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VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
Model: CGN12A
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 any electrical switch; do not use any phone in your buildi
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SECTION PAGE CONTENTS Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking...................................................................................... 4 Product Features ............................................................................
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SAFETY WARNING ICON G 001 WARNINGS Continued INFORMATION WARNING: Any change to this heater or its controls can be dangerous. Continued 1. Use only natural gas. Do not convert heater to use different fuel type. 2. 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. Follow the gas supplier’s instructions • if you cannot reach your ga
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Piezo Ignitor Button PRODUCT Control Knob IDENTIFICATION Grill Guard Burners Heater Front Cabinet Panel Figure 1 - Vent-Free Natural Gas Heater Install and use heater with care. Follow all local codes. In the absence of local LOCAL CODES codes, use the latest edition of The National Fuel Gas Code ANSI Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association, Inc. Batterymarch Park Quincy, M
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FRESH AIR WARNING WARNING ICON G 001 FOR This heater must have fresh air for proper operation. If not, poor fuel combustion could result. Read the following instructions to COMBUSTION insure proper fresh air for this and other fuel-burning appliances in your home. AND VENTILATION Today’s homes are built more energy efficient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to
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DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION FRESH AIR Determining if You Have a Confined or Unconfined Space FOR Use this worksheet to determine if you have a confined or unconfined space. COMBUSTION Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. AND 1. Determine the volume of the space (length x width x height). VENTILATION Length x Width x Height = ___________________ cu. ft. (volume of sp
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VENTILATION AIR FRESH AIR Ventilation Air From Inside Building FOR This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the COMBUSTION ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and AND 2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2). VENTILATION WARNING WARNING ICON G 001 Continued Rework wor
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VENTILATION AIR (Continued) FRESH AIR Ventilation Air From Outdoors FOR Provide extra fresh air by using ventilation grills or ducts. You must provide two perma- nent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these COMBUSTION items directly to the outdoors or spaces open to the outdoors. These spaces include attics AND and crawl spaces. Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation for required size o
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INSTALLING NOTICE TO WALL A qualified service person must install heater. Follow all local codes. CHECK GAS TYPE Use only natural gas. If your gas supply is not natural, do not install heater. Call dealer where you bought heater for proper type heater. INSTALLATION ITEMS Before installing heater, make sure you have the items listed below. • piping (check local codes) • test gauge connection * (see • sealant (resistant to propane gas) Figure 12, page 14) • manual shutoff valve * • sediment trap •
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For convenience and efficiency, install heater INSTALLING • where there is easy access for operation, inspection, and service TO WALL • in coldest part of room CEILING Continued 36" Minimum 8" Minimum From Sides Of Heater Right Side Left Side 3" Minimum To Top Surface Of Carpeting, Tile Or Other Combustible Material FLOOR Figure 4 - Mounting Clearances As Viewed From Front of Heater INSTALLING HEATER TO WALL Marking Screw Locations 1. Determine where you will locate heater. WARNING WARNING IC
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Installing Two Mounting Screws INSTALLING Note: Wall anchors and mounting screws are in hardware package. The hardware package is provided with heater. TO WALL Continued Attaching to wall stud method For attaching mounting screw to wall stud 1. Drill hole at marked location using 9/64" drill bit. 2. Insert mounting screw into wall stud. 3. Tighten screw until 1/16" space (thickness of penny) is between screwhead and wall. Attaching to wall anchor method Follow instructions below to attach mounti
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Placing Heater On Mounting Screws INSTALLING 1. Locate two keyhole slots on back panel of heater (see Figure 9). 2. Place large openings of slots over screwheads. Slide heater down until screws TO WALL are in small portion of slots. Continued Keyhole Slots Figure 9 - Location Of Keyhole Slots On Back Panel Of Heater Removing Front Panel Of Heater 1. Remove two screws near bottom corners of front panel. 2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4". 3. Pu
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CONNECTING NOTICE A qualified service person must connect heater to gas supply. TO GAS Follow all local codes. SUPPLY WARNING WARNING ICON G 001 Never connect heater to private (non-utility) gas wells. This gas is commonly known as well-head gas. IMPORTANT: Check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur. CAUTION WARNING ICON G 001 Use only new, bla
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IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping CONNECTING and/or fittings. TO GAS SUPPLY Continued Pressure Regulator 3/8" NPT Pipe Nipple Heater Cabinet Ground Joint Union Manual Tee Joint Shutoff Valve * Test Reducer Bushing to Gauge From Gas Meter 1/8" NPT Connection * (4" W.C. to 10.5" W.C. Pressure) 1/8" NPT Plug Tap Tee 3" Minimum Joint Sediment Pipe Trap Nipple Cap Figure 12 - Gas Connection * An A.G.A. design-certified manual shutoff valve with 1/8" NPT
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4. Check all joints of gas supply piping system. Apply mixture of liquid soap and CHECKING water to gas joints. Bubbles forming show a leak. GAS 5. Correct all leaks at once. Test Pressures Equal To or Less Than 1/2 PSIG CONNECTIONS 1. Close manual shutoff valve (see Figure 13). Continued 2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 3. Check all joints from gas meter to manual shutoff valve (see Figure 14). Apply mixtur
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OPERATING FOR YOUR SAFETY READ BEFORE LIGHTING HEATER WARNING WARNING ICON G 001 If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the
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4. Wait five (5) minutes to clear out any gas. Then smell for gas, including OPERATING near the floor. If you smell gas, STOP! Follow “B” in the safety information HEATER at the top of page 16. If you don’t smell gas, go to the next step. Continued C-clockwise 5. Press in control knob, and turn counterclockwise to pilot position. Keep control knob pressed for five seconds. Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to
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TO SELECT HEATING LEVEL OPERATING HEATER WARNING WARNING ICON G 001 Continued When running heater, set control knob at LOW or HIGH locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result. CAUTION WARNING ICON G 001 Do not try to adjust heating levels by using the manual shutoff valve. C-clockwise 1. Slightly press in control knob and turn counterclockwise to the LOW or HIGH positions. IMPORTANT: Release downward pressu
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TO TURN OFF GAS TO APPLIANCE OPERATING Shutting Off Heater HEATER 1. Turn control knob clockwise Clockwise to the OFF position. Continued Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise to the PILOT position. MANUAL LIGHTING PROCEDURE 1. Remove front panel (see Figure 10, page 12). 2. Follow steps 1 through 5 under Lighting Instructions, pages 16 and 17. 3. With control knob pressed in, strike match. Hold match to pilot until pilot lights. 4. Keep control knob pressed i
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INSPECTING BURNER FLAME PATTERN BURNER Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. Continued Figure 20 - Correct Burner Flame Pattern Figure 21 - Incorrect Burner Flame Pattern If burner flame pattern is incorrect, as shown in Figure 21 • turn heater off (see To Turn Off Gas to Appliance, page 19) • see Troubleshooting, pages 21 through 24 20 100847
