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Vanguard Heating VMH10TNA manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. VENT -FREE NA TURAL GAS COMP ACT CLASSIC HEAR TH ® FIREPLACE OWNER’S OPERA TION AND INST ALLA TION MANUAL ® Shown with Optional Cabinet Mantel/Hearth Base Accessory VMH10TNA 10,000 Btu/Hr with Thermostat WARNING: If the information in this manual is not followed exactly, a fire or explosion may result caus[...]

  • Page 2

    2 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® SAFETY INFORMA TION Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- semble 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 fireplace ser- viced. Some people are more a[...]

  • Page 3

    3 104408 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 ANS Z223.1 , also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fir[...]

  • Page 4

    4 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® ASSEMBL Y ASSEMBLING FIREPLACE Tools Required: • Phillips screwdriver • 5/16" hex wrench • slotted screwdriver Installing Log 1 . Remove back log, branch, and hood from log box. Discard protective packaging. 2. Remove two shipping screws above screen (see Figure 2). 3. Lift [...]

  • Page 5

    5 104408 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 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install fireplace plus any adjoining rooms with doorless passa[...]

  • Page 7

    7 104408 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Continued Figure 4 - Ventilation Air from Inside Building Shown with Optional Mantel VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must pro- vide two permanent open[...]

  • Page 8

    8 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® CAUTION: If you install the fireplace in a home garage • fireplace pilot and burner must be at least 18 inches above floor. • locate fireplace where moving vehicle will not hit it. For convenience and efficiency, install fireplace • where there is easy access for operation, inspe[...]

  • Page 9

    9 104408 OWNER’S MANUAL Figure 7 - Mounting Clearances As Viewed From Front of Fireplace Shown with Op- tional Mantel Top Of Mantel Can Be Flush With Wall Left Side CEILING Right Side 36" Minimum INST ALLA TION Continued Continued 36 5/8" 25 7/8" 51 3/4" 26 7/8" Figure 9 - Rough Opening for Installing in Corner 1. Frame i[...]

  • Page 10

    10 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® 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. Figure 12 - Attaching Brass Trim to Fireplace OPTIONAL MANTEL INSTALLATION Note: Refer[...]

  • Page 11

    11 104408 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 14. 4. Slide one end of adjusting plate/shim in slot on mitere[...]

  • Page 12

    12 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® 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 wit[...]

  • Page 13

    13 104408 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 19 - [...]

  • Page 14

    14 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® 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 pressu[...]

  • Page 15

    15 104408 OWNER’S MANUAL INST ALLA TION Continued Figure 23 - Removing Log Base Assembly From Fireplace CONNECTING FIREPLACE TO GAS SUPPLY Installation Items Needed • Phillips screwdriver • sealant (resistant to propane/L P gas, not provided) 1. Remove fireplace screen. Remove two screws that hold fireplace screen in place for shipping. These[...]

  • Page 16

    16 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® ON POSITION OFF POSITION Pressure Testing Gas Supply Piping System Test Pressures In Excess Of 1/2 PSIG 1. Disconnect fireplace and its individual manual shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage fireplace regulator . 2. Cap off open end [...]

  • Page 17

    17 104408 OWNER’S MANUAL CAUTION: Do not try to adjust heating levels by using the manual shutoff valve. Thermocouple Pilot Burner Figure 28 - Pilot Ignitor Electrode 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, perso[...]

  • Page 18

    18 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® TO TURN OFF GAS TO APPLIANCE Thermostat Control Operation The thermostat used on this fireplace senses the room temperature. At times the room may exceed the set tempera- ture. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set tem[...]

  • Page 19

    19 104408 OWNER’S MANUAL BURNER FLAME PATTERN Figure 32 shows a correct burner flame pattern. Figure 33 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows the flame consistently higher than one inch above the log. If burner flame pattern is incorrect, as shown in Figure 33 • turn fireplace off (see T o T urn Of f [...]

  • Page 20

    20 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® TROUBLESHOOTING POSSIBLE CAUSE 1. Ignitor cable pinched or wet 2. Ignitor electrode not connected to ignitor cable 3. Broken ignitor cable 4. Bad piezo ignitor 5. Ignitor electrode broken 6. Ignitor electrode positioned wrong 1. Gas supply turned off or manual shutof f valve closed 2.[...]

  • Page 21

    21 104408 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during 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 adjacent walls or furniture REMEDY 1. Clean[...]

  • Page 22

    22 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® 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?[...]

  • Page 23

    23 104408 OWNER’S MANUAL CLEANING AND MAINTENANCE CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture. W ipe the cabi- net to remove dust. WARNING: Turn off fireplace and let cool before cleaning. CAUTION: You must keep control areas, burner, and c[...]

  • Page 24

    24 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® ILLUSTRA TED PA R T S BREAKDOWN VMH10TNA 12-1 12-2 44 23 28 31 43 35 37 13 14 3 43 32 11 10 4 7 29 1 3 2 3 42 9 17 19 6 22 30 21 40 27 38 38 16 15 18 24 5 33 26 25 20 4 8 4 34 36 12 24 12-1 25 14 43 39 41[...]

  • Page 25

    25 104408 OWNER’S MANUAL P ARTS LIST VMH10TNA This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY VMH10TNA NO. PART NO. DESCRIPTION QTY. 1 102633-02CK Outer Casing Top 1 2 102624-02 Outer Casing 1 3 099230-02 Shoulder Screw 14 4 098[...]

  • Page 26

    26 104408 VENT -FREE NA TURAL GAS COMP ACT FIREPLACE VMH10TNA ® SPECIFICA TIONS 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 In[...]

  • Page 27

    27 104408 OWNER’S MANUAL ACCESSORIES Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA International’s Sales Department at 1-800-458-2472 for referral information. You can also write to the ad- dress listed on the back page of this manual. CABINET MANTEL WITH BUILT-IN HEARTH BASE AND [...]

  • Page 28

    2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com 104408-01 REV. D 01/00 INTERNA TIONAL 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 burn[...]