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Desa VM36P(B,H) manual

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Table of contents for the manual

  • Page 1

    For more information, visit www .desatech.com NA TURAL GAS MODELS M36(B,H), M42(B ,H), VM36(B,H) AND VM42(B,H) PROP ANE/LP GAS MODELS M36P(B,H), M42P(B ,H), VM36P(B,H) AND VM42P(B ,H) B-VENT DECORA TIVE GAS FIREPLACE OWNER’S OPERA TION AND INST ALLA TION MANU AL FOR YOUR SAFETY — Do not store or use gasoline or any ot[...]

  • Page 2

    www .desatech.com 108795-01V 2  W ARNING: Improper installation, adjustment, al - teration, service or maintenance can cause injury or property damage. Refer to this manual for correct in - stallation and operational procedures. For assistance or additional information consult?[...]

  • Page 3

    www .desatech.com 108795-01V 3 SAFETY 1. This appl ianc e is only for use with the typ e of gas indica ted on the rati ng pla te. This appl ian ce is n ot con ver tibl e for use wit h other gases unless a certied kit is used. 2. For propane/LP replace, do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply tank([...]

  • Page 4

    www .desatech.com 108795-01V 4 1 1. K ee p t he a r ea a r ou n d yo u r fi r ep la c e clear of combustible materials, gasoline and other ammable vapor and liquids. Do not run fireplace where these are used or stored. Do not place items such as clothing or decorations on or around replace. 12. Do not use this replace to cook food or burn [...]

  • Page 5

    www .desatech.com 108795-01V 5 The insta llat ion must confo rm with local codes or , in the absence of local codes, with the cur - rent National Fuel Gas Code, ANSI Z223.1/ NFP A 54 . This appliance complies with ANSI Z21.50/CSA 2.22 . W ARNING: Installation of this appliance should be done by a qualied service person[...]

  • Page 6

    www .desatech.com 108795-01V 6 PRODUCT SPECIFICA TIONS GAS RA TING - NA TURAL M36(B,H),VM36(B,H) M42(B,H),VM42(B,H) Max. Input Rating: 40,000 Btu/Hr 45,000 Btu/Hr Manifold Pressure: 3.5" WC (.87 kPa) 3.5" WC (.87 kPa) Minimum Supply Pressure: 4.5" WC (1.12 kPa) 4.5" WC (1.12 kPa) Maximum Supply Pressure: 10.5" WC (2.6[...]

  • Page 7

    www .desatech.com 108795-01V 7 PRE-INST ALLA TION PREP ARA TION Figure 3 - Minimum Clearances (T op V iew) 0" 0" Clearance Nailing Flange Front Face Left Side Surround Back Drywall 2 x 4 Stud Figure 4 - Minimum Clearances (Front V iew) * * * * 42" (106.7 cm) Min. Clearance from Opening to Ceiling 0" Clearance Ceiling 1" (2.[...]

  • Page 8

    www .desatech.com 108795-01V 8 PRE-INST ALLA TION PREP ARA TION Continued FRAMING 1. Frame appliance enclosure as illustrated in Figures 7 and 8. Note: If a wall covering is used to line the enclosure, then all measurements must be from the surface of the covering. 2. Place the appliance into the framing and secure it. Note: If appliance is to be r[...]

  • Page 9

    www .desatech.com 108795-01V 9 INST ALLING TRANSITION PIPE AND ST ARTER COLLAR The transition pipe and starter collar shown in Figure 9 are supplied with the replace, unattached and ready for installation. Re - move starter collar and set aside. Slide transition pipe over vent collar and attach with a minimum of three screws. Replace starter col[...]

  • Page 10

    www .desatech.com 108795-01V 10 Maintain Listed Clearance Maintain Listed Clearance 12' Min. 12' Min. 45° 45° 6' 8' 12' Min. 60° 45° Position Firestop Position Firestop Position Firestop Listed Ve nt Cap Listed Ve nt Cap Listed Ve nt Cap Maintain Listed Clearance Maintain Listed Clearance Maintain Listed Clearance Maint[...]

  • Page 11

    www .desatech.com 108795-01V 11 CHECKING FOR PROPER VENTING After completing and checking electrical, gas and vent connections, follow the lighting instructions and allow main burner to run for approximately 5 minutes. Hold a lighted match or cigarette near the top edge of re - place opening and play it along entire length of opening (see Figure[...]

  • Page 12

    www .desatech.com 108795-01V 12 Conduit Sleeve T o Safety Circuit Route Millivolt Through Gas Line T o T hermopile Wires (Supplied) W a ll Switch (Not Supplied) (Back View) IN TH TP THTP IN OU T O F F P I L O T O N Note: If any of the original wire as supplied must be replaced, use 1 8 AWG TYP E CL 2 (U L) 105 C (25 ft. length MAXIMUM) or equivalen[...]

  • Page 13

    www .desatech.com 108795-01V 13 GAS LINE HOOK-UP  W ARNING: Gas line hookup should be done by your gas supplier or a qualied service person. W ARNING: Before you pro- cee d, make  sur e your gas supp ly is OFF . A manual shutoff valve has been included in the appliance’s gas sup[...]

  • Page 14

    www .desatech.com 108795-01V 14 P I L O T ON OFF IN OUT Figure 21 - Connecting Flexible Gas Line to Millivolt V alve Gas Shutoff V alve Flexible Gas Line Do NOT Kink 1/2" NPT Incoming Gas Line Note: 1) Wire Connections Not Shown for Clarity 2) * 1/8" NPT Plugged T apping Red Surface Indicates For Propane/LP Use Only Pilot Adj Inlet Pressu[...]

  • Page 15

    www .desatech.com 108795-01V 15 0.5" 0.5" Figure 24 - Pan and Ember Material Clearances Grate Burner Pan Pan and Ember Material INST ALLA TION Continued LOGPLACEMENTFORM36,M36P , VM36 AND VM36P MODELS 1. Place small front right log (log 1) on right front of grate as shown in Figure 25. 2. Place large back log (log 2) onto g[...]

  • Page 16

    www .desatech.com 108795-01V 16 INST ALLA TION Continued LOGPLACEMENTFORM42,M42P , VM42 AND VM42P MODELS 1. Place large back log (log 1) onto grate making sure notches rest over grate (see Figure 29). 2. Insert lower end of log 2A between rst two grate ngers and position upper end into notch on front of log 1. See Figure 29. Pl[...]

  • Page 17

    www .desatech.com 108795-01V 17 INST ALLA TION Continued COMBUSTION AIR KIT MODEL AK4 (OPTIONAL) The outside air kit may be installed on the left sid e of repla ce onl y . The vent can be inst all ed through any outside wall a minimum of three feet below fireplace termination cap. The handle to operate damper door for outside air inlet will be l[...]

  • Page 18

    www .desatech.com 108795-01V 18 6. Repeat the process for the opposite door assembly . 7. T o adjust doors, slide them partially open. Using a screwdriver , loosen hold-down screws in the spring clip (see Figure 36) and pivot plate. 8. Close both doors until evenly joined at the middle and note the gap at outer edges of face. 9. Reopen one door at [...]

  • Page 19

    www .desatech.com 108795-01V 19 OPERA TION 1. STOP! Read the safety information, col - umn 1. 2. T urn wall switch to the OFF position. 3. T urn off all electric power to appliance. 4. Fully open glass doors if installed. 5. Remove front refractory brick access panel. 6. T urn gas control knob clockwise to the OFF position (see Figure 39). 7. W ait[...]

  • Page 20

    www .desatech.com 108795-01V 20 TO TURN OFF GAS TO APPLIANCE 1. T urn off wall switch. 2. T urn off all electric power to appliance if service is to be performed. 3. Fully open glass doors if installed. 4. Remove front hearth brick and control access panel. 5. T urn gas control knob clockwise to OFF . Do not force. 6. Replace front refractory brick[...]

  • Page 21

    www .desatech.com 108795-01V 21 INSPECTING B URNERS Continued BURNER FLAME P A TTERN Burner ames will be steady , not lifting or oat - ing. Flames should go up through the middle of logset. Flames should not "spill" to edges of pan or sides of logset. Thermopile Pilot Burner Ignitor Figure 42 - Correct Pilot Flame Pattern Figure 43 [...]

  • Page 22

    www .desatech.com 108795-01V 22 DO NO T CONNECT RED REPLACE F A CTOR Y WIRING WITH 105°C EQUI V A LENT OR HIGHER RA TING THERMOST A T WIRE 18 GA. RED/WHITE EXTERNA L WIRING USE ON L Y CLASS 2 N.C.SW (VEN T SAFET Y SHUTOFF SWITCH) WHITE TH/TP TP TH WA LL SWITCH (NOT SUPPLIED) MANUA L DAMPER SWITCH N.O. SW TO 120V THERMOPILE PIL O T BURNER IGNITOR L[...]

  • Page 23

    www .desatech.com 108795-01V 23 TROUBLESHOO TING Note: Before troubleshooting the system, make sure the gas shutoff valve is ON. The two most common causes of a malfunctioning gas appliance are: 1. Loose wiring connections 2. Construction debris clogging pilot and/or gas control valve lter OBSERVED PROBLEM Pilot will not light Pilot will not sta[...]

  • Page 24

    www .desatech.com 108795-01V 24 TROUBLESHOO TING Continued OBSERVED PROBLEM Pilot goes out when wall switch is ON Spark ignitor will not light pilot after repeated triggering of red button Fireplace produces a clicking/ ticking noise just after burner is lit or shut off POSSIBLE CAUSE 1. Millivolt output on thermo- pile too high 1. Defective ignito[...]

  • Page 25

    www .desatech.com 108795-01V 25 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 [...]

  • Page 26

    www .desatech.com 108795-01V 26 P ARTS MODELS M36(B,H),M36P(B,H),M42(B,H),M42P(B,H),VM36(B,H),VM36P(B,H), VM42(B,H) ANDVM42P(B,H) 43 21 1 10 1 1 6 8 8 22 25 13 4 14 45 17 3 44 40 39 41 42 9 7 46 19 47 7 47 20 5 16 12 15 25 33 31 28 32 27 1 1 24 18 38 37 35 34 30 2 34 35 2 29 26 36 NG LP[...]

  • Page 27

    www .desatech.com 108795-01V 27 P ARTS This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. KEY NO. M36(B,H) VM36(B,H) M42(B,H) VM42(B,H) DESCRIPTION QTY 1 14153 14153 Micro Switch 1 2 111 6 5 111 6 5 Screw , #10 x 5/8 Mod. T r . Blk. Ox 2 3[...]

  • Page 28

    www .desatech.com 108795-01V 28 KEY NO. M36(B,H) VM36(B,H) M42(B,H) VM42(B,H) DESCRIPTION QTY 12 106658-02 107812-02 Left Refractory , Std. Brick (M36B/M42B) 1 108164-02 108169-02 Left Refractory , Herringbone (M36H/M42H) 1 106658-01 107812-01 Left Refractory , Std. Brick (VM36B/VM42B) 1 108164-01 108169-01 Left Refractory , Herringbone (VM36[...]

  • Page 29

    www .desatech.com 108795-01V 29 P ARTS LOGSETS FOR MODELS M36(B,H),M36P(B,H),VM36(B,H) ANDVM36P(B,H) KEY NO. P ART NUMBER DESCRIPTION QTY . - 107999-01 Log Set 1 108724-01 Right Front 9" Split Log 1 2 901098-01 Rear Log 1 3 108720-01 T op Right Log - 1 1 3 / 4 " 1 4 108721-01 T op Right Log - 16" 1 5 108722-01 T op Left L[...]

  • Page 30

    www .desatech.com 108795-01V 30 KEY NO. P ART NUMBER DESCRIPTION QTY . - 107999-02 Log Set 1 901098-02 Rear Log 1 2A 108723-01 Left Front Log - 1 1" 1 2B 108839-01 Right Front Log - 15 3 / 4 " Round 1 3 108722-01 T op Left Log - 13 1 / 2 " Y -Log 1 4 108838-01 Inside T op Left Log - 15 3 / 4 " Split 1 5 108721-01 Inside T op Rig[...]

  • Page 31

    www .desatech.com 108795-01V 31 ACCESSORIES NOTICE:  Allaccessoriesmaynotbeavailableforallreplacemodels. Purc has e th ese access ori es f rom your local dealer . If th ey can not sup ply the se a cces sori es call DESA Heati ng, LLC at 1-866- 672- 604 0 for info rmat ion . Y ou can also write to the addre ss listed[...]

  • Page 32

    108795 01 108795-01 Rev . V 08/08 NOT A UPC DESA Heating, LLC 2701 Industrial Drive Bowling Green, KY 42101 www .desatech.com 1-866-672-6040 WARRANTY KEEP THIS WARRANTY Model ( located on product or identication tag ) _____________________________ Serial No. ( located on product or identication tag ) __________________________ Date Purchased [...]