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Desa CDR3924NT manual

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Table of contents for the manual

  • Page 1

    Sav e this manual for future reference. For more information, visit www .desatech.com W ARNING: If the information in this manual is not fol- lowed exactly , a fire or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any[...]

  • Page 2

    www .desatech.com 1 13183-01B 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 ARNIN[...]

  • Page 3

    www .desatech.com 3 1 13183-01B SAFETY INFORMA TION W ARNING: This product c o n t a i n s a n d / o r g e n e r a t e s chemicals known to the State of California to cause cancer or birth defects, or other reproduc- tive harm. IMPORT ANT : Read this owner ’ s man ual caref ull y a nd compl ete ly before trying to assemble, op- erate, or service [...]

  • Page 4

    www .desatech.com 1 13183-01B 4 1. This appliance is only for use with the type of gas indica ted on the rating plate. This appl iance is not convertible for use with other gases. 2. Do not place propane/LP supply tank(s) in- side any structure. Locate propane/LP supply tank(s) outdoors. 3. If you smell gas • shut off gas supply • do not try to[...]

  • Page 5

    www .desatech.com 5 1 13183-01B PRODUCT IDENTIFICA TION Log Set Base Assembly Ignitor Burner Control Knob Figure 1 - Product Identification Grate UNP ACKING CA UTI ON: Do no t remove the data plates from the base as- sembly . The data plates contain important warranty and safety information. 1. Remove logs and heater base assembly from carton. Not[...]

  • Page 6

    www .desatech.com 1 13183-01B 6 Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air . Unusually tight construction is defined as construction where: a. walls and ceilings exp[...]

  • Page 7

    www .desatech.com 7 1 13183-01B A. Rework work she et, addin g the spac e of an adj oin- in g roo m. If the ex tr a spa ce pro vi de s an unc onfin ed space, remove door to adjoining room or add vent ilat ion gril ls be twee n ro oms. See V entilation Air Fr om Inside Building. B. V ent room directly to the outdoors. See V entila - tion Air Fr om [...]

  • Page 8

    www .desatech.com 1 13183-01B 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 heati ng syst em, yo u may run system’s circulating blower while using heat er . This will help cir cul[...]

  • Page 9

    www .desatech.com 9 1 13183-01B INST ALLA TION AND CLEARANCES FOR VENT -FREE OPERA TION W AR NI NG: Ma in ta in th e m in i- mu m cl ear an ces . If p oss ib le, pr o- v i d e gr ea t e r cl ea ra nc es fr om fl oo r , ce ili ng , a nd ad jo in ing w all . LOG SIZING REQUIREMENTS Log Minimum Firebox Size Height Depth Front Rear * Width Width 24&qu[...]

  • Page 10

    www .desatech.com 1 13183-01B 10 INST ALLA TION Continued Minimum Noncombustible Material 8" Min. 12" 15" 18" All minimum distances are in inches 20" 2 1 /2 " 6" 8" 10" 12" Distances to Underside of Mantel Hood (GA6050, GA6052 or GA6053) T op of Fireplace Opening Underside of Mantel Shelf Mantel She[...]

  • Page 11

    www .desatech.com 1 1 1 13183-01B INST ALLA TION Continued INST ALLING HEA TER BASE ASSEMBL Y W ARNING: Y ou must secure this heater to fireplace floor . If not, heater will move when you adjust controls. Moving heater may cause a gas leak. W AR NIN G: If ins tal lin g in a sun ken firep lace , sp eci al c are is n eed ed. Y ou m u st rai se th [...]

  • Page 12

    www .desatech.com 1 13183-01B 12 INST ALLA TION Continued CONNECTING TO GAS SUPPL Y W ARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator . W ARNING: A qualified ser- vic e perso n m ust co nne ct heat er to gas supply . Follow all local codes. C AU TIO N: F or p ro pa ne/ LP gas, neve [...]

  • Page 13

    www .desatech.com 13 1 13183-01B INST ALLA TION Continued W e recommend that you install a sediment trap in supp ly line as shown in Figu re 13. Locate sed imen t trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likel y to freeze. A sedime nt trap t[...]

  • Page 14

    www .desatech.com 1 13183-01B 14 INST ALLA TION Continued T est Pressures Equal T o or Less Than 1/2 PSIG (3.5 kPa) 1. Cl os e equi pme nt s hu to f f va lve ( se e Fi gu re 1 4). 2. Pr essu riz e su pply pip ing sys tem b y ei ther opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for na[...]

  • Page 15

    www .desatech.com 15 1 13183-01B ADDING LA V A ROCK Place lava rock around base of heater if desired. Be sure not to cover the control knobs or air inlet openings on the front of heater . INST ALLA TION Continued Figu re 18 - Ins tall ing Mid dle Log #1, Fro nt Log #2, Lef t Lo g #3 an d Ri ght Log #4 Figure 19 - Installing Rear Log #5 and Crossove[...]

  • Page 16

    www .desatech.com 1 13183-01B 16 OPERA TING HEA TER 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 these instruc[...]

  • Page 17

    www .desatech.com 17 1 13183-01B OPERA TING HEA TER Continued Figure 21 - Control Knob(s) and Ignitor Button Locations Ignitor Button Control Knob Rear Burner Control Knob Figure 22 - Pilot (Propane/LP) Pilot Burner Thermocouple Figure 23 - Pilot (Natural) Ignitor Electrode Pilot Burner Thermocouple 5. T urn contr ol knob counter clockwise to the P[...]

  • Page 18

    www .desatech.com 1 13183-01B 18 Pilot Burner Pilot Burner Pilot Burner Thermocouple INSPECTING B URNERS Check pilot flame pattern and burner flame pat- terns often. PILOT FLAME P A TTERN Figure 24 shows a correct pilot flame pattern. Figure 25 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. T[...]

  • Page 19

    www .desatech.com 19 1 13183-01B Access Hole for Cleaning Natural Pilot CLEANING AND MAINTENANCE W ARNING: T urn off heater and let cool before cleaning. CA UT IO N: Y o u m u st k ee p c o n - t r o l a r e a s , b ur ne rs , an d c ir cu la t i n g ai r pa ssa gew ays of he ate r cle a n. Inspec t these areas of heate r befo re e ach u se. Have h[...]

  • Page 20

    www .desatech.com 1 13183-01B 20 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. POS[...]

  • Page 21

    www .desatech.com 21 1 13183-01B TROUBLESHOO TING Continued POSSIBLE CAUSE 1. Co nt ro l kn ob no t fu ll y pres sed i n 2. Control knob not pressed in long enough 3. Safety interlock system has been triggered 4. Equipment shutoff valve not fully open 5 . Pilot flame not touching thermocouple, which allows thermocouple to cool, caus- ing pilot fla[...]

  • Page 22

    www .desatech.com 1 13183-01B 22 TROUBLESHOO TING Continued POSSIBLE CAUSE 1. Re sidu es from manufac turi ng processes and logs curing 1. Turning control knob to HI position when burners are cold 2. Air in gas line 3. Air passageways on heater blocked 4 . Dirty or partially clogged burner orifice(s) 1. When heated, vapors from furniture polish, w[...]

  • Page 23

    www .desatech.com 23 1 13183-01B 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 you cannot reach your gas [...]

  • Page 24

    www .desatech.com 1 13183-01B 24 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[...]

  • Page 25

    www .desatech.com 25 1 13183-01B SPECIFICA TIONS CDR3 924P T CDR392 4NT Bt u (V ari abl e) 1 1,0 00 /39, 000 1 1, 00 0/3 9,0 00 T ype Gas P ropa ne/L P Natu ral Igni tio n Elec tro nic Elec tro nic Mani fol d Pr essu re 8.0" W .C. 3.6" W . C. Inle t G as P ress ure (in . of wat er) Maxim um 14" 10.5 " Minim um* 1 1" 5"[...]

  • Page 26

    www .desatech.com 1 13183-01B 26 ILL USTRA TED P ARTS BREAKDOWN MODELS CDR3924PT AND CDR3924NT 4 7 6 27 27 8 26 10 23 19 20 29 28 32 31 33 30 14 15 9 13 5 25 21 1 16 17 2 12 24 3 1 1 22 18[...]

  • Page 27

    www .desatech.com 27 1 13183-01B P ARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. KEY P ART NUMBER NO. CDR3924NT CDR3924PT DESCRIPTION QTY . 1 ** ** Dual Ramp Base 1 2 1 1 1331-16 1 13473-01 Re ar B urne r T ub e 1 3 1 13474-[...]

  • Page 28

    113183 01 2701 Industrial Drive P .O. Box 90004 Bowling Green, KY 42102-9004 www .desatech.com 1 13183-01 Rev . B 08/04 NOT A UPC WARRANTY INFORMA TION KEEP THIS WARRANTY Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory . W e reserve the right to amend these specifications at any time with[...]