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11

105735

OWNER’S MANUAL

OPERATING HEATER

FOR  YOUR

SAFETY READ

BEFORE LIGHTING

 WARNING: If you do not fol-

low these instructions exactly, a
fire or explosion may result caus-
ing property damage, personal
injury or loss of life.

A. This appliance has a pilot which must

be lighted by hand. When lighting the
pilot, follow these instructions
exactly.

B. BEFORE LIGHTING smell all

around the appliance area for gas. Be
sure to smell next to the floor because
some gas is heavier than air and will
settle on the floor.

WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do

not use any phone in your building.

• Immediately call your gas supplier

from a neighbor’s phone. Follow
the gas supplier’s instructions.

• If you cannot reach your gas sup-

plier, call the fire department.

C. Use only your hand to push in or turn

the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.

D. Do not use this appliance if any part

has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been un-
der water.

LIGHTING

INSTRUCTIONS

1.

STOP! Read the safety information
above.

2.

Make sure manual shutoff valve is
fully open.

  CAUTION: Do not try to ad-

just heating levels by using the
manual shutoff valve.

Figure 15 - Control Knob In The OFF
Position

OFF

HIGH

PILOT

LOW

IGNITOR

Ignitor Button

Control Knob

Figure 16 - Pilot

3.

Turn control knob clockwise 
to the OFF position (see Figure 15).

4.

Wait five (5) minutes to clear out any
gas. Then smell for gas including
near the floor. If you smell gas,
STOP! Follow “B” in the safety in-
formation at left. If you don’t smell
gas, go to the next step.

5.

Press in control knob and turn coun-
terclockwise 

 to the PILOT

position. Keep control knob pressed
in for five (5) seconds (see Figure 15).

Note:

 You may be running this

heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds. This will allow air to
bleed from the gas system.
• If control knob does not pop up

when released, contact a qualified
service person or gas supplier for
repairs.

6.

With control knob pressed in, push
down and release ignitor button. This
will light pilot. The pilot is attached
to the front of burner. The burner
and pilot are located behind the heat
shield. If needed, keep pressing igni-
tor button until pilot lights.

Note:

 If pilot does not stay lit, refer

to Troubleshooting, pages 13 through
15. Also contact a qualified service
person or gas supplier for repairs.
Until repairs are made, light pilot
with match. To light pilot with match,
see Manual Lighting Procedure
.

7.

Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.

Note:

 If pilot goes out, repeat steps

3 through 7.

8.

Turn control knob counterclockwise

 to the LOW position. The

main burner should light. Set control
knob to any heat level between HIGH
and LOW. To turn control knob from
LOW to a higher setting, press in the
control knob and turn counterclock-
wise 

.

Note:

 Both HIGH and LOW are

locked positions. You must press in
control knob before turning it from
these positions.

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1.

Turn control knob clockwise 
to the PILOT position.

2.

Press in control knob and turn clock-
wise 

 to the OFF position.

3.

Turn off all electric power to the ap-
pliance if service is to be performed.

Shutting Off Burner Only (pilot
stays lit)

Turn control knob clockwise 

 to

the PILOT position.

1.

Remove front panel (see Figure 5,
page 8).

2.

Follow steps 1 through 5 under Light-
ing Instructions
.

3.

With control knob pressed in, strike
match. Hold match to pilot until pi-
lot lights.

4.

Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Follow
step 8 under Lighting Instuctions
.

5.

Replace front panel.

MANUAL LIGHTING

PROCEDURE

Thermocouple

Ignitor Electrode

Pilot Burner

Содержание MBN20LB

Страница 1: ...ervice agency or the gas supplier MBN20LB This appliance may be installed in an aftermarket manufactured mobile home where not prohibited by state or local codes Aftermarket Completion of sale not for...

Страница 2: ...lot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation pages 4 through 6 6 Keep all air openings in front and bot tom of heat...

Страница 3: ...al Fire Protection Association Inc Batterymarch Park Quincy MA 02269 UNPACKING 1 Remove heater from carton 2 Remove all protective packaging ap plied to heater for shipment 3 Check heater for any ship...

Страница 4: ...ating of one perm 6 x 10 11 kg per pa sec m2 or less with open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to ar...

Страница 5: ...el burning appliances in the space Vent free heater ___________________Btu Hr Gas water heater ___________________Btu Hr Gas furnace ___________________Btu Hr Vented gas heater ___________________Btu...

Страница 6: ...FPA 54 ANS Z223 1 Section5 3 AirforCombustionand 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 thermo...

Страница 7: ...furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater as a fireplace insert in high traffic areas in windy or drafty areas You can locate mode...

Страница 8: ...acing Heater On Mounting Bracket 1 Locate two horizontal slots on back panel of heater 2 Place heater onto mounting bracket Slide horizontal slots onto stand out tabs on mounting bracket INSTALLATION...

Страница 9: ...is will prevent excess sealant from going into pipe Excess sealant in the pipe could result in clogged heater valves Typical Inlet Pipe Diameters 20 000 Btu Hr models 3 8 or greater 30 000 Btu Hr mode...

Страница 10: ...gas supply Check reconnected fittings for leaks TestPressuresEqualToorLessThan 1 2 PSIG 1 Close manual shutoff valve see Fig ure 13 2 Pressurize supply piping system by ei ther using compressed air or...

Страница 11: ...rol knob pressed in for five 5 seconds see Figure 15 Note You may be running this heater for the first time after hook ing up to gas supply If so the con trol knob may need to be pressed in for 30 sec...

Страница 12: ...ect Pilot Flame Pattern BURNER FLAME PATTERN Figure 19 shows a correct burner flame pattern Figure20showsanincorrectburner flame pattern The incorrect burner flame patternshowsyellowtippingoftheflame...

Страница 13: ...t flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot 6 Thermocouple damaged 7 Control valve damaged 1 Burner orifice...

Страница 14: ...er blocked 4 Dirty or partially clogged burner orifice 1 When heated vapors from furniture pol ish wax carpet cleaners etc turn into white powder resdue REMEDY 1 Clean burner see Cleaning and Mainte n...

Страница 15: ...Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statement above 1 Not enough combustion ventilation air OBSERVED PROBLEM Heater produces a clicking tic...

Страница 16: ...heater will not produce specified heat When Gas Quality Is Bad pilot will not stay lit burner will produce flames and soot heater will backfire when lit You may feel your gas pressure is too low or g...

Страница 17: ...00A Includes ON OFF switch Note Use only original replacement parts Thiswillprotectyourwarrantycoveragefor parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product...

Страница 18: ...18 105735 VENT FREE NATURAL GAS HEATERS BLUE FLAME MBN20LB 12 1 12 2 ODS Pilot 1 2 3 4 5 6 8 8 9 10 10 11 12 13 14 17 19 25 21 23 24 7 22 27 26 20 16 18 15 MBN20LB ILLUSTRATED PARTS BREAKDOWN...

Страница 19: ...49 01 Nut M5 2 12 100701 01 ODS Pilot Assembly 1 12 1 098514 01 Thermocouple 1 12 2 098594 01 Ignitor Electrode 1 13 103446 01 Burner 1 14 099387 05 3 16 Pilot Tubing 1 15 103845 06 Injector 1 16 0990...

Страница 20: ...hed with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of...

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