Vanguard VMH26PRA Owner's Operation And Installation Manual

Vent-free propane/lp gas compact classic hearth fireplace.
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15,000 to 26,000 Btu/Hr
Remote Control Ready
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result caus-
ing 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 any
other appliance.
• 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
• If you cannot reach your gas supplier, call the
fire department.
— Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.
This appliance may be installed in an aftermarket*, permanently located, manufactured (mobile)
home, where not prohibited by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This appliance is
not convertible for use with other gases.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference.
Shown with Optional
Cabinet Mantel/Hearth
Base Accessory
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation and
operational procedures. For as-
sistance or additional information
consult a qualified installer, ser-
vice agency, or the gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) from the room in which it
is installed. Provisions for ad-
equate combustion and venti-
lation air must be provided.
Refer to Air for Combustion and
Ventilation section on page 5 of
this manual.


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   Summary of Contents for Vanguard VMH26PRA

  • Page 1

    VENT-FREE PROPANE/LP GAS COMPACT CLASSIC HEARTH OWNER’S OPERATION AND INSTALLATION MANUAL VMH26PRA 15,000 to 26,000 Btu/Hr Remote Control Ready WARNING: If the information in this manual is not followed exactly, a fire or explosion may result caus- ing property damage, personal injury, or loss of life.

  • Page 2: Safety Information

    Ceiling fans can create drafts that alter burner flame patterns. Altered burner patterns can cause sooting. For more information, visit VMH26PRA WARNING: Do not use a blower insert, heat exchanger insert, or other accessory not approved for use with this fireplace.

  • Page 3: Product Features, Local Codes, Remote Control Accessories, Product Identification

    SAFETY INFORMATION Continued 16. Operating fireplace above elevations of 4,500 feet could cause pilot outage. 17. Do not operate fireplace if any log is broken. Do not operate fireplace if a log is chipped (dime-sized or larger). 18. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs.

  • Page 4

    5. Reattach screen by placing the notches in the screen frame over the shoulder screws and pushing down. For more information, visit VMH26PRA Screen Figure 3 - Assembling Fireplace Assembling Hood 1. Locate four black phillips sheet metal screws from the hardware packet.

  • Page 5

    AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ven- tilation air. Read the following in- structions to insure proper fresh air for this and other fuel-burning appliances in your home.

  • Page 6

    National Fuel Gas Code, ANS Z223.1, Section 5.3 or applicable local codes. For more information, visit VMH26PRA Example: Gas water heater...

  • Page 7

    AIR FOR COMBUSTION AND VENTILATION Continued 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 openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 5).

  • Page 8: Locating Fireplace

    See Air for Combustion and Ventilation, pages 5 through 7. For more information, visit VMH26PRA Note: Your Vanguard fireplace is designed to be used in zero clearance installations. Wall or framing material can be placed...

  • Page 9

    INSTALLATION Continued BUILT-IN FIREPLACE INSTALLATION Built-in installation of this fireplace involves installing fireplace into a framed-in enclo- sure. This makes the front of fireplace flush with wall. An optional brass trim kit acces- sory is available (see Accessories, pages 28 and 29).

  • Page 10

    7. Use two 3" wood screws provided and attach fireplace base to wooden base (see Figure 12). For more information, visit VMH26PRA 8. Remove brass trim kit and mantel. Be careful not to damage wall or mantel. 9. Place wood base next to wall at instal- lation location.

  • Page 11

    INSTALLATION Continued Top Brass Trim Slot Screws Mitered Edge Shim Side Brass Trim Adjusting Plate Slot Figure 14 - Assembling Brass Trim INSTALLING BLOWER ACCESSORY GA3400T Removing Upper Louver Assembly To install the blower accessory, you must first remove the upper louver assembly. Lift screen off heater and remove log set.

  • Page 12

    For more information, visit VMH26PRA 1. Install a snap bushing found in hard- ware kit into one of the holes found rear of valve cover shield. The other hole is for a strain relief clamp (not supplied) to secure incoming electrical supply.

  • Page 13: Connecting To Gas Supply

    INSTALLATION Continued Attaching Wood Base to Solid Floor For attaching base to solid floors (concrete or masonry) Note: Floor anchors and mounting screws are in hardware package. The hardware pack- age is provided with fireplace. 1. Drill holes at marked locations using 5/16"...

  • Page 14

    Reat- tach branch support to fireplace with screws removed in step 2. For more information, visit VMH26PRA CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.

  • Page 15: Checking Gas Connections

    INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints.

  • Page 16

    Receiver Terminal Wires Battery Clip 9-Volt Battery Figure 29 - Attaching Battery to Receiver For more information, visit VMH26PRA Black Wire Wire Harness* Wires from Valve Black Wire Figure 30 - Installing Remote Receiver * Wire harness provided in the fireplace hardware pack.

  • Page 17

    INSTALLATION Continued 6. Connect one bare wire end to each ter- minal (“W” and “R”) of the thermostat base (see Figure 35). 7. Install the base onto the wall with the provided screws. 8. Move the temperature adjustment back and forth to insure the bimetal is free from restrictions.

  • Page 18: Operating Fireplace

    For more information, visit VMH26PRA LIGHTING INSTRUCTIONS WARNING: You must operate this fireplace with the fireplace screen in place.

  • Page 19

    OPERATING FIREPLACE Continued Pilot Burner Ignitor Electrode Figure 37 - Pilot TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Turn control knob clockwise to the OFF position. 2a. Set selector switch in the OFF position. 2b. If Using Optional Hand-Held Re- mote: Set selector switch in the OFF position to keep from draining battery.

  • Page 20: Inspecting Burners

    Auto Setting been Selected Figure 39 - Thermostat Hand-Held Remote Control Unit Selections (GHRCTA Series Only) For more information, visit VMH26PRA GWMT1 WALL MOUNTED THERMOSTAT (OPTIONAL) Make sure the heater switch is on AUTO and set the temperature adjustment on wall thermostat to the desired setting.

  • Page 21: Inspecting Burner, Cleaning And Maintenance

    INSPECTING BURNER Continued BURNER FLAME PATTERN Figure 43 shows a correct burner flame pattern. Figure 44 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tip- ping. It also shows the flame consistently higher than one inch above the log. Note: When using the fireplace the first time, the flame will be orange for approxi- mately one hour until the log cures.

  • Page 22: Troubleshooting

    ODS/pilot but no ignition ODS/pilot lights but flame goes out when control knob is released For more information, visit VMH26PRA WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.

  • Page 23

    TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Moisture/condensation noticed on windows Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture Remote does not function 107034...

  • Page 24

    Heater shuts off in use (ODS operates) Gas odor even when control knob is in OFF position Gas odor during combustion For more information, visit VMH26PRA WARNING: If you smell gas POSSIBLE CAUSE 1. Metal expanding while heating or con- tracting while cooling 1.

  • Page 25: Specifications, Service Hints, Technical Service, Wiring Diagram

    SPECIFICATIONS Btu (Variable) Type Gas Ignition Manifold Pressure Inlet Gas Pressure (in. of water) * Maximum Minimum Dimensions, Inches (H x W x D) Fireplace (including hood and screws) Carton Weight, pounds Fireplace Shipping * For purposes of input adjustment SERVICE HINTS When Gas Pressure Is Too Low •...

  • Page 26


  • Page 27

    PARTS LIST VMH26PRA This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. 107034 OWNER’S MANUAL KEY NO. PART NO. DESCRIPTION 102633-02CK Outer Casing Top...

  • Page 28

    (when unit is on the floor). Provides a finished appear- ance by covering rough edges of wall open- ing. Included with all mantels. For more information, visit VMH26PRA THERMOSTATICALLY - CONTROLLED BLOWER KIT GA3400T Provides better heat distribution. Makes fire- place more efficient.

  • Page 29

    ACCESSORIES Continued RECEIVER AND HAND-HELD THERMOSTAT REMOTE CONTROL KIT - GHRCT SERIES For all models. Allows the gas log heater to be operated in a manually or thermostati- cally controlled mode. You can turn the gas log heater on and off without ever leaving the comfort of your easy chair.

  • Page 30: Warranty Information, Limited Warranty

    WARRANTY INFORMATION Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied. VENT-FREE PROPANE/LP GAS COMPACT CLASSIC HEARTH 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 date of first purchase, provided that the product has been properly installed, operated and...

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