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BLUE FLAME
VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
®
18,000 and 28,000 Btu/Hr Thermostatically-Controlled Models
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
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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 WARNINGS Continued WARNING ICON G 001 INFORMATION WARNING: Any change to this heater or its controls can be dangerous. 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. 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
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Ignitor Button Control Knob PRODUCT IDENTIFICATION Grill Guard Glass Panel Front Panel Heater Cabinet Figure 1 - Vent-Free Natural Gas Heater (Models VN2800BTB/CFN2800BTB Shown) Install and use heater with care. Follow all local codes. In the absence of local LOCAL CODES codes, use the latest edition of 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, In
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AIR FOR WARNING WARNING ICON G 001 This heater shall not be installed in a confined space unless COMBUSTION provisions are provided for adequate combustion and ventilation AND air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. 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
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DETERMINING AIR FLOW FOR HEATER LOCATION AIR FOR Determining if You Have a Confined or Unconfined Space COMBUSTION Use this worksheet to determine if you have a confined or unconfined space. AND Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. VENTILATION 1. Determine the volume of the space (length x width x height). Continued Length x Width x Height = ___________________ cu. ft. (volume of spac
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AIR FOR WARNING WARNING ICON G 001 If the area in which the heater may be operated is smaller than COMBUSTION that defined as an unconfined space, provide adequate combus- AND tion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3. VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provid
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Ventilation Air From Outdoors AIR FOR Provide extra fresh air by using ventilation grills or ducts. You must provide two COMBUSTION permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These AND spaces include attics and crawl spaces. Follow the National Fuel Gas Code NFPA VENTILATION 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or
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INSTALLING TO NOTICE 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) • ground joint union • sediment trap • sealant (resistant to propane/LP gas) • test gauge connection * • tee joint • manual shutof
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For convenience and efficiency, install heater INSTALLING TO • where there is easy access for operation, inspection, and service • in coldest part of room WALL An optional fan kit is available from your dealer. See Accessories, page 30. If Continued planning to use fan, locate heater near an electrical outlet. CEILING 36" Minimum 6" Minimum From Sides Of Heater Left Right Side Side 3" Minimum To Top Surface Of Carpeting, Tile Or Other FLOOR Combustible Material Figure 4 - Mounting Clearances As
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INSTALLING HEATER TO WALL INSTALLING TO Mounting Bracket WALL The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel. Continued Mounting Bracket Figure 6 - Mounting Bracket 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. Pull bottom of front panel forward, then down. 4. Remove cardboard
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Marking Screw Locations INSTALLING TO 1. Tape mounting bracket to wall where heater will be located. Make sure mount- ing bracket is level. WALL Continued WARNING WARNING ICON G 001 Maintain minimum clearances shown in Figure 8. If you can, provide greater clearances from floor and joining wall. 2. Mark screw locations on wall (see Figure 8). Note: Only mark last hole on each end of mounting bracket. Insert mounting screws through these holes only. 3. Remove tape and mounting bracket from wall.
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4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to INSTALLING TO “pop” open anchor wings. IMPORTANT: Do not hammer key! For thick walls (over 1/2" thick) or solid walls, do not pop open wings. WALL Continued Figure 10 - Popping Open Anchor Wings For Thin Walls 5. Place mounting bracket onto wall. Line up last hole on each end of bracket with wall anchors. 6. Insert mounting screws through bracket and into wall anchors. 7. Tighten screws until mounting bracket is f
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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 well. This gas is commonly known as wellhead 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, black ir
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IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping CONNECTING and/or fittings. Note: Burner bracket TO GAS not shown for clarity Pressure SUPPLY Regulator Continued 1/2" NPT Pipe Nipple Heater Ground Joint Cabinet Union Tee Joint Test Reducer Manual Shutoff Bushing to Gauge Valve * 1/8" NPT Connection * 1/8" NPT From Gas Meter Plug Tap (4" W.C. to 10.5" W.C. Pressure) Tee Joint Sediment Pipe Nipple 3" Minimum Trap Cap Figure 13 - Gas Connection * An A.G.A. design c
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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. 5. Correct all leaks at once. GAS CONNECTIONS Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 14). 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 15). Apply mixtur
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OFF HI 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
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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 17. If you don’t smell gas, go to the next step. Continued C-clockwise 5. Turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 16). Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may n
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OPERATING TO TURN OFF GAS TO APPLIANCE HEATER Shutting Off Heater Continued 1. Turn control knob clockwise to the OFF position. Clockwise 2. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise to the PILOT position. Clockwise THERMOSTAT CONTROL OPERATION The thermostatic control used on these models differs from standard thermo- stats. Standard thermostats simply turn on and off the burner. The th
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Check pilot flame pattern and burner flame pattern often. INSPECTING PILOT FLAME PATTERN BURNER Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down. Pilot Burner Thermocouple Figure 18 - Correct Pilot Flame Pattern Thermocouple Pilot Burner Figure 19 - Incorrect Pilot Flame Pattern If pilot flame
