Desa CGD3924NRA manual

Save this manual for future reference. WARNING: Improper installation, ad- justment, alteration, service, or mainte- nance can cause injury or property dam- age. Refer to this manual for correct installation and operational procedures. For assistance or additional informa- tion consult a qualified installer, ser- vice agency, or the gas supplier. W[...]

2 105677 UNVENTED NA TURAL GAS LOG HEA TER SAFETY INFORMA TION Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- semble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide th[...]

3 105677 OWNER’S MANUAL AUTO MAN OFF STATUS ON LO HI TEMP PRODUCT IDENTIFICA TION Figure 1 - Yellow Flame Vent-Free Gas Log Heater Shown (Logs May Vary by Model) OPERATION This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by realistic dancing, yellow flames. This heat[...]

4 105677 UNVENTED NA TURAL GAS LOG HEA TER AIR FOR COMBUSTION AND VENTILA TION Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. Durin[...]

5 105677 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet 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 pa[...]

6 105677 UNVENTED NA TURAL GAS LOG HEA TER 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 pro- vide two permanent openings: one within 12" of the ceiling and one within 12[...]

7 105677 OWNER’S MANUAL INST ALLA TION WARNING: A qualified ser- vice person must install heater. Follow all local codes. WARNING: Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creosote, ashes and loose paint by a quali- fied chimney cleaner. Creosote will ignite if highly heated. A dir[...]

8 105677 UNVENTED NA TURAL GAS LOG HEA TER INST ALLA TION Continued Heat Resistant Material (A) Minimum Noncombustible Material Clearances If Not Using Mantel Note: If using a mantel, go to If Using Mantel . If not using a mantel, follow the information below. You must have noncombustible material(s) above the fireplace opening. Noncombus- tible ma[...]

9 105677 OWNER’S MANUAL INST ALLA TION Continued Figure 6 - Minimum Mantel Clearances Without Using Hood MANTEL CLEARANCES In addition to meeting noncombustible mate- rial clearances, you must also meet required clearances between fireplace opening and mantel shelf. If you do not meet the clear- ances listed below, you will need a hood. Determini[...]

10 105677 UNVENTED NA TURAL GAS LOG HEA TER INST ALLA TION Continued INSTALLING HEATER BASE ASSEMBLY IMPORTANT: Make sure the heater burn- ers are level. If heater is not level, heater will not work properly. WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fire- place floor to allow access to heater control [...]

11 105677 OWNER’S MANUAL CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings. INST ALLA TION Continued Continued CONNECTING TO GAS SUPPLY WARNING: A qualified service person must connect heater to gas supply. Follow all local codes. Installation Items Needed Before installing heater,[...]

12 105677 UNVENTED NA TURAL GAS LOG HEA TER INST ALLA TION Continued Figure 14 - Manual Shutoff Valve ON POSITION OFF POSITION Open Manual Shutoff Valve Figure 15 - Checking Gas Joints Gas Meter Manual Shutoff Valve Thermostat Gas Valve or Control Valve Location Closed WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid [...]

13 105677 OWNER’S MANUAL AUTO OFF ON 3 AUTO OFF ON INST ALLA TION Continued AUTO OFF O N WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. INSTALLING LOGS (CGD3924NRA) Each log is marked with a number. These[...]

14 105677 UNVENTED NA TURAL GAS LOG HEA TER INSTALLING LOGS ON MODELS CGB3924PRA AND CGB3930PRA WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. INST ALLA TION Continued A U T O O F F ON Figure 25 - Installin[...]

15 105677 OWNER’S MANUAL 1. STOP! Read the safety inf ormation in column 1. 2. Make sur e manual shutoff valve is fully open. 3. Set selector switch in the OFF position. WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life. A. This appliance has a pil[...]

16 105677 UNVENTED NA TURAL GAS LOG HEA TER TO TURN OFF GAS TO APPLIANCE 1. Follow steps 1 thr ough 6 under Light- ing Instructions , page 15. 2. Depress contr ol knob and light pilot with match. 3. Keep contr ol knob pr essed in for 30 seconds after lighting pilot. After 30 seconds, release contr ol knob . Now follo w ste ps 9 thr ough 11, column [...]

17 105677 OWNER’S MANUAL OPERA TING HEA TER Continued TEMP ST ATUS HI LO MAN ON AUTO OFF Increases Room Temperature Decreases Room Temperature Turns Burners On and Off Shows Current Operation Mode Shows Temperature Setting Figure 33 - Thermostat Hand-Held Remote Control Unit Selections The Log Heater Will Automati- cally Cycle Between Pilot and t[...]

18 105677 UNVENTED NA TURAL GAS LOG HEA TER CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more[...]

19 105677 OWNER’S MANUAL Continued TROUBLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit. POSSIBLE CAUSE 1. Ignitor electrode not connected to igni- tor cable [...]

20 105677 UNVENTED NA TURAL GAS LOG HEA TER OBSERVED PROBLEM Burner does light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Moisture/condensation noticed on windows Heater produces a whistling noise when burner is lit White powder residue forming within burner box o[...]

21 105677 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 re[...]

22 105677 UNVENTED NA TURAL GAS LOG HEA TER ILLUSTRA TED PA R T S BREAKDOWN CGD3924NRA 7 16 16 17 25 16 3 2 1 4 11 21 10 9 12 15 8 19 18 20 6 14 5 13 27 26 26 22 23 24 O F F P I L O T O N H I L O O F F P I L O T O N H I L O 28 29[...]

23 105677 OWNER’S MANUAL 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. P ARTS LIST CGD3924NRA KEY NO. PART NUMBER DESCRIPTION QTY. 1 103008-01 Back Log (#1) 1 2 103009-01 Middle Log (#2) 1 3 103010-01 Front Log (#3) 1 4 103011-01 Cro[...]

24 105677 UNVENTED NA TURAL GAS LOG HEA TER ILLUSTRA TED PAR TS BREAKDOWN CGB3924NRA CGB3930NRA 28 16 16 17 25 16 5 4 1 2 3 11 21 10 9 12 15 8 19 18 20 7 14 6 13 27 26 26 23 24 O F F P I L O T O N H I L O O F F P I L O T O N H I L O 22 29 30[...]

25 105677 OWNER’S MANUAL PAR TS LIST CGB3924NRA CGB3930NRA KEY CGB3924NRA CGB3930NRA NO. PART NUMBER PART NUMBER DESCRIPTION QTY. 1 104897-01 104897-02 Middle Log (#1) 1 2 104898-01 104898-02 Back Log (#2) 1 3 104899-01 104899-02 Crossover Log (#3) 1 4 104896-01 104896-02 Front Log (#4) 1 5 104900-01 104900-02 Log Piece (#5) 1 6 103779-01 103779-[...]

26 105677 UNVENTED NA TURAL GAS LOG HEA TER Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Technical Service Department at 1-800-DES[...]

27 105677 OWNER’S MANUAL SPECIFICA TIONS Btu (Variable) 20,000/39,000 Type Gas Natural Gas Only Ignition Piezo Manifold Pressure 3.5" W.C. Inlet Gas Pressure (in. of water) Maximum 10.5" Shipping Weight 30 lbs. WIRING DIAGRAM Receiver Black On Off Remote Red Red White Thermopile Gas Control TPTH TH TPTH TP ACCESSORIES Purchase these fir[...]

LIMITED WARRANTY COMFORT GLOW VENT-FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim[...]