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BLUE-FLAME VENT-FREE
NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
CGN20
RN30D CGN20L
®
Models: CGN20, CGN20L, and RN30D
WARNING: Improper installation,
WARNING: If the information in this manual is not
adjustment, alteration, service, or
followed exactly, a fire or explosion may result
maintenance can cause injury or
causing property damage, personal injury, or loss
property damage. Refer to this
of life.
manual for correct installation
— Do not store or use gasoline or other
and
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS 2. If you smell gas 13. Do not use heater if any part has been SAFETY • shut off gas supply under water. Immediately call a quali- INFORMATION • do not try to light any appliance fied service technician to inspect the • do not touch any electrical switch; room heater and to replace any part of do not use any phone in your building the control system and any gas control WARNINGS WARNING ICON G 001 • immediately call your gas suppli
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OWNER’S MANUAL Unusually Tight Construction PRODUCT The air that leaks around doors and win- IDENTIFICATION dows may provide enough fresh air for Ignitor Button Control Knob combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air. Unusually tight construction is de- fined as construction where: a. walls and ceilings exposed to the outside atmosphere have a con- Grill tinuous water vapor retarder with Guard -11 a rating of one perm
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS Example: VENTILATION AIR AIR FOR Gas water heater 40,000 Btu/Hr Ventilation Air From Inside COMBUSTION Vent-free heater + 20,000 Btu/Hr Building Total = 60,000 Btu/Hr AND VENTILATION This fresh air would come from an adjoining Continued * Do not include direct-vent gas appliances. unconfined space. When ventilating to an Direct-vent draws combustion air from the adjoining unconfined space, you must pro- DETERM
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OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued 12" Ventilation Grills Into Adjoining Room, Ventilation Option 2 Grills Or into Adjoining Remove Room, Door into Option 1 Adjoining Room, Option 3 12" Figure 2 - Ventilation Air from Inside Building Ventilated Outlet Attic Ventilation Air From Outdoors Air Provide extra fresh air by using ventilation grills or ducts. You must provide two per- Outlet manent openings: one within 12" of the Air To Attic ceiling and one within 12" of
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS IMPORTANT: Vent-free heaters add mois- INSTALLING TO WARNING: ture to the air. Although this is beneficial, Never install the heater WALL installing heater in rooms without enough • in a bedroom or bathroom ventilation air may cause mildew to form NOTICE: A qualified service per- • in a recreational vehicle from too much moisture. See Air for Com- son must install heater. Follow • where curtains, furniture, bustion and Ventilation
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OWNER’S MANUAL Attaching to wall stud: This method Attaching Mounting Bracket To INSTALLING TO provides the strongest hold. Insert mounting Wall WALL screws through mounting bracket and into Note: Wall anchors, mounting screws, and wall studs. Continued spacers are in hardware package. The hard- Attaching to wall anchor : This method ware package is provided with heater. INSTALLING HEATER TO allows you to attach mounting bracket to Attaching to wall stud method WALL hollow walls (wall areas b
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS 7. Hold spacer in place with one hand. IMPORTANT: Check gas line pressure be- INSTALLING TO With other hand, insert mounting screw fore connecting heater to gas line. Gas line WALL through bottom mounting hole and pressure must be no greater than 14 inches spacer. Place tip of screw in opening of water. If gas line pressure is higher, Continued of wall anchor or drilled hole. heater regulator damage could occur. Placing Heater On M
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OWNER’S MANUAL 3. Pressurize supply piping system by ei- PRESSURE TESTING CONNECTING TO ther using compressed air or HEATER GAS GAS SUPPLY opening main gas valve located on or CONNECTIONS Continued near gas meter. 1. Open manual shutoff valve (see Fig- 4. Check all joints of gas supply piping Apply pipe joint sealant lightly to male ure 13). system. Apply mixture of liquid soap threads. This will prevent excess sealant 2. Open main gas valve located on or near and water to gas joints. Bubbles fo
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS 3. Turn control knob clockwise 7. Keep control knob pressed in for 30 OPERATING HEATER to the OFF position. seconds after lighting pilot. After 30 seconds, release control knob. FOR YOUR Control Knob Ignitor Button Note: If pilot goes out, repeat steps SAFETY READ 3 through 7. PILOT LOW BEFORE LIGHTING 8. Turn control knob counterclockwise OFF to the LOW position. The HIGH WARNING: If you do not fol- IGNITOR main burner should l
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OWNER’S MANUAL BURNER FLAME PATTERN INSPECTING CLEANING AND Figure 19 shows a correct burner flame BURNER MAINTENANCE pattern. Figure 20 shows an incorrect burner flame pattern. The incorrect burner flame Check pilot flame pattern and burner flame WARNING: Turn off heater pattern shows yellow tipping of the flame. It pattern often. and let cool before cleaning. also shows the flame higher than 1/2 the heat shield height. PILOT FLAME PATTERN CAUTION: You must keep control areas, burner, and cir
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS TROUBLESHOOTING WARNING: Turn off and un- CAUTION: Never use a wire, plug heater and let cool before needle, or similar object to clean Note: All troubleshooting items are listed servicing. Only a qualified ser- ODS/pilot. This can damage ODS/ in order of operation. vice person should service and pilot unit. repair heater. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed, there is no 1. Ignitor electrode po
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OWNER’S MANUAL TROUBLESHOOTING Continued POSSIBLE CAUSE OBSERVED PROBLEM REMEDY 1. Burner orifice is clogged or damaged Burner backfiring during 1. Clean burner (see Cleaning and Mainte- combustion nance, page 11) or replace burner orifice 2. Inlet gas pressure is too low 2. Contact local natural gas company 3. Burner damaged 3. Replace burner 4. Gas regulator defective 4. Replace gas regulator 1. Not enough air Yellow flame during burner combustion 1. Check burner for dirt and debris. If found,
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS TROUBLESHOOTING Continued IMPORTANT: Operating heater where im- WARNING : If you smell gas purities in air exist may create odors. Clean- • Shut off gas supply. ing supplies, paint, paint remover, cigarette • Do not try to light any appliance. smoke, cements and glues, new carpet or • Do not touch any electrical switch; do not use any phone in your textiles, etc., create fumes. These fumes may building. mix with combustion air and
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OWNER’S MANUAL TECHNICAL SPECIFICATIONS SERVICE RN30D CGN20(L) Btu (Variable) 15,000/30,000 10,000/20,000 You may have further questions about in- Type Gas Natural Only Natural Only stallation, operation, or troubleshooting. Ignition Piezo Piezo If so, contact DESA International’s Techni- Pressure Regulator Setting 3" W.C. 3" W.C. cal Service Department at 1-800-323-5190. Inlet Gas Pressure (inches of water) Maximum 10.5" 10.5" Minimum 4" 4" SERVICE HINTS Dimensions, Inches (H x W x D) When gas
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS ILLUSTRATED PARTS 21 BREAKDOWN 22 RN30D 26 27 14 8 20 23 24 11 19 10 25 12 4 8 17 13 9 16 18 7 5 3 6 15 2 1 10-1 10-2 ODS/Pilot 103568 16
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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 15 of this manual. RN30D KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098345-01AC Front Panel 1 3 103476-02 Grill Guard 1 4 101108-01 Clip, Grill Guard 2 5 099001-01BR Heat Shield 1 6 M11084-26 Screw, #10 x 3/8" 4 7 098352-02BR Deflector Unit 1 8 098271-03 Ignitor Cable 1 9 098249-01 Nut, M5 2 10 100701-0
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS ILLUSTRATED 23 PARTS 24 28 BREAKDOWN 29 16 CGN20 CGN20L 10 25 22 26 13 21 12 4 14 27 19 10 15 18 11 7 9 6 3 20 5 8 17 2 12-1 1 12-2 ODS/Pilot 103568 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 15 of this manual. CGN20 CGN20L KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-03 Front Panel (CGN20) 1 098742-19 Front Panel, Ivory (CGN20L) 1 3 103476-01 Grill Guard 1 4 101108-01 Grill Guard Clip 2 5 098533-04AA Bottom Glass Retainer 1 6 098260-09 Glass Panel 1 7 098532-04AA Top Glass Retainer 1 8
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BLUE-FLAME CGN20, CGN20L AND RN30D VENT-FREE NATURAL GAS HEATERS REPLACEMENT PARTS PARTS CENTRALS Note: Use only original replacement parts. These Parts Centrals are privately owned businesses. They have agreed to support our This will protect your warranty coverage for customer’s needs by providing original replacement parts and accessories. When calling a Parts Central, ask for the Parts Department. parts replaced under warranty. PARTS UNDER WARRANTY Baltimore Electric East Coast Energy 1348 D
