Summary of the content on the page No. 1
VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
®
Model: CGN10T
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 buil
Summary of the content on the page No. 2
SECTION PAGE CONTENTS Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking...................................................................................... 4 Product Features ............................................................................
Summary of the content on the page No. 3
SAFETY WARNINGS Continued WARNING ICON G 001 INFORMATION WARNING: Any change to this heater or its controls can be dangerous. Continued 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 pho
Summary of the content on the page No. 4
Ignitor Button PRODUCT Control Knob IDENTIFICATION Grill Guard Glass Panel 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, MA
Summary of the content on the page No. 5
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
Summary of the content on the page No. 6
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
Summary of the content on the page No. 7
AIR FOR WARNING WARNING ICON G 001 COMBUSTION If the area in which the heater may be operated is smaller than 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
Summary of the content on the page No. 8
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
Summary of the content on the page No. 9
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) • test gauge connection * (see • sealant (resistant to propane/LP gas) Figure 12, page 14) • manual shutoff valve * • sediment tra
Summary of the content on the page No. 10
For convenience and efficiency, install heater INSTALLING TO • where there is easy access for operation, inspection, and service WALL • in coldest part of room CEILING Continued 36" Minimum 6" 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 THERMOSTAT SENSING BULB The thermostat sensing bulb is located inside the heater. Do not move this bulb during in
Summary of the content on the page No. 11
Installing Two Mounting Screws INSTALLING TO Note: Wall anchors and mounting screws are in hardware package. The hardware package is provided with heater. 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
Summary of the content on the page No. 12
Placing Heater On Mounting Screws INSTALLING TO 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 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
Summary of the content on the page No. 13
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 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
Summary of the content on the page No. 14
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 Tee Joint Manual Shutoff Test Reducer Valve * Bushing to Gauge From 1/8" NPT Connection * External 1/8" NPT Regulator Plug Tap (4" W.C. to 10.5" W.C. Tee Pressure) Joint 3" Minimum Sediment Trap Pipe Nipple Cap Figure 12 - Gas Connection * An A.G.A. design certified manual shutoff valve with
Summary of the content on the page No. 15
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and CONNECTING water to gas joints. Bubbles forming show a leak. 5. Correct all leaks at once. TO GAS SUPPLY Test Pressures Equal To or Less Than 1/2 PSIG Continued 1. Close manual shutoff valve (see Figure 13). 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
Summary of the content on the page No. 16
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
Summary of the content on the page No. 17
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. Turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 15, page 16). Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control k
Summary of the content on the page No. 18
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
Summary of the content on the page No. 19
Check pilot flame pattern and burner flame pattern often. INSPECTING PILOT FLAME PATTERN BURNER Figure 17 shows a correct pilot flame pattern. Figure 18 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 GOOD PILOT GRH/OV 009 Figure 17 - Correct Pilot Flame Pattern Pilot Burner Thermocouple BAD PILOT/LP GRH/OV 008 Figure 18 -
Summary of the content on the page No. 20
BURNER FLAME PATTERN INSPECTING Figure 19 shows a correct burner flame pattern. Figure 20 shows an incorrect BURNER burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the glass panel height. Continued WARNING WARNING ICON G 001 If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If burner flame pattern shows yellow tipping, follow instructions at bottom of this page. NOTICE
