall anchor (wings rst) into hole. Tap anchor ush to wall.

4. For thin walls (1/2” or less) insert red key into wall anchor.

5. Place mounting bracket onto wall. Line up holes 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 rmly fastened to wall.

Placing Heater on Mounting Bracket

1. Locate two horizontal slots on back pane of heater (see gure 9).

2. Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mounting bracket.

4. If installing bottom mounting screw into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching to Wall using Anchor. If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64” drill bit.

5. Re-place heater onto mounting bracket.

6. Place spacers between bottom mounting holes and wall anchor or drilled hole.

7. Hold spacer in place with one hand. With the other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.

8. Tighten both screws until heater is rmly secured to wall. Do not over tighten.

Note: Do not re-place front panel at this time. Replace front panel after making gas connections and checking for leaks.

FLOOR MOUNTING AWAY FROM WALL:

Horizontal Slots

Mounting Bracket mounted to wall

Figure 9.

Installing Bottom Mounting Screws

1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see gure 10).

Figure 10

2. Mark screws locations on wall.

3. Remove heater from mounting bracket.

Figure 11

Installing Support Feet (see gure 11)

1. Lay heater onto table on its back with bottom edge overhanging table edge.

2. Securely attach feet to bottom of heater using 2 – self-tapping screws each.

Note: Feet should have long end going out the front of heater, and the edge coinciding with side of heater. If feet overhang side of the heater, switch leg location.

3. Place heater on non-combustible surface (see Locating Heater above) before proceeding with gas connection. If this will be a permanent location, heater may be locked into position using anchoring holes in mounting feet.

Note: Use of oor mounting feet will require you to use a 3/8 NPT street elbow to make gas connection.

CONNECTING TO GAS SUPPLY

WARNING: A qualied service person must con-

nect heater to gas supply. Follow all local codes.

Unvented Natural Gas Fired Room Heater

Installation Instructions and Owner’s Manual

WARNING: This appliance requires a 3/8” NPT

(National Pipe Thread) inlet connection to the pressure regulator. Use of oor mounting feet will require you to use a 3/8 NPT street elbow to make gas connection.

CAUTION: Never connect heater to private (non-utility) gas well. This gas is commonly known as well-head gas.

IMPORTANT: Check your gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.

CAUTION: Use only new black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of larger enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Installation must include an equipment shutoff valve, union and plugged 1/8” NPT tap. Locate NPT tap within reach of test gauge hookup. NPT tap must be upstream from heater (see gure 12).

Pressure Regulator

3/8” NPT Pipe Nipple

Ground Joint Union

Equipment Shutoff Valve

From Gas Meter (4” W.C. to 10.5” W.C. Pressure)

Tee Joint

Pipe Nipple

Cap

3” Minimum

Heater Cabinet

Test Gauge Connection

Reducer Bushing to 1/8” NPT

1/8” NPT Plug Tap

Sediment Trap

Figure 12

*A CSA/AGA certied equipment shutoff valve with 1/8” NPT tap is an acceptable alternative to test gauge connection. Purchase the CSA/AGA certied equipment shutoff valve from your dealer. See Accessories, page

17.

IMPORTANT: Install an equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater fuel train.

CAUTION: Use pipe joint sealant that is resistant to natural gas.

Install sediment trap in supply line as shown in gure

12. Locate sediment trap where it is within reach for cleaning. A sediment trap traps moisture and con-

Unvented Natural Gas Fired Room Heater

taminants. This keeps them from going into heater. If sediment trap is not installed or is installed improperly, heater may not run correctly.

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or ttings.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for

leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open ame to check for a gas leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test pressure in Excess of ½ psig (3.5kPa)

1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of ½ psig will damage heater regulator.

2. Cap off open end of gas pipe where equipment shutoff valve was connected.

3. Pressurize supply piping system by either using compressed air or opening main gas valve on or near gas meter.

4. Check all connections and joints in 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. Depressurize and relieve pressure in supply piping system.

7. Reconnect heater and equipment shutoff valve to gas supply.

8. Reconnected ttings must be checked for leaks in next section.

Test Pressure Equal To or Less Than ½ psig (3.5 kPa)

1. Close equipment shutoff valve (see gure 13).

2. Pressurize supply piping system by either using compressed air or opening main gas valve on or near gas meter.

3. Check all joints from the gas meter to equipment shutoff valve (see gure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4. Correct all leaks at once.

5. Depressurize and relieve pressure from supply piping system.

Installation Instructions and Owner’s Manual

+ 16 hidden pages