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Desa 24", 30" - page 1
Sav e this manual for future reference. For more information, visit www .desatech.com UNVENTED (VENT -FREE) GAS LOG HEA TER OWNER’S OPERA TION AND INST ALLA TION MANU AL Biltmore Split Oak, Seasonal Oak and Smok y Mountain Oak Logs V aria ble Manually-Contr olled Models Also Design-Cer tified As V ented Decorativ e Appliances 18", 24" ...
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Desa 24", 30" - page 2
www .desatech.com 1 13097-01C 2 W ARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer , service agency or the gas supplier . W ARNING: ...
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Desa 24", 30" - page 3
www .desatech.com 1 13097-01C 3 SAFETY INFORMATION WAR NIN G: Thi s pro duct con - ta ins an d/o r ge ne rat es ch emi cal s kno wn to the stat e of Cal ifo rni a to cause ca nce r or birth de fec ts or oth er rep rod uct ive ha rm. IMPORTANT: Read this owner’s manual carefully and completely b e f o r e t r y i n g t o a s s e m b l e , operate ...
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Desa 24", 30" - page 4
www .desatech.com 1 13097-01C 4 4. 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 neighborʼs phone. Follow the gas supplierʼs instructions • if you cannot reach your gas supplier, call the ? ...
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Desa 24", 30" - page 5
www .desatech.com 1 13097-01C 5 Figure 1 - V ent-Free Gas Log Heater (Logs May V ary by Model, Seasonal Oak Single Burner Model Shown) Base Grate Log Set Control Knob Burner Piezo Ignitor PRODUCT IDENTIFICATION PRODUCT FEA TURES OPERA TION This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney ...
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Desa 24", 30" - page 6
www .desatech.com 1 13097-01C 6 Exhaust fans, fireplaces, clothes dryers and fuel burni ng appl iances draw a ir fro m the house t o operate. Y ou must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances. PROVIDING ADEQUA TE VENTILA TION The following are excerpts from National Fuel Ga ...
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Desa 24", 30" - page 7
www .desatech.com 1 13097-01C 7 Example: Gas water heater ____________ Btu/Hr V ent-free fireplace + ___________ Btu/Hr T otal = ___________ Btu/Hr 4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used. _________ Bt u/ Hr ( ma xi mu m th e sp ac e ca n su pp or t) _________ Bt u/ Hr ( ac tu al a mo un t of B tu ...
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Desa 24", 30" - page 8
www .desatech.com 1 13097-01C 8 INST ALLA TION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri- mary heat source. If you have a central heating system, you may run system’s circulating blower while using log heater . This will help circula ...
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Desa 24", 30" - page 9
www .desatech.com 1 13097-01C 9 INST ALLA TION AND CLEARANCES (V ent-Free Operation Only ) W ARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor , ceiling and adjoining wall. MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MA TERIALS Log Size Side W all Ceiling 18", 24", 30" 16" 42" LOG SI ...
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Desa 24", 30" - page 10
www .desatech.com 1 13097-01C 10 If Using Mantel Y ou must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombus- tible material must extend at least 8" up (for all m ...
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Desa 24", 30" - page 11
www .desatech.com 1 13097-01C 1 1 NOT ICE: If your instal lat ion does not meet the minimum clear- ances shown, you must do one of the following: • operate the logs only with the flue damper open • raise the mantel to an accept- able height • remove the mantel INST ALLA TION Continued Minimum Noncombustible Material 8" Min. 12" 15& ...
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Desa 24", 30" - page 12
www .desatech.com 1 13097-01C 12 Se e c ha rt bel ow f or min im um pe rma ne nt flu e opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times. INST ALLA TION Continued INST ALLING HEA TER BASE ASSEMBL Y CAUTI ON: Do not remov e the da ta plat es att ach ed to the he ate r base assembly ...
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Desa 24", 30" - page 13
www .desatech.com 1 13097-01C 13 INST ALLA TION Continued 7. Mark screw locati ons through holes in mount- ing brackets (see Figure 12 and 13). If install - ing in a brick-bottom fireplace, mark screw locations in mortar joint of bricks. 8. Remove heater base from fireplace. 9. Drill holes at marked locations using 3/16" drill bit. 10. Attac ...
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Desa 24", 30" - page 14
www .desatech.com 1 13097-01C 14 For propane/LP units, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce inco min g gas press ure to betwee n 11 and 14 inch es of water. If you do not reduce incoming gas pres - sure, heater regulator damage could occur. Install external regula ...
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Desa 24", 30" - page 15
www .desatech.com 1 13097-01C 15 INST ALLA TION Continued CA UTI ON: M ak e su re ext er- na l re gu lat or has be en ins tal led be twe en pro pan e/L P s upp ly and h ea te r. Se e gu id el in e s un de r Co n - ne cti ng to Gas Su ppl y , pag e 1 3. PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) 1. Disco ...
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Desa 24", 30" - page 16
www .desatech.com 1 13097-01C 16 INSTALLING LOGS CAUTION: After installa- tion and periodically thereafter, check to ensure that no flame comes in contact with any log. With the heater set to HI, check to see if flames cont act any log. If so, reposition logs according to the log installation instructions in this manual. Flames contact - ing logs ...
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Desa 24", 30" - page 17
www .desatech.com 1 13097-01C 17 INST ALLA TION Continued Figure 22 - Installing Crossover Log #4 (CCL3930PTB/NTB Shown) Middle Log (#2) Back Log (#3) Pins Crossover Log (#4) 5. For CCL 39 24 PT A/ NT A and CCL 39 30 PT B/ NT B Only : Locate pin and hole on the botto m of cros sov er log (#5) . Slide the pin into the hole loca ted in cros sove r lo ...
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Desa 24", 30" - page 18
www .desatech.com 1 13097-01C 18 INST ALLA TION Continued Single Burner Seasonal Oak Models CRL2718PA/NA, CRL3124PA/NA WARNING: Failure to posi- tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage o r personal injury. The Seasonal Oak Log Set is a revers ...
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Desa 24", 30" - page 19
www .desatech.com 1 13097-01C 19 OPERATING HEATER MANUALLY-CONTROLLED MODELS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot ...
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Desa 24", 30" - page 20
www .desatech.com 1 13097-01C 20 5. Slightly depress and turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 30). Note: You may be running this heater for the first time after hooking up to gas sup- ply. If so, the control knob may need to be pressed in for 30 seconds or more. This will ...
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Desa 24", 30" - page 21
www .desatech.com 1 13097-01C 21 THERMOST A T -CONTROLLED MODELS FOR YOUR SAFETY READ BEFORE LIGHTING W ARNING: If you do not fol- low these instructions exactly , a fire or explosion may result causing property damage, per- sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow t ...
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Desa 24", 30" - page 22
www .desatech.com 1 13097-01C 22 5. Tu rn co nt ro l kno b cou nter cloc kwis e to the PILOT position. Press in control knob for five (5) seconds (see Figur e 32). Note: Y ou may be running this heater for the first time after hooking up to gas sup - ply . If so, the control knob may need to be pressed in for 30 seconds or more. This will allow a ...
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Desa 24", 30" - page 23
www .desatech.com 1 13097-01C 23 INSPECTING B URNERS Check pilot flame pattern and burner flame pat- terns often. PILOT FLAME P A TTERN Figure 34 sh ows a cor rec t pil ot fla me pa tt ern . Figure 35 sh ow s an in co rr ec t pi lo t flam e pa tt er n. Th e in co r - re ct pi lo t fla me is no t to uch in g th e the rmoc oup le . Th is wi ll c ...
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Desa 24", 30" - page 24
www .desatech.com 1 13097-01C 24 2. Ins pect bur ner , pil ot and primar y air inlet hole s on injector holder for dust and dirt (see Figure 36). 3. Blow air through the ports/slots and holes in the burner . 4. Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint or pet hair with a so ...
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Desa 24", 30" - page 25
www .desatech.com 1 13097-01C 25 TROUBLESHOO TING W ARNING: T urn 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. Note: All troubleshooting items are listed in order of operation. POSS ...
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Desa 24", 30" - page 26
www .desatech.com 1 13097-01C 26 TROUBLESHOO TING Continued POSSIBLE CAUSE 1. Burner orifice clogged 2. Inlet gas pressure is too low 1. Manifold pressure is too low 2. Burner orifice clogged 1. Burner orifice is clogged or damaged 2. Damaged burner 3. Gas regulator defective 1. Not enough air 2. Gas regulator defective 3. Residues from manufact ...
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Desa 24", 30" - page 27
www .desatech.com 1 13097-01C 27 TROUBLESHOO TING Continued W ARNING: 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. Fol- low the gas supplier ’ s instructions. • If ...
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Desa 24", 30" - page 28
www .desatech.com 1 13097-01C 28 OPTIONAL POSITIONING OF THERMOST A T SENSING B ULB FOR MASONR Y AND F ACTOR Y - BUIL T MET AL FIREPLACE If your log set cycles to pilot, but the room tem- perature drops to a lower than ideal comfort level before the log set comes back on, you may want to reposition the thermostat sensing bulb. The thermostat sensin ...
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Desa 24", 30" - page 29
www .desatech.com 1 13097-01C 29 4. The mounting clip must be a minimum of 3" from bottom of fireplace to prevent crimping of capillary . Once you have decided on a location, clean the area thoroughly . Remove the paper backing from the adhesive on back of mounting clip. Press the clip into the new location so that the thermostat sensing bulb ...
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Desa 24", 30" - page 30
www .desatech.com 1 13097-01C 30 ILL USTRA TED P ARTS BREAKDOWN V ARIABLE MANUALL Y -CONTROLLED BIL TMORE SPLIT OAK MODELS CCL3018P A, CCL3018NA, CCL3924P A AND CCL3924NA 24 21 1 1 12 13 4 5 3 2 21 8 21 7 10 9 16 15 17 19 22 18 14 19 23 20 18 6 1 ...
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Desa 24", 30" - page 31
www .desatech.com 1 13097-01C 31 P ARTS LIST V ARIABLE MANUALL Y -CONTROLLED BIL TMORE SPLIT OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 38 of this manual. KEY PART NUMBER NO. CCL3018PA CCL3018NA CCL3924PA CCL3924NA DESCRIPTION QTY. 1 111342 ...
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Desa 24", 30" - page 32
www .desatech.com 1 13097-01C 32 ILL USTRA TED P ARTS BREAKDOWN THERMOST A TICALL Y -CONTROLLED BIL TMORE SPLIT OAK MODELS CCL3018PT A AND CCL3018NT A 7 23 23 23 10 8 13 14 15 4 5 1 2 1 1 12 19 21 21 24 22 20 6 3 9 18 23 17 16 ...
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Desa 24", 30" - page 33
www .desatech.com 1 13097-01C 33 P ARTS LIST THERMOST A TICALL Y -CONTROLLED BIL TMORE SPLIT OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 38 of this manual KEY P ART NUMBER NO. CCL3018PT A CCL3018NT A DESCRIPTION QTY . 1 1 1 1340-03 1 1 1340- ...
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Desa 24", 30" - page 34
www .desatech.com 1 13097-01C 34 ILL USTRA TED P ARTS BREAKDOWN THERMOST A TICALL Y -CONTROLLED BIL TMORE SPLIT OAK MODELS CCL3924PT A, CCL3924NT A, CCL3930PTB AND CCL3930NTB 9 23 23 23 10 8 13 14 15 4 5 1 2 Peg positions vary according to model. 1 1 12 19 21 21 24 22 20 6 7 25 18 23 17 16 ...
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Desa 24", 30" - page 35
www .desatech.com 1 13097-01C 35 P ARTS LIST THERMOST A TICALL Y -CONTROLLED BIL TMORE SPLIT OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 38 of this manual. KEY P ART NUMBER NO. CC L3 924 PTA CCL3 92 4N TA CCL 3930 PT B CC L393 0N TB DESCRIPT ...
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Desa 24", 30" - page 36
www .desatech.com 1 13097-01C 36 ILL USTRA TED P ARTS BREAKDOWN V ARIABLE MANUALL Y -CONTROLLED SEASONAL OAK MODELS CRL2718P A, CRL2718NA, CRL3124P A AND CRL3124NA 4 12 6 10 1 1 6 7 6 5 1 8 9 15 14 16 19 21 18 13 19 17 20 18 2 3B 3A ...
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Desa 24", 30" - page 37
www .desatech.com 1 13097-01C 37 P ARTS LIST V ARIABLE MANUALL Y -CONTROLLED SEASONAL OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 38 of this manual. KEY P ART NUMBER NO. CRL2718P A CRL2718NA CRL3124P A CRL3124NA DESCRIPTION QTY . 1 1 13551-0 ...
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Desa 24", 30" - page 38
www .desatech.com 1 13097-01C 38 REPLACEMENT P ARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty . P ARTS UNDER W ARRANTY Co nt act au th ori ze d dea le rs of thi s pro du ct . If th ey can ʼt supp ly ori ginal repl ac eme nt part (s) , con tac t your neare st Parts Centra l ...
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Desa 24", 30" - page 39
www .desatech.com 1 13097-01C 39 T ools & Equipment Co. 5 Manila A ve Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Portable Heater Parts 342 N. County Rd. 400 East V alparaiso, IN 46383-9704 219-462-7441 1-888-619-7060 www .portableheaterparts.com sales@portableheaterparts.com techservice@portableheaterparts.com FBD 1349 Adams Street Bowli ...
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Desa 24", 30" - page 40
Model Serial No. Date Purchased WARRANTY INFORMA TION KEEP THIS WARRANTY Always specify model and serial numbers when communicating with the factory . W e reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty . W e make no other warranty , expressed or implied. LIM ...
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