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Mr. Heater MHBF10NG Installation Instructions And Owner's Manual

Unvented natural gas fired room heater

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READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions 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
Model #
MHBF10NG/TSBF10NG
MHBF20/NGT/TSBF20NGT
MHBF30NGT/TSBF30NGT
MHBF30NGT/
TSBF30NGT
MHIR30NGT/
TSIR30NGT
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 flammable vapors and liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
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 fire department.
- Installation and service must be performed by a qualified installer, service agency, or the gas supplier.
WARNING: This is an unvented gas-fired 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 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 qualified installer, service agency, or gas supplier.
ENERCO GROUP, INC., 4560 W. 160
INSTALLATION INSTRUCTIONS
AND OWNER'S MANUAL
Burn Rate
10,000 Btu/hr
20,000 Btu/hr
30,000 Btu/hr
MHBF20NGT/
TSBF20NGT
MHIR20NGT/
TSIR20NGT
TH
ST., CLEVELAND, OHIO 44135 · 216-916-3000
Plaque Heaters
Model #
MHIR10NG/TSIR10NG
MHIR20NGT/TSIR20NGT
MHIR30NGT/TSIR30NGT
MHBF10NG/
TSBF10NG
1
Installation instructions and Owner's Manual
Burn Rate
10,000 Btu/hr
20,000 Btu/hr
30,000 Btu/hr
MHIR10NG/
TSIR10NG
70574
Rev. C
08/05

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Summary of Contents for Mr. Heater MHBF10NG

  • Page 1 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 qualified installer, service agency, or gas supplier. ENERCO GROUP, INC., 4560 W. 160 INSTALLATION INSTRUCTIONS AND OWNER’S MANUAL...
  • Page 2 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.
  • Page 3 Product Features Ignitor Button Burners Grill Front Panel 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: BF10NG / IR10NG –...
  • Page 4 Other gas appliances* *Do not include direct-vent gas appliances. Direct- vent 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.
  • Page 5 VENTILATION AIR 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 OUTLET AIR 1 2 3 4 5 1 2 3 4 5 OUTLET 1 2 1 2 1 2 1 2 INLET 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5...
  • Page 6 6” Min from adjoining walls Left Side Floor 2” min. to top surface of carpet, tile or other combustible material Figure 4 FASTENING HEATER TO WALL Mounting Bracket The mounting bracket in located on the back panel of heater (see figure 5). It has been taped there for ship- ping.
  • Page 7 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 figure 8 below. Figure 8. 3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall.
  • Page 8 WARNING: This appliance requires a 3/8” NPT (National Pipe Thread) inlet connection to the pressure regulator. Use of floor 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.
  • Page 9 OPERATING YOUR HEATER NON-THERMOSTAT MODELS MHIR10NG / MHBF10NG / TSIR10NG / TSBF10NG FOR YOUR SAFETY READ BEFORE LIGHTING Control Valve WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
  • Page 10 C. Use only your hand to push in or turn the gas control knob. Never use tools. It 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.
  • Page 11 TO TURN OFF GAS TO APPLIANCE SHUTTING OFF HEATER: 1. Turn control knob clockwise to the OFF posi- tion. 2. Turn off all electrical power to the appliance if servicing is to be preformed. 3. Turn off equipment shutoff valve. SHUTTING OFF BURNER ONLY (PILOT STAYS LIT) 1.
  • Page 12 8. When the pilot is lit, turn control know counter- clockwise to heating level. The main burner should light. 9. To select the desired heat level, turn the tem- perature setting knob counterclockwise to between 1 & 7. THERMOSTAT CONTROL OPERATION FOR IR20NGT / IR30NGT: The thermostatic control used simply turns on and off the burner.
  • Page 13 Figure 24b CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before servicing. CAUTION: You must keep control areas, burner and circulation air passageways of heater clean. Inspect these areas of heater before use. Have the heater inspected yearly by a qualified service person.
  • Page 14: Troubleshooting

    TROUBLESHOOTING NOTE: All troubleshooting items are listed in order of operation and likely occurrence. WARNING: Only a qualified service person should service and repair heater. CAUTION: Never use a wire needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Make sure grille guard is in place before running heater.
  • Page 15 TROUBLESHOOTING CON’T OBSERVED SYMPTOM 1. Burner orifice is clogged or damaged Buner backfiring during combustion 2. Burner damaged 3. Gas regulator defective 1. Plaque damaged Burner plaque(s) does not glow 2. Control knob set between locked posi- [Infrared Only] tions. 3.
  • Page 16 SPECIFICATIONS BTU (Available) Type of Gas Ignition Pressure Regulator Setting Inlet Gas Pressure (Maximum) Inlet Gas Pressure (Minimum) Electrical Rating Burners / Orifice nozzles Thermostatic Control Clearances: inches (mm) Sides Floor (min. to top of carpet) Fabric / flammable objects BTU (Available) Type of Gas Ignition...
  • Page 17 Purchase these heater accessories from your local dealer. If they can not supply these accessories, contact your nearest Parts Central or call Enerco Group, Inc.’s 800# for information. You can also write to the address listed on the front page of this manual.
  • Page 18 Thermostat models MHIR20NGT, MHIR30NGT, MHBF20NGT, MHBF30NGT, TSIR20NGT, TSIR30NGT, TSBF20NGT, TSBF30NGT 33-1 BF20NGT BF30NGT IR20NGT 20-2 IR30NGT 16-1 16-2 22-1 20-2 16-1 16-2 33-2 22-3 22-1 22-1 33-1 33-2 22-2 20-1 27-1 28-1 Installation instructions and Owner’s Manual 31-3 20-1 27-2 28-2 31-3 31-1...
  • Page 19: Bf30Ngt

    PARTS LIST Thermostat models MHIR20NGT, MHIR30NGT, MHBF20NGT, MHBF30NGT, TSIR20NGT, TSIR30NGT, TSBF20NGT, TSBF30NGT This list contains replacement parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual. ITEM PART NO. IR20NGT BF20NGT 70600...
  • Page 20 ITEM PART NO. IR20NGT BF20NGT 28-1 70670 — 28-2 — 70671 70683 70683 70684 70684 31-1 70685 70685 31-2 70686 70686 31-3 70687 70687 70688 70688 33-1 70672 70672 33-2 70673 70673 70674 70674 70675 70675 70677 70677 70678 70678 70680 70680 70679...
  • Page 21 NON-Thermostat models MHIR10NG, MHBF10NG, TSIR10NG, TSBF10NG 20-2 16-1 16-2 BF10NG 22-1 33-1 22-2 22-3 20-1 29-1 22-1 20-2 33-1 16-2 22-3 Installation instructions and Owner’s Manual IR10NG 20-1 16-1 27-2 22-2...
  • Page 22 PARTS LIST Non-Thermostat model MHIR10NG, MHBF10NG, TSIR10NG, TSBF10NG This list contains replacement parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual. ITEM PART NO. IR10NG 70300 70301 70302...
  • Page 23 ITEM PART NO. IR10NG 70336 70677 70678 70337 70352 70353 70354 70355 70342 70347 70349 70350 * Item Not Shown ** Must purchase assembly DESCRIPTION BF10NG Bracket, Bottom, Plenum Assembly Burner Plaques, 10 Plaque Gasket, 10 70337 Control Valve Knob Right Burner gas tube Left burner gas tube 70354...
  • Page 24 We make no other warranty, expressed or implied. Enerco Group, Inc. warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.