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UNVENTED (VENT-FREE) SOLAR FUSION GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
RESIDENTIAL MODELS
GARAGE MODELS
SF20NT, SF20PT,
LSFG20NT, LSFG20PT,
LSF20NT, LSF20PT,
REM20NT, REM20PT,
VSF20NT, VSF20PT,
SFG20NT, SFG20PT,
SF30NT, SF30PT,
SPC20NT, SPC20PT,
LSF30NT, LSF30PT,
VSFG20NT, VSFG20PT
VSF30NT, VSF30PT
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store
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WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult 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. Provi- sions for adequate combustion and ventilation air must be provided. Refer to Ai
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SAFETY INFORMATION Due to high temperatures, the appliance should be located out WARNING: This product con- of traffic and away from furniture tains and/or generates chemicals and draperies. known to the State of California to cause cancer or birth defects Do not place clothing or other or other reproductive harm. flammable material on or near the appliance. Never place any IMPORTANT: Read this owner’s objects on the heater. manual carefully and completely before trying to assemble, S
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SAFETY INFORMATION PRODUCT Continued IDENTIFICATION 5. This heater needs fresh, outside air ventilation Control Knob & to run properly. This heater has an Oxygen Grill Ignitor Button Depletion Sensing (ODS) safety shutoff Guard (inside door) system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, page 5. 6. Keep all air openings in front and bottom of heater clear and free of debris. This will insure enough air for proper com
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Unusually tight construction is defined as AIR FOR COMBUSTION construction where: AND VENTILATION a. walls and ceilings exposed to the out- side atmosphere have a continuous WARNING: This heater shall water vapor retarder with a rating of not be installed in a confined -11 2 one perm (6 x 10 kg per pa-sec-m ) or space or unusually tight con- less with openings gasketed or sealed struction unless provisions are and b. weather stripping has been added on provided for adequate combus- opena
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C. Install a lower Btu/Hr heater, if lower Btu/Hr size AIR FOR COMBUSTION makes room unconfined. AND VENTILATION If the actual Btu/Hr used is less than the maximum Continued Btu/Hr the space can support, the space is an un- confined space. You will need no additional fresh 1. Determine the volume of the space (length x air ventilation. width x height). Length x Width x Height =__________cu. ft. (volume of space) WARNING: If the area in Example: Space size 20 ft. (6.1 m) (length) x which
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AIR FOR COMBUSTION WARNING: A qualified ser- AND VENTILATION vice person must install heater. Continued Follow all local codes. Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills CHECK GAS TYPE or ducts. You must provide two permanent open- Use only the correct type of gas (natural or pro- ings: one within 12" (30.4 cm) of the ceiling and pane/LP). If your gas supply is not the correct gas one within 12" (30.4 cm) of the floor. Connect these items directly to
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For convenience and efficiency, install heater INSTALLATION • where there is easy access for operation, inspec- Continued tion and service LOCATING HEATER • in coldest part of room CEILING WARNING: Maintain the minimum clearances shown in Figure 4. If you can, provide 6" (15.2 cm) 36" (91.4 cm) Minimum Minimum greater clearances from floor, From ceiling and joining wall. Sides Of Heater 14" (35.6 cm) WARNING: Never install the minimum Right Left heater Side Side • in a bedroom or bathroom
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5. Insert mounting screws into wall anchors. INSTALLATION 6. Tighten screws until screw head is 1/8" away Continued from wall. Decide which method better suits your needs. Either method will provide a secure hold for the heater. Marking Screw Locations WARNING: Maintain mini- Figure 7 - Folding Figure 8 - Popping mum clearances shown in Anchor Open Anchor Wings Figure 4. If you can, provide For Thin Walls greater clearances from floor Placing Heater On Mounting Screws and joining wall. 1.
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IMPORTANT: Install an equipment shutoff valve INSTALLATION in an accessible location. The equipment shutoff Continued valve is for turning on or shutting off the gas to the appliance. CAUTION: For propane/LP Apply pipe joint sealant lightly to male NPT gas, never connect heater di- threads. This will prevent excess sealant from rectly to the propane/LP supply. going into pipe. Sealant in pipe could result in clogged heater valves. Most flex gas tubing does This heater requires an externa
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2. Cap off open end of gas pipe where equipment INSTALLATION shutoff valve was connected. Continued 3. Pressurize supply piping system by either Install sediment trap in supply line as shown in opening propane/LP supply tank valve for Figure 11, page 10. Locate sediment trap where propane/LP gas or opening main gas valve it is within reach for cleaning. Locate sediment located on or near gas meter for natural gas trap where trapped matter is not likely to freeze. or using compressed air
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INSTALLATION Shoulder Refractory Screw Continued Thermostat Gas Valve Gas Meter Equipment Shutoff Valve Preforated Front Figure 13 - Checking Gas Joints for Tab Front Panel Diffuser Natural Gas Figure 15 - Installing Front Panel and Refractory Propane/LP Supply Tank Thermostat OPERATING HEATER Gas Valve FOR YOUR SAFETY READ BEFORE LIGHTING Equipment Shutoff WARNING: If you do not fol- Valve low these instructions exactly, a fire or explosion may result causing property damage, pe
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Note: If pilot goes out, repeat steps 4 thru 7. OPERATING HEATER Thermostat models have a safety interlock Continued system. Wait one (1) minute before lighting D. Do not use this appliance if any part has pilot again. been under water. Immediately call a 9. Turn control knob counterclockwise qualified service technician to inspect the to desired heating level. The main burner appliance and to replace any part of the should light. control system and any gas control which has been unde
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If pilot flame pattern is incorrect, as shown in OPERATING HEATER Figure 19 Continued • turn heater off (see To Turn Off Gas to Ap- THERMOSTAT CONTROL pliance, page 13) OPERATION • see Troubleshooting, page 16 The thermostatic control used on these models Note: The pilot flame on natural gas units will differs from standard thermostats. Standard have a slight curve, but flame should be blue and thermostats simply turn on and off the burner. have no yellow or orange color. The thermostat used
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ODS/PILOT AND BURNER INSPECTING HEATER Use a vacuum cleaner, pressurized air or small, Continued soft bristled brush to clean. Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. BURNER PILOT AIR INLET The incorrect burner flame pattern shows yellow The primary air inlet holes allow the proper tipping of the flame. amount of air to mix with the gas. This provides a If burner flame pattern is incorrect, as shown in clean burning flame. Keep these hol
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TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before servicing. 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. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed 1. Ignitor electrode positioned 1. Replace pilot assembly in, there is no spark at ODS/ wrong pilot 2. Ignit
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TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully pressed in 1. Press in control knob fully goes out when control knob is 2. Control knob not pressed in 2. After ODS/pilot lights, keep con- released long enough trol knob pressed in 30 seconds 3. Equipment shutoff valve not 3. Fully open equipment shutoff fully open valve 4. Thermocouple connection 4. Hand tighten until snug, then loose at control valve tighten 1/4 turn more 5
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TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Yellow flame during burner 1. Not enough air 1. Check burner for dirt and combustion debris. If found, clean burner (see Cleaning and Mainte- nance, page 15) 2. Gas regulator defective 2. Replace gas regulator 3. Clogged or dirty burner 3. Clean burner (see Cleaning and Maintenance, page 15) 4. Air blowing into heater 4. Turn off air supply 5. Burner not positioned in 5. Have a qualified service person bracket properly or install
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TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, ceme
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SPECIFICATIONS REM20NT, SF20NT, SFG20NT, REM20PT, SF20PT, SFG20PT, SPC20NT AND VSFG20NT SPC20PT AND VSFG20PT • Natural Gas • Propane/LP Gas • 10,500/20,000 Btu/Hr (Variable) • 10,500/20,000 Btu/Hr (Variable) • Piezo Ignition • Piezo Ignition • Pressure Regulator Setting - 3" W.C. • Pressure Regulator Setting - 8" W.C. • Inlet Gas Pressure* (in. of water) • Inlet Gas Pressure* (in. of water) Maximum - 10.5" - Minimum - 4" Maximum - 14" - Minimum - 11" LSF20NT, LSFG20NT, VSF20NT AND LSF20PT, LSF
