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UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
GN30, GP30, GN30T, GP30T, GWN20, GWP20,
GWN20T, GWP20T, GWN30T, GWP30T, WMN20, WMP20
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 an
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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. Provisions for adequate combustion and ventilation air must be provided. Refer to Air
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SAFETY INFORMATION Do not place clothing or other flammable material on or near IMPORTANT: Read this owner’s the appliance. Never place any manual carefully and completely objects on the heater. before trying to assemble, oper- ate, or service this heater. Im- Surface of heater becomes very proper use of this heater can hot when running heater. Keep cause serious injury or death children and adults away from from burns, fire, explosion, elec- hot surface to avoid burns or trical shock, and carbo
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SAFETY INFORMATION PRODUCT Continued IDENTIFICATION 6. Keep all air openings in front and bottom of Control Knob Heater heater clear and free of debris. This will in- Ignitor Button Cabinet sure enough air for proper combustion. 7. If heater shuts off, do not relight until you pro- vide fresh, outside air. If heater keeps shut- ting off, have it serviced. 8. Do not run heater • where flammable liquids or vapors are used or stored • under dusty conditions 9. Before using furniture polish, wax, ca
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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 -11 2 one perm (6x10 kg per pa-sec-m ) or not be installed in a confined less with openings gasketed or sealed space or unusually tight con- and struction unless provisions are b. weather stripping has been added on provided for adequate combus- openable windo
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4. Compare the maximum Btu/Hr the space can AIR FOR COMBUSTION support with the actual amount of Btu/Hr used. AND VENTILATION ______________ Btu/Hr (maximum the space Continued can support) ______________ Btu/Hr (actual amount of DETERMINING FRESH-AIR FLOW Btu/Hr used) FOR HEATER LOCATION Example: 51,200 Btu/Hr (maximum the space can support) Determining if You Have a Confined or Unconfined Space 60,000 Btu/Hr (actual amount of Btu/Hr used) Use this work sheet to determine if you have a con- The
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AIR FOR COMBUSTION AND VENTILATION Ventilated Outlet Attic Air Continued Outlet Air To Attic VENTILATION AIR Ventilation Air From Inside Building To This fresh air would come from an adjoining un- Crawl Space confined space. When ventilating to an adjoining Inlet Air unconfined space, you must provide two perma- Ventilated Inlet Air nent openings: one within 12" of the ceiling and Crawl Space one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). Fi
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INSTALLATION CAUTION: This heater cre- Continued ates warm air currents. These INSTALLATION ITEMS currents move heat to wall sur- Before installing heater, make sure you have the faces next to heater. Installing items listed below. heater next to vinyl or cloth wall • for propane/LP gas, external regulator (supplied coverings or operating heater by installer) where impurities (such as, but • piping (check local codes) not limited to, tobacco smoke, • sealant (resistant to propane/LP gas) aromat
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INSTALLATION Continued THERMOSTAT SENSING BULB (Thermostat Models Only) The thermostat sensing bulb has been placed be- low the heater. 1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hard- ware package. 2. Snap clamp into upper mounting hole as shown in Figure 5. Mounting hole is located on lower left edge on back of heater. Make sure the ther- mostat sensing bulb is pointing up. Figure 7 - Removing Front Panel Of Heater Methods For Attaching Mounting Bracke
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Attaching To Wall Anchor Method INSTALLATION For attaching mounting bracket to hollow walls Continued (wall areas between studs) or solid walls (concrete or masonry) 2. Mark screw locations on wall (see Figure 8). 1. Drill holes at marked locations using 5/16" Note: Only mark last hole on each end of drill bit. For solid walls (concrete or masonry), mounting bracket. Insert mounting screws drill at least 1" deep. through these holes only. 2. Fold wall anchor as shown in Figure 9. 3. Remove tape
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MOUNTING HEATER TO FLOOR INSTALLATION WITH OPTIONAL FLOOR KIT Continued Installing Bottom Mounting Screws Mounting Base Feet to Heater 1. Locate two bottom mounting holes. These 1. Lay heater cabinet on its back on a table with holes are near bottom on back panel of heater the heater bottom overhanging the table edge. (see Figure 12). 2. Align holes in base foot with mounting holes on bottom of cabinet (see Figure 13). 2. Mark screw locations on wall. 3. Secure base foot to heater using sheet me
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INSTALLATION CAUTION: Use only new, Continued black iron or steel pipe. Inter- CONNECTING TO GAS SUPPLY nally-tinned copper tubing may be used in certain areas. Check WARNING: This appliance your local codes. Use pipe of requires a 3/8" NPT (National large enough diameter to allow Pipe Thread) inlet connection to proper gas volume to heater. If the pressure regulator. pipe is too small, undue loss of volume will occur. WARNING: A qualified ser- vice person must connect heater Typical Inlet Pi
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INSTALLATION Continued WARNING: Never use an open flame to check for a leak. IMPORTANT: Hold the pressure regulator with wrench when connecting it to gas piping and/or Apply a noncorrosive leak de- fittings. Do not over tighten pipe connection to tection fluid to all joints. Bubbles regulator. The regulator body could be damaged. forming show a leak. Correct all Pressure leaks at once. Regulator Heater Cabinet CAUTION: For propane/LP gas, make sure external regula- tor has been installed betwe
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INSTALLATION Thermostat Gas Valve Continued 2. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve lo- Gas cated on or near gas meter for natural gas, or Meter using compressed air. 3. Check all joints from gas meter for natural gas (see Figure 17) or propane/LP supply tank for propane/LP gas, to equipment shutoff valve (see Figure 18). Apply a noncorrosive leak detection fluid to all joints. Bubbles form- Equipment Shutoff
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5. Press in control knob and turn counter- OPERATING HEATER clockwise to the PILOT position. MANUAL CONTROL MODELS Keep control knob pressed in for five (5) seconds (see Figure 19). FOR YOUR SAFETY Note: You may be running this heater for READ BEFORE LIGHTING the first time after hooking up to gas sup- ply. If so, the control knob may need to be pressed in for 30 seconds or more. This will WARNING: If you do not fol- allow air to bleed from the gas system. low these instructions exactly, • If
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WHAT TO DO IF YOU SMELL GAS OPERATING HEATER • Do not try to light any appliance. Continued • Do not touch any electric switch; do not TO TURN OFF GAS use any phone in your building. TO APPLIANCE • Immediately call your gas supplier from a neighbor’s phone. Follow the gas Shutting Off Heater supplier’s instructions. 1. Press in and turn control knob clockwise • If you cannot reach your gas supplier, call to the PILOT position. the fire department. 2. Turn control knob clockwise to the C. Use o
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OPERATING HEATER TO TURN OFF GAS Continued TO APPLIANCE Shutting Off Heater 6. With control knob pressed in, push down 1. Turn control knob clockwise to the and release ignitor button. This will light OFF position. pilot. The pilot is attached to the front of 2. Turn off all electric power to the appliance burner. The pilot is attached to the front of if service is to be performed. the burner. If needed, keep pressing igni- Shutting Off Burner Only (pilot stays lit) tor button until pilot light
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BURNER FLAME PATTERN INPECTING HEATER Check pilot flame pattern and burner flame pat- WARNING: If yellow tipping tern often. occurs, your heater could pro- PILOT FLAME PATTERN duce increased levels of carbon Figure 23 shows a correct pilot flame pattern. Fig- monoxide. ure 24 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermo- NOTICE: Do not mistake orange couple. This will cause the thermocouple to cool. flames with yellow tipping. Dirt When the thermo
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1. Shut off the unit, including the pilot. Allow CLEANING AND the unit to cool for at least thirty minutes. MAINTENANCE 2. Inspect burner, pilot for dust and dirt. 3. Blow air through the ports/slots and holes in WARNING: Turn off heater the burner. and let cool before cleaning. 4. Never insert objects into the pilot tube. Clean the pilot assembly also. A yellow tip on the CAUTION: You must keep pilot flame indicates dust and dirt in the pilot as- sembly. There is a small pilot air inlet about
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TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before servic- ing. 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 there is no spark at ODS/pilot wrong 2. Ignitor
