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Desa VMH26TNB manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. OWNER’S OPERA TION AND INST ALLA TION MANUAL VENT -FREE NA TURAL GAS COMP ACT CLASSIC HEAR TH ® FIREPLACE ® Shown with Optional Cabinet Mantel/Hearth Base Accessory 14,000 to 26,000 Btu/Hr with Thermostat VMH26TNB WARNING: If the information in this manual is not followed exactly, a fire or explosion may r[...]

  • Page 2

    2 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® DANGER: Carbon monoxide poisoning may lead to death! SAFETY INFORMA TION Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the fireplace may not be working properly. Get fresh air at once! Have f[...]

  • Page 3

    3 107029 OWNER’S MANUAL PRODUCT IDENTIFICA TION LOCAL CODES Install and use fireplace with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223.1/NFPA 54 . *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection As[...]

  • Page 4

    4 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® WARNING: Always have branch support and screen in place before operating fireplace. This prevents excessive tempera- tures on fireplace surfaces. ASSEMBL Y WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this fire[...]

  • Page 5

    5 107029 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months,[...]

  • Page 6

    6 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® AIR FOR COMBUSTION AND VENTILA TION Continued WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in t[...]

  • Page 7

    7 107029 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Continued Figure 6 - Ventilation Air from Outdoors Shown with Optional Mantel Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two per- manent openings: one within 12" of the ceiling and one within 12" of the floor. Co[...]

  • Page 8

    8 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® WARNING: A qualified ser- vice person must install fireplace. Follow all local codes. You can recess firebox into the wall. You can also position fireplace in the optional cabinet or corner mantels. IMPORTANT: Only use optional cabinet or corner mantels specified in this manual. Purchase the o[...]

  • Page 9

    9 107029 OWNER’S MANUAL INST ALLA TION Continued 36 5 / 8 " 25 7 / 8 " 51 3 / 4 " 26 7 / 8 " Figure 10 - Rough Opening for Installing in Corner 2. If installing GA3450T blower acces- sory , do so at this time. Follow instruc- tions included with blower accessory . Note: If not installing blower acces- sory , you may wish to ru[...]

  • Page 10

    10 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® 13" 16" 19" 21" 2 1 / 2 " 6" 8" 10" Note: All vertical measurements are from top of fireplace opening to bottom of mantel shelf. All measurements are in inches. INST ALLA TION Continued Figure 13 - Attaching Brass Trim to Fireplace OPTIONAL MANTEL INSTA[...]

  • Page 11

    11 107029 OWNER’S MANUAL Assembling Brass Trim (Brass trim shipped with mantel) 1. Remove packaging from three remain- ing pieces of brass trim. 2. Locate two adjusting plates with set screws, and two shims in the hardware packet. 3. Align shim under adjusting plate as shown in Figure 15. 4. Slide one end of adjusting plate/shim in slot on mitere[...]

  • Page 12

    12 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® 4. Carefully disconnect green and white wires at their insulated connectors. 5. In top of the heater cabinet, locate the four mounting holes on the outer cas- ing. Align these four holes with those on the blower bracket assembly . Attach blower bracket assembly to the outer casing with 4 #10 [...]

  • Page 13

    13 107029 OWNER’S MANUAL 3 2 1 For Built-In Installation WARNING: A licensed elec- trician must connect the wiring harness to electrical supply fol- lowing all local codes. Electri- cian must provide a clamp on the box cover to secure the wir- ing. Wiring should be routed through the bushing in the hole on the outer casing of heater. Figure 21 - [...]

  • Page 14

    14 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® CONNECTING TO GAS SUPPLY WARNING: A qualified ser- vice person must connect fire- place to gas supply. Follow all local codes. IMPORTANT: Check gas line pressure be- fore connecting fireplace to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is hi[...]

  • Page 15

    15 107029 OWNER’S MANUAL INST ALLA TION Continued Figure 24 - Removing Branch Support From Fireplace CONNECTING EQUIPMENT SHUTOFF VALVE TO HEATER CONTROL Installation Items Needed • Phillips screwdriver • sealant (resistant to propane/LP gas, not provided) 1. Remove fireplace screen. Remove two screws that hold fireplace screen in place for s[...]

  • Page 16

    16 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® O N POSI T O PO Open Closed Equipment Shutoff Valve Figure 26 - Equipment Shutoff Valve Gas Meter Figure 27 - Checking Gas Joints Equipment Shutoff Valve INST ALLA TION Continued WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at onc[...]

  • Page 17

    17 107029 OWNER’S MANUAL OPERA TING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life. LIGHTING INSTRUCTIONS 1. STOP! Read the safety inf ormation, column 1. 2. Make sure equipment shutoff valve is ful[...]

  • Page 18

    18 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® TO TURN OFF GAS TO APPLIANCE 1. Follow steps 1 thr ough 5 under Light- ing Instructions , page 17. 2. With control knob pr essed in, strik e match. Hold match to pilot until pi- lot lights. 3. Keep control knob pr essed in for 30 seconds after lighting pilot. After 30 seconds, release contr o[...]

  • Page 19

    19 107029 OWNER’S MANUAL BURNER FLAME PATTERN Figure 33 shows a correct burner flame pattern. Figure 34 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tip- ping. The flame should not be dark or have an orange/reddish tinge. Note: When using the fireplace the first time, the flame will b[...]

  • Page 20

    20 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® TROUBLESHOOTING POSSIBLE CAUSE 1. Ignitor cable pinched or wet 2. Ignitor electrode not connected to igni- tor cable 3. Broken ignitor cable 4. Bad piezo ignitor 5. Ignitor electrode broken 6. Ignitor electrode positioned wrong 1 . Gas supply turned off or equipment shutoff valve closed 2. Co[...]

  • Page 21

    21 107029 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Fireplace produces a whistling noise when burner is lit White powder residue forming within burner box or on adjac[...]

  • Page 22

    22 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® TROUBLESHOOTING Continued WARNING: 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. Follow the gas supplier ’ s [...]

  • Page 23

    23 107029 OWNER’S MANUAL REPLACEMENT PA R T S Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s) call DESA International’s Technical Service Department at 1-866-[...]

  • Page 24

    24 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® ILLUSTRA TED PAR TS BREAKDOWN VMH26TNB 23 29 40 32 36 38 13 7 8 33 40 11 10 4 7 30 1 3 2 9 17 19 6 22 31 21 41 26 42 39 39 16 15 18 24 28 5 34 25 27 20 4 35 12 24 14 25 14 40 3 37 12[...]

  • Page 25

    25 107029 OWNER’S MANUAL P ARTS LIST VMH26TNB This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. KEY NO. PART NO. DESCRIPTION QTY. 1 102633-02 Outer Casing Top 1 2 102624-02 Outer Casing 1 3 099230-02 Shoulder Screw 14 4 098304-01 Scre[...]

  • Page 26

    26 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® ACCESSORIES Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA International’s Sales Department at 1-866-672-6040 for referral information. You can also write to the ad- dress listed on the back page of this manual. CABINET MANTEL [...]

  • Page 27

    27 107029 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________[...]

  • Page 28

    2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com 107029-01 REV. C 04/02 LIMITED WARRANTY VENT-FREE NATURAL GAS COMPACT CLASSIC HEARTH ® FIREPLACE DESA International warrants this product to be free from defects in materials and components for four (4) years and five (5) years on stainless steel burners from the da[...]