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INFRARED VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
CGR2N
WARNING: Improper installa-
WARNING: If the information in this manual is
tion, adjustment, alteration,
not followed exactly, a fire or explosion may
service, or maintenance can
result causing property damage, personal
cause injury or property dam-
injury, or loss of life.
age. Refer to this manual for
— Do not store or use gasoline or other
correct installation and opera-
flammable vapors and liquids in the vi
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NATURAL GAS HEATER 3. This heater shall not be installed in a SAFETY Due to high temperatures, the bathroom. appliance should be located out INFORMATION 4. Always run heater with control knob of traffic and away from furniture at LOW or HIGH locked positions. and draperies. Never set control knob between locked WARNINGS positions. Poor combustion and higher Do not place clothing or other levels of carbon monoxide may result. IMPORTANT: Read this owner’s flammable material on or near 5. This he
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OWNER’S MANUAL PRODUCT PRODUCT FEATURES IDENTIFICATION SAFETY PILOT Control Knob This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. Grill PIEZO IGNITION SYSTEM Guard This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to light heater. Burners Heater Cabinet Front Panel Figure 1 - Vent-Free
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NATURAL GAS HEATER Confined and Unconfined Space PROVIDING ADEQUATE AIR FOR VENTILATION The National Fuel Gas Code ANS Z223.1 COMBUSTION AND defines a confined space as a space whose The following are excerpts from National VENTILATION volume is less than 50 cubic feet per 1,000 Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- Btu per hour (4.8 m3 per kw) of the aggre- tion 5.3, Air for Combustion and Ventilation. gate input rating of all appliances installed All spaces in homes fall into one of the thre
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OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued 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 room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x Height = _________________cu. f
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NATURAL GAS HEATER FRESH AIR FOR COMBUSTION AND 12" VENTILATION Continued VENTILATION AIR Ventilation Grills Into Adjoining Room, Ventilation Air From Inside Ventilation Option 2 Grills Or Building into Adjoining Remove Room, Door into This fresh air would come from an adjoining Option 1 Adjoining unconfined space. When ventilating to an Room, adjoining unconfined space, you must pro- Option 3 vide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on th
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OWNER’S MANUAL INSTALLATION WARNING: Never install the CAUTION: If you install the heater heater in a home garage NOTICE: This heater is intended • heater pilot and burner must be • in a bathroom for use as supplemental heat. Use • in a recreational vehicle at least 18 inches above floor this heater along with your pri- • where curtains, furniture, • locate heater where moving mary heating system. Do not in- clothing, or other flammable vehicle will not hit it stall this heater as your primary
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NATURAL GAS HEATER Attaching Mounting Bracket To Placing Heater On Mounting INSTALLATION Wall Bracket Continued 1. Locate two horizontal slots on back Note: Wall anchors, mounting screws, and Methods For Attaching panel of heater (see Figure 10). spacers are in hardware package. The hard- Mounting Bracket To Wall ware package is provided with heater. 2. Place heater onto mounting bracket. Slide horizontal slots onto stand-out Only use last hole on each end of mounting Attaching to Wall Stud Meth
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OWNER’S MANUAL Installation must include equipment shutoff Install sediment trap in supply line as shown INSTALLATION valve, ground joint union, and plugged 1/8" in Figure 12. Locate sediment trap where it Continued NPT tap. Locate NPT tap within reach for is within reach for cleaning. Locate sedi- test gauge hook up. NPT tap must be up- ment trap where trapped matter is not likely CONNECTING TO GAS stream from heater (see Figure 12). to freeze. A sediment trap traps moisture SUPPLY and contamin
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NATURAL GAS HEATER 3. Check all joints from gas meter to INSTALLATION OPERATING equipment shutoff valve (see Figure Continued 14). Apply mixture of liquid soap and HEATER water to gas joints. Bubbles forming CHECKING GAS show a leak. FOR YOUR SAFETY CONNECTIONS 4. Correct all leaks at once. READ BEFORE WARNING: Test all gas pip- Pressure Testing Heater Gas LIGHTING ing and connections for leaks Connections after installing or servicing. Cor- 1. Open equipment shutoff valve (see Fig- WARNING: I
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OWNER’S MANUAL Control OPERATING Knob Burners HEATER Continued LIGHTING Figure 15 - Control Knob In The OFF INSTRUCTIONS Position Ignitor Electrode 1. STOP! Read the safety information Thermocouple on page 10, column 3. Pilot Burner 2. Make sure equipment shutoff valve is fully open. 3. Turn control knob clockwise to the OFF position. 4. Wait five minutes to clear out any gas. Then smell for gas, including Figure 16 - Pilot near the floor. If you smell gas, STOP! Follow “B” in the safety in- fo
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NATURAL GAS HEATER ODS/PILOT AND BURNER INSPECTING • Use a vacuum cleaner, pressurized air, BURNER or small, soft bristled brush to clean. Check pilot flame pattern and burner flame CLEANING BURNER pattern often. PILOT AIR INLET HOLE PILOT FLAME PATTERN We recommend that you clean the unit every 2,500 hours of operation or every three months. Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilot flame We also recommend that you keep the burner pattern. The incorrect
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OWNER’S MANUAL TROUBLESHOOTING CAUTION: Never use a wire, WARNING: Turn off heater needle, or similar object to clean and let cool before servicing. Only Note: For additional help, visit DESA ODS/pilot. This can damage ODS/ a qualified service person should International’s technical service web site pilot unit. service and repair heater. at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed
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NATURAL GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner(s) does not light after ODS/pilot is lit 1. Burner orifice(s) is clogged 1. Clean burner orifice(s) (see Cleaning and Maintenance, page 12) or replace burner orifice(s) 2. Burner orifice(s) diameter is too small 2. Replace burner orifice(s) 3. Inlet gas pressure is too low 3. Contact local natural gas company Delayed ignition of burner(s) 1. Manifold pressure is too low 1. Contact local natural gas company
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OWNER’S MANUAL TROUBLESHOOTING Continued WARNING: 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 gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette
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NATURAL GAS HEATER SPECIFICATIONS REPLACEMENT Btu (Variable) 5,500/10,000 PARTS Type Gas Natural Only Note: Use only original replacement parts. Ignition Piezo This will protect your warranty coverage for Pressure Regulator Setting 6" W.C. parts replaced under warranty. Inlet Gas Pressure (inches of water) Maximum 10.5" PARTS UNDER WARRANTY Minimum 7" Contact authorized dealer from whom you Dimensions, Inches (H x W x D) purchased this product. If they cannot sup- Heater 18 x 14 x 5 ply original
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OWNER’S MANUAL PARTS CENTRALS These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Baltimore Electric Washer Equipment Co. Dayton Hardware 1348 Dixwell Avenue 1715 Main Street P.O. Box 275 Kansas City, MO 64108-2195 North Dayton Station Hamden, CT 06514-0322 1-800-397-7553 KS, MO, AR Dayton, OH 45404-0275 203-248-7553 816-842-3911 All States www.washerparts.com 937-258-3721 Parts Department
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NATURAL GAS HEATER ILLUSTRATED PARTS BREAKDOWN CGR2N 26 1 13 10 19 11 14 9 4 25 8 6 7 12 10 5 7 18 22 16 21 15 18 24 23 17 20 7 3 2 7 5-1 5-2 ODS/PILOT 107292 18
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OWNER’S MANUAL This list contains replaceable parts used in your heater. When ordering parts, follow the instructions PARTS LIST listed under Replacement Parts on page 16 of this manual. CGR2N KEY PART NO. NUMBER DESCRIPTION QTY. 1 L98409-13 Cabinet Assembly 1 2 L98005-04 Lower Front Panel Assembly 1 3 L98410-05 Reflector Unit 1 4 L98103-06 Burner Assembly 1 5 L98071-05 ODS Pilot Assembly 1 5-1 098514-01 Thermocouple 1 5-2 L98071-07 Ignitor Electrode 1 6 L98072-02 ODS Mounting Bracket 1 7 L9
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WARRANTY INFORMATION KEEP THIS WARRANTY 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, expressed or implied. LIMITED WARRANTY COMFORT GLOW VENT-FREE RESIDENTIAL GAS HEAT
