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18

Installation Instructions and Owner’s Manual

Unvented Natural Gas Vent Free Room Heaters

 

ITEM   PART NO.  

 

 

 

DESCRIPTION  

QTY. 

  

    IR20 NG 

  BF20 NG 

 IR30 NG 

  BF30 NG 

  

 

39 

70677   

– 

 

-- 

 

– 

 

Burner Plaques, 20 

 

 

3

40 

-- 

 

– 

 

70678   

– 

 

Plaques Gasket, 30 

 

 

4

41 

70678   

– 

 

-- 

 

– 

 

Plaques Gasket, 20 

 

 

3

42 

70701   

70701   

70701   

70701   

Ignition Cap 

 

 

 

1

44  

70597   

70597   

70597   

70597   

3/8” FTP x 3/8” MPT Elbow

45 

70590   

70590   

70590   

70590   

AA Battery

70680   

70680   

70680   

70680   

Power Cord 

 

 

 

1

70679   

70679   

70679   

70679   

Strain Relief Grommet 

 

 

1

70689   

– 

 

70692   

– 

 

Right Burner Gas Tube 

 

 

1

70690   

– 

 

70693   

– 

 

Right Middle Gas Burner Tube 

 

1

– 

 

– 

 

70598   

– 

 

Left Middle Gas Burner Tube 

 

1

70691   

– 

 

70694   

– 

 

Left Burner Gas Tube 

 

 

1

70695   

70695   

70696   

70696   

ODS Gas Tube Assembly   

 

1

70697   

70697   

70697   

70697   

Regulator to Thermostat Valve Tube Ass’y  1

70698   

– 

 

70698   

– 

 

Thermostat Valve to Manifold Tube   

1

70341   

70341   

70341   

70341   

Ignitor Wire 

 

 

 

1

70699   

– 

 

70699   

– 

 

Gas Manifold Nut  

 

 

1

70342   

70342   

70342   

70342   

Hardware Kit 

 

 

 

1

70343   

70349   

70345   

70346   

CSA Label 

 

 

 

1

70349   

70349   

70349   

70349   

Gas Instruction Decal 

 

 

1

70350   

70350   

70350   

70350   

Inside Warning Label 

 

 

1

70351   

70351   

70351   

70351   

Thermostat Sensing Bulb Clip 

 

2

** Not sold separately – Must purchase Assembly 

* Items not shown

Содержание MHVFB20T NG

Страница 1: ...on air must be provided Refer to Fresh Air for Combustion and Ventilation section on page 4 of this manual WARNING Improper installation adjustment alteration service or maintenance can cause injury o...

Страница 2: ...able 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 becom...

Страница 3: ...air openings in heater clear free of debris or any blockage This will insure that enough air for proper combustion enters the heater 4 If heater shuts off do not relight until you provide fresh outsi...

Страница 4: ...om National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Com bustion and Ventilation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Con...

Страница 5: ...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 suppor...

Страница 6: ...sible provide greater clearances from the floor ceil ing and joining walls WARNING Rework worksheet adding the space of the adjoining unconfined space The combined space must have enough fresh air to...

Страница 7: ...ter 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 figure 7 If you can...

Страница 8: ...ng 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 dr...

Страница 9: ...From Gas Meter 4 W C to 10 5 W C Pressure Tee Joint 1 8 NPT Plug Tap Cap Pipe Nipple Tee Joint 3 8 NPT Pipe Nipple Sediment Trap Test Gauge Connection Reducer Bushing to 1 8 NPT 3 Minimum cleaning A...

Страница 10: ...our gas supplier call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If knob will not push in or turn by hand don t try to repair it call a qualified...

Страница 11: ...Heater may need more frequent cleaning due to excess lent from carpeting bedding material pet hair etc Make sure grille guard is in place before running heater If screen or grille guard is removed fo...

Страница 12: ...acuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR HOLE INLET We recommend that you clean the unit ever 2 500 hours of operation or every three months We als...

Страница 13: ...13 Installation Instructions and Owner s Manual Unvented Natural Gas Vent Free Room Heaters This page intentionally left blank...

Страница 14: ...as regulator 6 Turn Control knob to pilot position When ignitor button is pressed in there is a spark at the ODS pilot but no ignition 1 Control knob not fully pressed in 2 Control knob not pressed in...

Страница 15: ...ances see Figure 4 page 7 4 Clean burner orifice see Cleaning and Maintenance on pages 11 and 12 or replace burner orifice White powder residue forming within burner box or on adjacent walls or furni...

Страница 16: ...B NG BF20T NG BF30TB NG BF30T NG 7 2 36 39 38 35 16 21 16 1 16 2 6 26 29 24 22 3 13 23 18 3 11 1 2 1 4 22 2 33 1 22 1 25 9 5 1 3 1 1 27 1 28 1 4 44 42 45 8 20 10 15 14 42 9 7 26 22 3 22 1 33 1 1 4 3 6...

Страница 17: ...641 70641 Ignitor Module Mounting Bracket 1 10 70682 70682 70682 70682 High Limit Switch 1 11 70644 70644 70644 70644 Ignitor Module Battery powered 1 12 13 70338 70338 70356 70338 Pressure regulator...

Страница 18: ...70692 Right Burner Gas Tube 1 70690 70693 Right Middle Gas Burner Tube 1 70598 Left Middle Gas Burner Tube 1 70691 70694 Left Burner Gas Tube 1 70695 70695 70696 70696 ODS Gas Tube Assembly 1 70697 7...

Страница 19: ...19 Installation Instructions and Owner s Manual Unvented Natural Gas Vent Free Room Heaters This page intentionally left blank...

Страница 20: ...escription of problem in all communication LIMITED WARRANTY Mr Heater Inc warrants its heaters and accessories to be free from defects in material and workmanship for a period of 1 year from date of p...

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