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Desa CGB3930PR - page 1
Save this manual for future reference. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS • 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 fro ...
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Desa CGB3930PR - page 2
2 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR SAFETY INFORMA TION IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon mo ...
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Desa CGB3930PR - page 3
3 104307 OWNER’S MANUAL PRODUCT IDENTIFICA TION Figure 1 - Vent-Free Gas Log Heater (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 heater is designed for vent-free operation with flue damp ...
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Desa CGB3930PR - page 4
4 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR 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 c ...
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Desa CGB3930PR - page 5
5 104307 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 ...
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Desa CGB3930PR - page 6
6 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR 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& ...
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Desa CGB3930PR - page 7
7 104307 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. Creosote will ignite if highly heated. A dirt ...
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Desa CGB3930PR - page 8
8 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR INST ALLA TION Continued Heat Resistant Material (A) Minimum Non-Combustible Material Clearances If Not Using Mantel Note: If using a mantel, proceed to If Using Mantel . If not using a mantel, follow the information below. You must have non-combustible material(s) abo ...
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Desa CGB3930PR - page 9
9 104307 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. When using a hood there are still ce ...
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Desa CGB3930PR - page 10
10 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR Installation Items Needed Before installing heater, make sure you have the items listed below. • piping (check local codes) • sealant (resistant to propane/LP gas) • manual shutoff valve * • test gauge connection * • sediment trap • tee joint • pipe wren ...
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Desa CGB3930PR - page 11
11 104307 OWNER’S MANUAL INST ALLA TION Continued CAUTION: Use only new, black iron or steel pipe. Inter- nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur. Installation must includ ...
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Desa CGB3930PR - page 12
12 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR INST ALLA TION Continued Figure 14 - Manual Shutoff Valve ON POSITION OFF POSITION Open Closed Manual Shutoff Valve Figure 15 - Checking Gas Joints Pressure Testing Heater Gas Connections 1. Open manual shutoff valve (see Fig- ure 14). 2. Open propane supply tank valv ...
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Desa CGB3930PR - page 13
13 104307 OWNER’S MANUAL 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 (CGD3924PR) Each log is marked with a number. These numbers will help you identify the log ...
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Desa CGB3930PR - page 14
14 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR 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. Each log is marked with a n ...
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Desa CGB3930PR - page 15
15 104307 OWNER’S MANUAL 4. Press in and turn contr ol knob clock- wise to the OFF position. 5. W ait fi ve (5) minutes to clear out any gas. Then smell f or gas, including near the floor . If you smell gas, STOP! F ollow “B” in the safety in- for mation above. If y ou don’t smell gas, go to the next step. 6. Press in and turn contr ol knob ...
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Desa CGB3930PR - page 16
16 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR OPERA TING HEA TER Continued Figure 27- Pilot CAUTION: Do not try to adjust heating levels by using the manual shutoff valve. WARNING: Make sure the re- mote selector switch is in the OFF position when you are away from home for long periods of time. Heater will come ...
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Desa CGB3930PR - page 17
17 104307 OWNER’S MANUAL 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 frequent cleanin ...
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Desa CGB3930PR - page 18
18 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR 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. CAUTION: Never use a wire, needle, or similar object to clean OD ...
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Desa CGB3930PR - page 19
19 104307 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/condensation noticed on windows Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent wal ...
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Desa CGB3930PR - page 20
20 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR 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 ...
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Desa CGB3930PR - page 21
21 104307 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). SPECIFICA TIONS CGD3924PR/CGB3924PR/CGB3930PR Btu (Variable) 20,000/39,000 Type Gas Propane Only Ignition Piezo Man ...
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Desa CGB3930PR - page 22
22 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR ILLUSTRA TED PA R T S BREAKDOWN CGD3924PR 7 16 16 17 25 16 3 2 1 4 11 21 10 9 12 15 8 19 18 20 6 14 5 13 13 REMOTE OFF ON 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 AUTO MAN OFF STATUS ON LO HI TEMP 20 ...
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Desa CGB3930PR - page 23
23 104307 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 AR TS LIST CGD3924PR 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 ...
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Desa CGB3930PR - page 24
24 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR ILLUSTRA TED PA R T S BREAKDOWN CGB3924PR CGB3930PR 26 16 16 17 25 16 4 1 2 3 5 11 21 10 9 12 15 8 7 14 6 13 13 19 18 20 REMOTE OFF ON 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 AUTO MAN OFF STATUS ON LO HI TEMP 20 ...
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Desa CGB3930PR - page 25
25 104307 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 AR TS LIST CGB3924PR CGB3930PR KEY CGB3924PR CGB3930PR NO. PART NUMBER PART NUMBER DESCRIPTION QTY. 1 104897-01 104897-02 Middle Log (#1) 1 2 104898-01 104898-0 ...
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Desa CGB3930PR - page 26
26 104307 UNVENTED PROP ANE/LP GAS LOG HEA TER CGD3924PR, CGB3924PR and CGB3930PR 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 prod- uct. If they can’t supply original replace- ment part(s), call DESA International’s ...
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Desa CGB3930PR - page 27
27 104307 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________ ...
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Desa CGB3930PR - page 28
LIMITED WARRANTY COMFORT GLOW VENT-FREE PROPANE GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for two (2) year 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 ...
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