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INSTALLATION INSTRUCTIONS
AND OWNER’S MANUAL
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 Plaque Heaters
Model # Burn Rate Model # Burn Rate
MHBF10NG/TSBF10NG 10,000 Btu/hr MHIR10NG/TSIR10NG 10,000 Btu/hr
MHBF20/NGT/TSBF20NGT 20,000 Btu/hr MHIR20NGT/TSIR20NGT 2
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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 4. Keep all air openings in heater clear, free of debris or any blockage. This will insure that enough air for IMPORTANT: Read thi
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Product Features FRESH AIR FOR COMBUSTION AND VENTILATION Ignitor Button Control Knob WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate com- Burners bustion 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 Grill The following are excerpts from National Fuel Gas Heater Code, NFPA 54/ ANS
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*Adjoining rooms are communication only if there room. If the extra space provides an unconfined are doorless passageways or ventilation grills space, remove door to adjoining room or add ventila- between them. tion grills between the rooms. See Ventilation Air From Inside Building (Fig. 2). DETERMINING THE TYPE OF HEATER B. Vent room directly to the outdoors. See Ventilation LOCATION SPACE: Air From Outdoors (Fig. 3). Use this method to determine if you have a confined or C. Install a lower
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VENTILATION AIR Test gauge connection* 12345678 12345678 OUTLET AIR VENTILATED Sediment trap ATTIC Tee joint 12345 12345 12345 12 1 234 5 12 12345 Pipe wrench 12 TO ATTIC OUTLET 12 12 AIR 12 12 *A CSA/AGA certified equipment shutoff valve with 1/8” TO CRAWL 12 12345 12 1 234 5 SPACE 12345 INLET NPT tap is an acceptable alternative to test gauge 12345 12345 12345 1 234 5 1 234 5 1 234 5 AIR 12345 12345 12345 connection. Purchase a CSA/AGA certified equipment shutoff valve from your deale
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1. Attach to wall studs 2. Attach to wall anchor Attaching to Wall Stud: This way is the best providing the strongest mounting in 36” min. wood frame houses. from ceiling 6” Min from adjoining Attaching to Wall Anchor: walls This way allows you to attach mounting bracket to hollow walls (wall areas between studs) or to solid walls (concrete or masonry). Left Side Right Decide which way best suits your needs. Either method Side will provide a secure hold for the mounting bracket. 1. Tape mounting
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1. Drill holes at marked locations using 5/16” drill 4. If installing bottom mounting screw into hollow bit. For solid walls (concrete or masonry), drill or solid wall, install wall anchors. Follow steps 1 at least 1” deep. through 4 under Attaching to Wall using Anchor. If installing bottom mounting screw into wall 2. Fold wall anchor as shown in figure 8 below. stud, drill holes at marked locations using 9/64” drill bit. 5. Re-place heater onto mounting bracket. 6. Place spacers between bott
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WARNING: This appliance requires a 3/8” NPT cleaning. A sediment trap traps moisture and contami- (National Pipe Thread) inlet connection to the nants. This keeps them from going into heater. If pressure regulator. Use of floor mounting feet will sediment trap is not installed or is installed improperly, require you to use a 3/8 NPT street elbow to make heater may not run correctly. gas connection. IMPORTANT: Hold pressure regulator with wrench CAUTION: Never connect heater to private (non-ut
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Pressure Testing Heater Gas Connections: ELECTRICAL WIRING DIAGRAM: 1. Make sure that the heater supply piping system is connected and has been leak tested as described above. 2. Make sure control knob of heater is in OFF position. 3. Open equipment shutoff valve (see figure 13). 4. Open main gas valve on or near gas meter. 5. Check all joints from equipment shutoff valve to control valve (see figure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 6. Corr
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C. Use only your hand to push in or turn the gas FOR TSBF10NG: After flame is established (see control knob. Never use tools. It knob will not Burner Flame Pattern, Page 12) on “HI”, adjust push in or turn by hand, don’t try to repair it; call heat output by turning control knob to desired a qualified service technician or gas supplier. position (“LO” or “HI”). Do not operate heater Force or attempted repair may result in a fire or between locked positions. explosion. D. Do not use this applia
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TO TURN OFF GAS TO APPLIANCE LIGHTING INSTRUCTIONS SHUTTING OFF HEATER: 1. STOP! Read the all safety information included with and on the side of heater. 1. Turn control knob clockwise to the OFF posi- tion. 2. Make sure the equipment shutoff valve is fully open. 2. Turn off all electrical power to the appliance if servicing is to be preformed. 3. Push in gas control knob and slightly turn clockwise to the OFF position (see figure 19). 3. Turn off equipment shutoff valve. 4. Wait five (5) minute
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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. Figure 21 THERMOSTAT CONTROL OPERATION FOR IR20NGT / IR30NGT: The thermostatic control used simply turns on and off the burner. FOR BF20NGT / BF30NGT: The thermostatic control used modulates the flame size as the temperature gets closer to set point, then it turns off the burner u
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Figure 24b Figure 25 CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before CLEANING HEATER CABINET servicing. Air passageways CAUTION: You must keep control areas, burner and circulation air passageways of heater clean. Use a vacuum cleaner or pressurized air to Inspect these areas of heater before use. Have the clean heater inspected yearly by a qualified service Exterior person. Heater may need more frequent cleaning Use a soft cloth dampened with a mild soap and due to ex
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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. If screen or grille guard is removed for servicing it must be replaced prior to operating the heater. OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY When ignitor butt
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TROUBLESHOOTING CON’T OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY 1. Clean burner orifice (see Cleaning and 1. Burner orifice is clogged or damaged Buner backfiring during Maintenance on page 13), or replace combustion burner orifice 2. Burner damaged 2. Replace burner 3. Replace gas regulator 3. Gas regulator defective 1. Plaque damaged 1. Replace buner Burner plaque(s) does not glow 2. Control knob set between locked posi- 2. Turn control knob until it locks at desired [Infrared Only] tions. settin
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SPECIFICATIONS IR10NG IR20NGT IR30NGT BTU (Available) 10,000 20,000 30,000 Type of Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition Piezo Battery ignitor (1-AA) Battery ignitor (1-AA) Pressure Regulator Setting 4.5 Inches of Water 4.5 Inches of Water 6.0 Inches of Water Inlet Gas Pressure (Maximum) 14 Inched of Water 14 Inched of Water 14 Inched of Water Inlet Gas Pressure (Minimum) 9 Inches of Water 9 Inches of Water 9 Inches of Water Electrical Rating — 120V, 60Hz, 1 120V, 60Hz,
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REPLACEMENT PARTS Note: use only original replacement parts. This will protect you warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealer from whom you purchased this product. If they are unable to supply original replacement part(s), call the number on back of manual. When contacting your dealer have ready: Your name Your address Model and serial numbers of your heater How heater was malfunctioning Type of gas used (Natural Gas) Purcha
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Thermostat models MHIR20NGT, MHIR30NGT, MHBF20NGT, MHBF30NGT, TSIR20NGT, TSIR30NGT, TSBF20NGT, TSBF30NGT 24 31-3 32 3-1 3-3 1-1 34 1-4 31-2 26 31-1 12 3-5 30 9 14 3-2 8 6 3-6 29 17 31-1 1-3 11 5 22-1 15 20-2 4 7 16-1 16-2 33-1 1-2 BF20NGT 16 BF30NGT 20-1 23 13 2 27-2 33-2 28-2 22-3 25 22-1 3-2 31-3 32 3-1 24 34 3-3 1-4 31-2 1-1 3-5 12 31-1 9 6 17 29 30 31-1 22-1 3-4 5 11 26 1-3 8 10 7 33-1 22-3 1-2 20-2 IR20NGT 35 IR30NGT 33-2 23 38 19 18 13 39 2 22-2 20-1 16-1 25 27-1 36 16-2 28-1 21 16 18 Inst
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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. DESCRIPTION QTY. IR20NGT BF20NGT IR30NGT BF30NGT 1 70600 70600 70605 70605 Cabinet assembly 1 1-1 70601 70601 70606 70606 Cabinet Top Panel 1 1-2 70603 70603 70603 70603 Cabinet Right Panel 1 1-3 70602
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ITEM PART NO. DESCRIPTION QTY. IR20NGT BF20NGT IR30NGT BF30NGT 28-1 70670 — — --- Orifice, 20, IR 3 28-2 — 70671 — — Orifice, 20, BF 1 29 70683 70683 70683 70683 Fan 1 30 70684 70684 70684 70684 Fan motor 1 31-1 70685 70685 70685 70685 Fan Mounting Bracket 2 31-2 70686 70686 70686 70686 Fan Venturi 1 31-3 70687 70687 70687 70687 Fan Cover 1 32 70688 70688 70688 70688 Fan switch 1 33-1 70672 70672 70672 70672 Fan air channel - Left 1 33-2 70673 70673 70673 70673 Fan air channel - Bottom 1 3
