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  5. Owner's Operation And Installation Manual

Vanguard VMH26TNC Owner's Operation And Installation Manual

Other manuals for VMH26TNC: Operating And Installation Manual

Summary of VMH26TNC

  • Page 1

    For more information, visit www.Desatech.Com warning: if the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. — do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or a...

  • Page 2: Safety

    Www.Desatech.Com 113111-01h 2 safety table of contents safety .................................................................. 2 local codes......................................................... 4 product identification ........................................... 4 product features ...............

  • Page 3: Be Dangerous.

    Www.Desatech.Com 113111-01h 3 warning: any change to this heater or its controls can be dangerous. Warning: do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner patter...

  • Page 4: Safety

    Www.Desatech.Com 113111-01h 4 safety continued 10. This fireplace needs fresh air ventilation to run properly. This fireplace has an oxygen depletion sensing (ods) safety shutoff system. The ods shuts down the fire- place if not enough fresh air is available. See air for combustion and ventilation, ...

  • Page 5: Product Features

    Www.Desatech.Com 113111-01h 5 product features assembly figure 2 - assembling fireplace log screen burner support with log locator tabs branch support shoulder screw safety pilot this fireplace has a pilot with an oxygen depletion sensing (ods) safety shutoff system. The ods/pilot is a required feat...

  • Page 6: Assembly

    Www.Desatech.Com 113111-01h 6 assembly continued assembling hood 1. Locate four black phillips sheet metal screws from the hardware packet. 2. Rotate hood as shown in figure 3. Make sure hood tabs point toward fireplace. 3. Insert hood tabs between baffle and lou- vers (see figure 3). 4. Gently rota...

  • Page 7

    Www.Desatech.Com 113111-01h 7 c. Caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings. If your home meet...

  • Page 8: Or Applicable Local Codes.

    Www.Desatech.Com 113111-01h 8 warning: if the area in which the heater may be operated does not meet the required volume for indoor combustion air, combus- tion and ventilation air shall be provided by one of the methods described in the national fuel gas code, ansi z223.1/nfpa 54, the international...

  • Page 9: Installation

    Www.Desatech.Com 113111-01h 9 installation important: vent-free fireplaces add mois- ture to the air. Although this is beneficial, installing fireplace in rooms without enough ventilation air may cause mildew to form from too much moisture. See air for combustion and ventilation, page 6. Note: your ...

  • Page 10: Warning:  Maintain  The

    Www.Desatech.Com 113111-01h 10 locating fireplace warning: maintain the minimum clearances shown in figures 6 and 7. If you can, provide greater clearances from floor, ceiling, and joining wall. You can recess firebox into the wall. You can also position fireplace in the optional cabinet or corner m...

  • Page 11: Combustible/noncombustible

    Www.Desatech.Com 113111-01h 11 important: when finishing your firebox, combustible materials warning: do not allow any combustible/noncombustible materials to overlap the firebox front facing. Warning: do not allow noncombustible materials to cover any necessary openings like louvered slots. Warning...

  • Page 12: Warning: Never Modify Or

    Www.Desatech.Com 113111-01h 12 warning: never modify or cover the louvered slots on the front of the firebox. Mantel clearances for built-in installation if placing mantel above built-in fireplace, you must meet minimum clearance between man- tel shelf and top of fireplace opening. Notice: surface t...

  • Page 13: Installation

    Www.Desatech.Com 113111-01h 13 installation continued 9. Check all gas connections for leaks. See checking gas connections, page 18. 10. Carefully insert fireplace into cabinet mantel (see figure 13). Be careful not to scratch or damage hearth base or cabinet mantel. 11. Place metal trim on shoulder...

  • Page 14: Installation

    Www.Desatech.Com 113111-01h 14 installation continued figure 16 - removing valve cover shield 1 2 remove screw valve cover shield shoulder screw branch support snap bushings bottom louver assembly 4. Carefully disconnect green and white wires at their insulated connectors. 5. In top of heater cabine...

  • Page 15: Installation

    Www.Desatech.Com 113111-01h 15 installation continued figure 18 - installing switch plate to valve cover shield switch plate screw valve cover shield for built-in installation warning: a licensed elec- trician must connect the wiring harness to electrical supply following all local codes. Electri- c...

  • Page 16: Installation

    Www.Desatech.Com 113111-01h 16 installation continued caution: never connect pro- pane/lp fireplace directly to the propane/lp supply. This fireplace requires an external regulator (not supplied). Install the external regulator between the fireplace and propane/lp supply. Warning: never connect natu...

  • Page 17: Installation

    Www.Desatech.Com 113111-01h 17 installation continued installation must include an equipment shutoff valve, union, and plugged 1/8" npt tap. Lo- cate npt tap within reach for test gauge hook up. Npt tap must be upstream from fireplace (see figure 22). Important: install equipment shutoff valve in an...

  • Page 18: Installation

    Www.Desatech.Com 113111-01h 18 installation continued checking gas connections warning: test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. Warning: never use an open flame to check for a leak. Apply a noncorrosive l...

  • Page 19: Installation

    Www.Desatech.Com 113111-01h 19 installation continued pressure testing fireplace gas connections 1. Open equipment shutoff valve (see figure 25, page 18). 2. Open main gas valve located on or near gas meter for natural gas or open pro- pane/lp supply tank valve. 3. Make sure control knob of fireplac...

  • Page 20: Equipment Shutoff Valve.

    Www.Desatech.Com 113111-01h 20 note: if pilot does not stay lit, refer to troubleshooting, page 24. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see manual lighting procedure, page 21. 7. Keep control ...

  • Page 21: Operation

    Www.Desatech.Com 113111-01h 21 to turn off gas to appliance shutting off fireplace 1. Turn control knob clockwise to the off position. 2. Turn off all electric power to the appliance if service is to be performed. 3. Close equipment shutoff valve (see figure 25, page 18). Thermostat control operatio...

  • Page 22: Inspecting Burner

    Www.Desatech.Com 113111-01h 22 thermocouple pilot burner figure 31 - correct pilot flame pattern (propane/lp shown) thermocouple pilot burner figure 32 - incorrect pilot flame pattern (propane/lp shown) burner flame pattern figure 33 shows a correct burner flame pat- tern. Figure 34 shows an incorre...

  • Page 23: Cleaning and Maintenance

    Www.Desatech.Com 113111-01h 23 cleaning and maintenance 4. Check injector holder located at end of 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 primary air holes on injector holder. 6. In case any large cl...

  • Page 24: Troubleshooting

    Www.Desatech.Com 113111-01h 24 troubleshooting warning: turn off heater and let cool before servicing. Only a qualified 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 ...

  • Page 25: Troubleshooting

    Www.Desatech.Com 113111-01h 25 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. Thermocouple connection loose at control valve 6. Pilot flame not touching thermoco...

  • Page 26: Troubleshooting

    Www.Desatech.Com 113111-01h 26 troubleshooting continued possible cause 1. Residues from manufactur- ing processes 1. Turning control knob to hi position when burner is cold 2. Air in gas line 3. Air passageways on fire- place blocked 4. Dirty or partially clogged burner orifice 1. When heated, vapo...

  • Page 27: Warning: If You Smell Gas

    Www.Desatech.Com 113111-01h 27 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. Fol- low the gas supplier’s instructions. • ...

  • Page 28: Service Hints

    Www.Desatech.Com 113111-01h 28 service hints when gas pressure is too low • pilot will not stay lit • burner will have delayed ignition • fireplace will not produce specified heat • propane/lp gas supply may be low (pro- pane/lp only) you may feel your gas pressure is too low. If so, contact your lo...

  • Page 29: Accessories

    Www.Desatech.Com 113111-01h 29 accessories perimeter trim kit - ga6095 for all models. Optional four-sided perimeter trim kit for custom and recessed installations (when unit is on the floor). Provides a finished appearance by covering rough edges of wall opening. Perimeter trim kit ga6094 - polishe...

  • Page 30: Parts

    Www.Desatech.Com 113111-01h 30 parts models vmh26tpc (shown) and vmh26tnc 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 42 16 15 18 24 28 34 25 27 20 4 35 12 24 12-1 14 25 14 40 3 37 26 39 39 5 6 9.

  • Page 31: Parts

    Www.Desatech.Com 113111-01h 31 parts this list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under replacement parts on page 28 of this manual. Key no. Part no. Description qty 1 102633-02 outer casing top • • 1 2 102624-02 outer casing • • 1 ...

  • Page 32: Warranty

    113111 01 113111-01 rev. H 09/08 not a upc desa heating, llc 2701 industrial drive bowling green, ky 42101 www.Desatech.Com 1-866-672-6040 warranty keep this warranty desa heating, llc limited warranties new products standard warranty: desa heating, llc warrants this new product and any parts thereo...