Instruction/ maintenance manual of the product CGB3924NR Desa
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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.
2 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR 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.
3 104306 OWNER’S MANUAL 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.
4 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR 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.
5 104306 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.
6 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR AIR FOR COMBUSTION AND VENTILA TION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space.
7 104306 OWNER’S MANUAL INST ALLA TION NOTICE: A qualified service per- son 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.
8 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR INST ALLA TION Continued Heat Resistant Material (A) Minimum Non-Combustible Material Clearances If Not Using Mantel Note: If using a mantel, go to If Using Mantel . If not using a mantel, follow the information on this page.
9 104306 OWNER’S MANUAL INST ALLA TION Continued Figure 6 - Minimum Mantel Clearances Without Using Hood MANTEL CLEARANCES If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6). If minimum clearances in Figure 6 are not met, you must have a hood.
10 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR Figure 10 - Attaching Flexible Gas Hose to Heater Figure 11 - Attaching Base Assembly to Fireplace Floor INST ALLA TION Continued INSTALLING HEATER BASE ASSEMBLY IMPORTANT: Make sure the heater burn- ers are level.
11 104306 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 NOTICE: A qualified service per- son must connect heater to gas supply.
12 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR INST ALLA TION Continued Figure 13 - Manual Shutoff Valve ON POSITION OFF POSITION Open Manual Shutoff Valve Figure 14 - C.
13 104306 OWNER’S MANUAL 3 INST ALLA TION Continued 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 (CGD3924NR) Each log is marked with a number.
14 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR INSTALLING LOGS ON MODELS CGB3924PR AND CGB3930PR 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.
15 104306 OWNER’S MANUAL 1. STOP! Read the safety inf ormation above. 2. Make sur e manual shutoff valve is fully open. 3. Set remote 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.
16 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR TO TURN OFF GAS TO APPLIANCE 1. Follow steps 1 thr ough 6 under Light- ing Instructions , pages 15 and 16. 2. Depress contr ol knob and light pilot with match. 3. Keep contr ol knob pressed in f or 30 seconds after lighting pilot.
17 104306 OWNER’S MANUAL OPERA TING HEA TER Continued TEMP ST A TUS HI LO MAN ON AUT O OFF Increases Room Temperature Decreases Room Temperature Turns Burners On and Off Shows Current Operation Mode.
18 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR TROUBLESHOOTING Note: All troubleshooting items are listed in order of operation. WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.
19 104306 OWNER’S MANUAL 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/.
20 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR 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.
21 104306 OWNER’S MANUAL TECHNICAL SER VICE You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Techni- cal Service Department at 1-800-DESA LOG (1-800-337-2564).
22 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR ILLUSTRA TED PA R T S BREAKDOWN CGD3924NR 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 REMOTE O.
23 104306 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.
24 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR ILLUSTRA TED PAR TS BREAKDOWN CGB3924NR CGB3930NR 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 .
25 104306 OWNER’S MANUAL PAR TS LIST CGB3924NR CGB3930NR KEY CGB3924NR CGB3930NR NO. PART NUMBER PART NUMBER DESCRIPTION QTY. 1 104897-01 104897-02 Middle Log (#1) 1 2 104898-01 104898-02 Back Log (.
26 104306 UVENTED NA TURAL GAS LOG HEA TER CGD3924NR, CGB3924NR and CGB3930NR 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.
27 104306 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________.
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.
An important point after buying a device Desa CGB3924NR (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa CGB3924NR yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa CGB3924NR - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa CGB3924NR you will learn all the available features of the product, as well as information on its operation. The information that you get Desa CGB3924NR will certainly help you make a decision on the purchase.
If you already are a holder of Desa CGB3924NR, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa CGB3924NR.
However, one of the most important roles played by the user manual is to help in solving problems with Desa CGB3924NR. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa CGB3924NR along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
