Desa CGN18R manual

Save this manual for future reference. VENT -FREE NA TURAL GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL Models: CGN18R and CGN30C 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 flamma[...]

2 099434 CONTENTS SECTION PAGE Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking ......................[...]

3 099434 SAFETY INFORMA TION Continued WARNING ICON G001 W ARNINGS Continued WARNING: Any change to this heater or its controls can be dangerous. 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 [...]

4 099434 PRODUCT IDENTIFICA TION GRH/PV 006A COMFORT GLOW PLAQUE FRONT-NON THERMO Control Knob Burners Heater Cabinet Front Panel Grill Guard LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Fuel Gas Code ANSI Z223.1, also known as NFPA 54*. *Available from: Amer[...]

5 099434 FRESH AIR FOR COMBUSTION AND VENTILA TION WARNING ICON G 001 W ARNING This heater must have fresh air for proper operation. If not, poor fuel combustion could result. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever.[...]

6 099434 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued WARNING ICON G001 W ARNING You must provide additional ventilation air in a confined space. DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the[...]

7 099434 FRESH AIR FOR COMBUSTION AND VENTILA TION 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 provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wal[...]

8 099434 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued VENTILATION AIR (Continued) Ventilation Air From Outdoors 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 items directly to the outdoors or space[...]

9 099434 INST ALLING T O W ALL NOTICE 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 belo[...]

10 099434 Minimum From Sides Of Heater 36" 3" FLOOR CEILING Minimum Minimum To Top Surface Of Carpeting, Tile Or Other Combustible Material 8" Left Side Right Side Figure 4 - Mounting Clearances As Viewed From Front of Heater INST ALLING T O W ALL Continued WARNING ICON G 001 CAUTION If you install the heater in a home garage • hea[...]

11 099434 INSTALLING HEATER TO WALL Mounting Bracket The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel. 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[...]

12 099434 Marking Screw Locations 1. Tape mounting bracket to wall where heater will be located. Make sure mount- ing bracket is level. 2. Mark screw locations on wall (see Figure 7). 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. Figure 7 - [...]

13 099434 4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key 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. INST ALLING T O W ALL Continued Figure 9 - Popping Open Anchor Wings For Thin Walls 5. Place mounting bracket onto [...]

14 099434 CONNECTING T O GAS SUPPL Y NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. Install sediment trap in supply line as shown in Figure 12, page 15. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps mo[...]

15 099434 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Test Gauge Connection * Sediment Trap Tee Joint Pipe Nipple Cap Manual Shutoff Valve * 1/2" NPT Pipe Nipple Heater Cabinet Pressure Regulator Figure 12 - Gas Connection * A[...]

16 099434 4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 5. Correct all leaks at once. Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 13). 2. Pressurize supply piping system by either using compressed air or opening main gas[...]

17 099434 OPERA TING HEA TER FOR YOUR SAFETY READ BEFORE LIGHTING 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 floo[...]

18 099434 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 17. If you don’t smell gas, go to the next step. 5. Press in control knob. Note: You may be running this heater for the first time after hooking up to gas supply[...]

19 099434 TO SELECT HEA TING LEVEL 1. Slightly press in control knob and turn counterclockwise C-clockwise to the LOW, MEDIUM, or HIGH positions. IMPORTANT: Release downward pressure while turning control knob. Control knob will lock at the desired position. WARNING ICON G 001 CAUTION Do not try to adjust heating levels by using the manual shut- of[...]

20 099434 Shutting Off Heater 1. Turn control knob clockwise Clockwise to the OFF position. 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 Clockwise to the PILOT position. MANUAL LIGHTING PROCEDURE 1. Follow steps 1 through 6 under Lighting Ins[...]

21 099434 INSPECTING BURNER Continued BURNER FLAME PATTERN Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. Figure 20 - Correct Burner Flame Pattern Figure 21 - Incorrect Burner Flame Pattern Bad Burner Pattern 5 Plaque GRH/OV 019A If burner flame pattern is incorrect, as shown in Figure 21 • turn[...]

22 099434 CLEANING AND MAINTENANCE ODS/PILOT AND BURNER ORIFICE • Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean. CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust. TROUBLE- SHOOTING[...]

23 099434 TROUBLE- SHOOTING Continued OBSERVED PROBLEM When control knob is pressed in and turned to the PILOT/IGN position, there is spark at ODS/pilot but no ignition ODS/pilot lights but flame goes out when control knob is released POSSIBLE CAUSE 1. Gas supply turned off or manual shutoff valve closed 2. Control knob not pressed in while being t[...]

24 099434 TROUBLE- SHOOTING Continued OBSERVED PROBLEM Burner(s) does not light after ODS/pilot is lit Delayed ignition of burner(s) Burner backfiring during combustion Burner plaque(s) does not glow Slight smoke or odor during initial opera- tion Heater produces a clicking/ticking noise just after burner is lit or shut off REMEDY 1. Clean burner o[...]

25 099434 TROUBLE- SHOOTING Continued WARNING ICON G 001 W ARNING POSSIBLE CAUSE 1. Heater burning vapors from paint, hair spray, glues, etc. See IMPOR- TANT statement above 2. Gas leak. See Warn- ing statement at top of page 1. Not enough fresh air is available 2. Low line pressure 3. ODS/pilot is partially clogged 1. Gas leak. See Warn- ing state[...]

26 099434 SPECIFICA TIONS CGN18R CGN30C BTU (Variable) 6,600/12,000/18,000 6,600/18,000/30,000 Type Gas Natural Only Natural Only Ignition Piezo Piezo Pressure Regulator Setting 6" W.C. 6" W.C. Inlet Gas Pressure (in. of water) Maximum 10.5" 10.5" Minimum 7" 7" Dimensions, Inches (H x W x D) Heater 23.5 x 18.5 x 8 23.5[...]

27 099434 P ARTS CENTRALS These Parts Centrals are privately-owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see abov[...]

28 099434 1 2 3 11 6 4 8 5 6 7 12 13 9 10 14 HEATER EXPLODED VIEW ILLUSTRA TED P ARTS BREAKDOWN Model CGN18R 13-17 13-16 ODS/PILOT BURNER ASSEMBLY A B C 13-1 13-2 13-3 13-10 13-4 13-5 13-6 13-7 13-8 13-9 13-14 13-13 13-12 13-11 13-15[...]

29 099434 P ARTS LIST Model CGN18R This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-03 Front Panel 1 3 098238-06 Grill Guard 1 4 098342-01 Clip-Grill Guard[...]

30 099434 HEATER EXPLODED VIEW ILLUSTRA TED P ARTS BREAKDOWN Model CGN30C ODS/PILOT E D C 13-1 13-2 13-3 13-9 13-4 13-5 13-7 13-6 13-8 13-10 13-14 13-13 13-12 13-15 13-11 B A BURNER ASSEMBLY 1 2 3 11 6 13 4 8 5 6 7 12 9 10 14 13-17 13-16[...]

31 099434 P ARTS LIST Model CGN30C This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-04 Front Panel 1 3 098238-07 Grill Guard 1 4 098342-01 Clip-Grill Guard[...]

099434-01 REV. G 5/94 KEEP THIS WARRANTY W ARRANTY INFORMA TION Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expresse[...]