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Desa HRB3930/3924 manual

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Table of contents for the manual

  • Page 1

    For more information, visit www .desatech.com W ARNING: If the information in this manual is not fol- lowed exactly , a re or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance. — WHA T TO DO IF YOU[...]

  • Page 2

    www .desatech.com 1 19426-01A 2 SAFETy INFORMA TION T AbLE OF CONTENTS Safety Information ............................................... 2 Product Identication ........................................... 5 Local Codes......................................................... 5 Optional Remote Control Accessories ................. 5 Unpacking....[...]

  • Page 3

    www .desatech.com 1 19426-01A 3 WA RNIN G: Th is p rodu ct co n - ta ins an d/o r ge ne ra tes c hem ica ls kno wn t o t he state of California to cause cancer or birth defects or other reproductive harm. IMPORT ANT : Read this owner ’s man ual caref ully and co mple tely before trying to assemble, op - erate or service this replace. Improper [...]

  • Page 4

    www .desatech.com 1 19426-01A 4 SAFETy INFORMA TION Continued 1. This appliance is only for use with the type of gas indica ted on the rating plate. This appli ance 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 (propane/LP units only). 3. If [...]

  • Page 5

    www .desatech.com 1 19426-01A 5 PRODUCT IDENTIFICA TION Figure 1 - Product Identication Base Assembly Control Knob Ignitor Model VUL Series Logs Control Knob Base Assembly Ignitor Rear Burner Flame Adjustment Knob Remote Control (Optional) OPTIONAL REMO TE CONTROL A CCESSORIES There are four optional remote controls that can be purchased separat[...]

  • Page 6

    www .desatech.com 1 19426-01A 6 AIR FOR COMb USTION AND VENTILA TION W ARNING: This heater shall no t b e in st al led i n a c on ne d spac e or unusua lly tigh t constr uc - tion unless provisions are provid - ed for adequate combustion and ventilation air . Read the following ins truc tion s to insu re prop er fresh air for this and other fuel[...]

  • Page 7

    www .desatech.com 1 19426-01A 7 AIR FOR COMb USTION AND VENTILA TION Continued Space: Includes the room in which you will install replace plus any adjoining rooms with doorless pas - sageways or ventilation grills between the rooms. 1. Dete rmine the volum e of the sp ace ( leng th x width x height). Length x Width x Height =__________cu. ft. (v[...]

  • Page 8

    www .desatech.com 1 19426-01A 8 AIR FOR COMb USTION AND VENTILA TION Continued V entilation Air From Outdoors Prov ide extra fresh air by usin g ventil ation grills or ducts. Y ou must provide two permanent openings: one within 12" of the ceiling and one within 12" of the oor . Connect these items directly to the outdoors or spaces ope[...]

  • Page 9

    www .desatech.com 1 19426-01A 9 MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MA TERIALS Log Size 18", 24", 30" Side W all 16" Ceiling 42" Floor 5" LOG SIZING REQUIREMENTS Minimum Firebox Size Log Front Rear* Size Height Depth Width Width 18" 17" 14" 20" 14" 24" 17" 14" 26" 18&[...]

  • Page 10

    www .desatech.com 1 19426-01A 10 INST ALLA TION Continued NOT ICE : Ma nua l c ontr ol heat ers ma y be used as a ven ted pro duct . If so, you must alway s run hea ter wit h chi mney ue damp er open. If run ning heate r with dam per ope n, nonc ombu sti ble mate ria l abo ve rep lac e openi ng is not nee ded . Go to Ins tal ling Damp er Clam[...]

  • Page 11

    www .desatech.com 1 19426-01A 1 1 INST ALLA TION Continued NOT ICE : Sur face temp era ture s of adj ace nt wal ls and man tel s be - co me ho t dur in g ope ra tio n. Wal ls and mante ls abov e the re box may bec ome hot to the touch . If inst alle d pr oper ly, the se tem - per atu res me et th e req uire men t of the natio nal produ ct stan d[...]

  • Page 12

    www .desatech.com 1 19426-01A 12 INST ALLA TION Continued INST ALLING DAMPER CLAMP ACCESSOR Y FOR VENTED OPERA TION Note: When used as a vented heater, appliance must be installed only in a solid-fuel burning replace with a working ue and constructed of noncombustible material. If your heater is a manually-cont rolled model, you may use this [...]

  • Page 13

    www .desatech.com 1 19426-01A 13 INST ALLA TION Continued IMPORT ANT : Make sure the heater burners are level. If heater is not level, heater will not work properly . For thermostat models, avoid damage to thermostat bulb. A void nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting bracket until ready to mount base to o[...]

  • Page 14

    www .desatech.com 1 19426-01A 14 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 qualied ser - vic e pers on must conn ect heate r to gas supply . Follow all local codes. CAUTION: Never connect propane/LP replace directly to the propane[...]

  • Page 15

    www .desatech.com 1 19426-01A 15 Pipe Cap T ee Nipple Joint INST ALLA TION Continued Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figures 15 or 16, depending on your model). IMPORT ANT : Install equipment shuto[...]

  • Page 16

    www .desatech.com 1 19426-01A 16 CHECKING GAS CONNECTIONS W ARN ING: T est all gas pipi ng and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. W AR NIN G: Ne ve r u se an open ame to check for a leak. App ly a nonc orr osi ve leak dete c - tion uid to all joints. Bubbles forming [...]

  • Page 17

    www .desatech.com 1 19426-01A 17 INST ALLA TION Continued Figure 18 - Checking Gas Joints (Propane/LP Only) Thermostat Gas V alve or Control V alve Location Propane/LP Supply T ank Equipment Shutoff V alve Gas Meter Figure 19 - Checking Gas Joints (Natural Gas Only) Thermostat Gas V alve or Control V alve Location Equipment Shutoff V alve INST ALLI[...]

  • Page 18

    www .desatech.com 1 19426-01A 18 INST ALLING LOGS W ARNING: Failure to posi - tion the parts in accordance with these diagrams or failure to use only parts specically approved with this heater may result in property damage or personal injury . Each log is marked with a number . These numbers will help you identify the log when installing. It is [...]

  • Page 19

    www .desatech.com 1 19426-01A 19 INST ALLA TION Continued Rear Log Grate Prongs Figu re 2 5 - Installing VUL Model Log Sets Not e: Y our appli ance may vary from mode l sho wn but log placement will be the same. Bottom Log Base Assembly Front Right Log Front Left Log 6. Place middle left log over front left and bottom logs as show in Figure 26. Be [...]

  • Page 20

    www .desatech.com 1 19426-01A 20 OPERA TING HEA TER THERMOST A T -CONTROLLED MODELS FOR YOUR SAFETY READ BEFORE LIGHTING W ARNING: If you do not fol- low these instructions exactly , a re 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[...]

  • Page 21

    www .desatech.com 1 19426-01A 21 5. T urn cont ro l kno b cou nter clockw ise to the PILOT position. Press in control knob for ve (5) seconds (see Figur e 28). Note: Y ou may be running this heater for the rst 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 air[...]

  • Page 22

    www .desatech.com 1 19426-01A 22 LIGHTING INSTRUCTIONS W ARNING: • If replace has glass doors, never operate this heater with glass doors closed. If you op - era te heate r with door s clos ed, heat buildup inside replace will cause glass to burst. Make sure there are no obstructions across openings of replace. • Y ou must operate this[...]

  • Page 23

    www .desatech.com 1 19426-01A 23 5. Wait ve (5) minutes to clear out any gas. Then smell for gas, including near the oor . If you smell gas, STOP! Follow “B” in the safety information, column 1, page 22. If you don’t smell gas, go to the next step. 6. Press in and turn control knob counter- clockw ise to t he PILO T p osition. Press in [...]

  • Page 24

    www .desatech.com 1 19426-01A 24 OPERA TING HEA TER Continued MANUAL LIGHTING PROCEDURE 1. Follow steps 1 through 6 under Lighting Instructions , pages 22 and 23. 2. Depress control knob and light pilot with match. 3. Keep contr ol knob pres sed in for 30 seco nds afte r lighti ng pilo t. After 30 seco nds, rel ease control knob. Now follow steps 9[...]

  • Page 25

    www .desatech.com 1 19426-01A 25 Manual Mode 1. Pr es s th e PO WER a nd LO CK bu tt on s t og et he r to t ur n o n t he han d- hel d r emo te con tro l. 2. P res s th e M AN U but to n to tu rn o n the replace. 3. Press the POWER and LOCK buttons together to turn off the r eplace. Auto (Thermostatic) Mode 1. Pr es s th e PO WER a nd LO CK b[...]

  • Page 26

    www .desatech.com 1 19426-01A 26 FRONT BURNER FLAME P A TTERN Figure 38 shows correct front burner ame pat - tern. Figure 39 shows incorrect front burner ame pattern. The incorrect burner ame pattern shows yellow tipping at top of blue ame. W ARNING: If yellow tipping occurs, your heater could pro - duce increased levels of carbon monox[...]

  • Page 27

    www .desatech.com 1 19426-01A 27 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 soft cloth or vacuum cleaner nozzle. 5. Blow air into the primary air holes on the injector holder . 6. In ca se any lar ge clu mps of dus t have now bee n push ed i nto the b u[...]

  • Page 28

    www .desatech.com 1 19426-01A 28 TROUbLESHOO TING W ARNING: T urn off heater and let cool before servicing. Only a qualied 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[...]

  • Page 29

    www .desatech.com 1 19426-01A 29 POSSIBLE CAUSE 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Safety interlock system has been triggered 4. Equipment shutoff valve not fully open 5. Pilot ame not touching ther - mocouple, which allows ther - mocouple to cool, causing pilot flame to go out. This problem could [...]

  • Page 30

    www .desatech.com 1 19426-01A 30 POSSIBLE CAUSE 1. Residues from manufacturing 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 orice(s) 1 . When heated, vapors from furniture polish, wax, carpet cleaners, etc. may [...]

  • Page 31

    www .desatech.com 1 19426-01A 31 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. • [...]

  • Page 32

    www .desatech.com 1 19426-01A 32 OPTIONAL POSITIONING OF THERMOST A T SENSING b ULb (Thermostat-Controlled Models Only) 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 thermosta[...]

  • Page 33

    www .desatech.com 1 19426-01A 33 Figure 48 - Positioning the Thermostat Sensing Bulb in the V ertical Position with the Capillary at the Bottom Capillary Thermostat Sensing Bulb Do Not Crimp Capillary Adhesive- backed Mounting Clip 4. The mounting clip must be a minimum of 3" from bottom of replace to prevent crimping of capillary . Once yo[...]

  • Page 34

    www .desatech.com 1 19426-01A 34 1 2 3 4 5 6 KEY NO. P ART NUMBER DESCRIPTION QTY VUL18NT VUL18PT VUL18NR VUL18PR VUL24NT VUL24PT VUL24NR VUL24PR VUL30NT VUL30PT VUL30NR VUL30PR 1 1 13621-01 1 13621-07 1 13621-13 Front Right Log (#1) 1 2 1 13621-02 1 13621-08 1 13621-14 Front Left Log (#1) 1 3 1 13621-03 1 13621-09 1 13621-15 Middle Right Log (#2) [...]

  • Page 35

    www .desatech.com 1 19426-01A 35 ILL USTRA TED P ARTS bREAkDOWN AND P AR TS LIST LOG MODELS CRB 2618 NR, CRB2 618P R, C RB3 624N R, C RB36 24PR , CR B363 0NR, CRB3630PR, HRB3624NT , HRB3624PT , HRB3624NR AND HRB3624PR This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Par[...]

  • Page 36

    www .desatech.com 1 19426-01A 36 ILL USTRA TED P ARTS bREAkDOWN THERMOST A T -CONTROLLED MODELS VUL18NT , VUL18PT , VUL24NT , VUL24PT , VUL30NT , VUL30PT , HRB3624NT AND HRB3624PT L P G 1 1 10 4 1 8 3 12 8 2 5 6 7 24 25 21 2 23 22 15 13 16 9 8 8 19 17 20 18 14[...]

  • Page 37

    www .desatech.com 1 19426-01A 37 P ARTS LIST THERMOST A T -CONTROLLED MODELS This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. KEY NO. P ART NO. DESCRIPTION QTY . 1 ** Ramp Burner Base • • • • • • 1 2 1 1 1435-01 Electronic Ig[...]

  • Page 38

    www .desatech.com 1 19426-01A 38 ILL USTRA TED P ARTS bREAkDOWN REMOTE-READY V ARIABLE CONTROL MODELS VUL 18NR , VU L18P R, V UL24 NR, VUL 24PR , VU L30N R, V UL30 PR L P G 5 6 21 14 22 14 23 24 2 19 20 16 1 18 17 10 1 1 4 3 8 8 12 14 13 7 15 9 8[...]

  • Page 39

    www .desatech.com 1 19426-01A 39 P ARTS LIST REMOTE-READY V ARIABLE CONTROL MODELS This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. KEY NO. P ART NO. DESCRIPTION QTY . 1 ** Ramp Burner Base • • • • 1 2 1 1 1435-01 Electronic Igni[...]

  • Page 40

    www .desatech.com 1 19426-01A 40 ILL USTRA TED P ARTS bREAkDOWN REMOTE-READY V ARIABLE CONTROL MODELS CRB 2618 NR, CRB2 618P R, C RB3 624N R, C RB36 24PR , CR B363 0NR, CRB 3630 PR, HRB3624NR AND HRB3624PR L P G 5 6 21 14 22 14 23 24 2 19 20 16 1 18 17 10 1 1 4 3 8 8 12 14 13 7 15 9 8[...]

  • Page 41

    www .desatech.com 1 19426-01A 41 P ARTS LIST REMOTE-READY V ARIABLE CONTROL MODELS This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. KEY NO. P ART NO. DESCRIPTION QTY . 1 ** Ramp Burner Assembly • • • • 1 2 1 1 1435-01 Electronic [...]

  • Page 42

    www .desatech.com 1 19426-01A 42 SERVICE HINTS When Gas Pressure Is T oo Low • pilot will not stay lit • burners will have delayed ignition • heater will not produce specied heat • propane/LP gas supply may be low Yo u ma y fee l yo ur gas pre ss ur e is too lo w. If so, co n - ta ct y our lo cal pr op ane /LP or na tur al ga s s upp lie[...]

  • Page 43

    www .desatech.com 1 19426-01A 43 RECEIVER AND HAND-HELD THERMOST A T REMOTE CONTROL KIT - HRC200 For all Remote-Ready Models. Allows the re - place to be operated in a manually or thermostati - cally controlled mode. Y ou can turn the replace on and off without ever leaving the comfort of your easy chair . A wall-mount docking station is incl[...]

  • Page 44

    2701 Industrial Drive P .O. Box 90004 Bowling Green, KY 42102-9004 www .desatech.com 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 specications at any time without notice. The only warranty appli[...]