Instruction/ maintenance manual of the product HRB3624 Desa
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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.
www .desatech.com 1 19426-01A 2 SAFETy INFORMA TION T AbLE OF CONTENTS Safety Information ............................................... 2 Product Identication ........................................... 5 Local Codes..............................
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.
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.
www .desatech.com 1 19426-01A 5 PRODUCT IDENTIFICA TION Figure 1 - Product Identication Base Assembly Control Knob Ignitor Model VUL Series Logs Control Knob Base Assembly Ignitor Rear Burner Flame.
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 .
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).
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 .
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 M.
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 .
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.
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.
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.
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 qualied ser - vic e pers on must conn ect heate r to gas supply .
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).
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.
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.
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 specically approved with this heater may result in property damage or personal injury . Each log is marked with a number .
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.
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.
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 .
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.
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.
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.
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.
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.
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 .
www .desatech.com 1 19426-01A 28 TROUbLESHOO TING W ARNING: T urn off heater and let cool before servicing. Only a qualied 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.
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.
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 orice(s) 1 .
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.
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 p.
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 .
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 13621-0.
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 .
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.
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.
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 .
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.
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 HRB3.
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.
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 specied 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.
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 .
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 specications at any time without notice.
An important point after buying a device Desa HRB3624 (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 HRB3624 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 HRB3624 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa HRB3624 you will learn all the available features of the product, as well as information on its operation. The information that you get Desa HRB3624 will certainly help you make a decision on the purchase.
If you already are a holder of Desa HRB3624, 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 HRB3624.
However, one of the most important roles played by the user manual is to help in solving problems with Desa HRB3624. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa HRB3624 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
