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Desa Vanguard VMH10TP Owner's Operation And Installation Manual

Vent-free propane/lp gas compact classic hearth fireplace
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VENT-FREE PROPANE/LP GAS
COMPACT CLASSIC HEARTH FIREPLACE
OWNER'S OPERATION AND INSTALLATION MANUAL
®
10,000 Btu/Hr with
Thermostat
VMH10TP
WARNING: If the information in this manual is not fol-
lowed 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 any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• 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 in-
structions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency, or the gas supplier.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state
or local codes. This appliance may be installed in bedroom where not prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer. (I.E. Installation of this product is
permitted after the manufactured (mobile) home is sited)
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.
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 adequate
combustion and ventilation air
must be provided. Refer to Air for
Combustion and Ventilation sec-
tion on page 6 of this manual.

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Summary of Contents for Desa Vanguard VMH10TP

  • Page 1 OWNER’S OPERATION AND INSTALLATION MANUAL ® 10,000 Btu/Hr with Thermostat VMH10TP WARNING: If the information in this manual is not fol- lowed 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 any other appliance.

  • Page 2: Table Of Contents

    CONTENTS SAFETY INFORMATION SECTION Safety Information ... 2 Product Identification ... 4 Local Codes ... 4 Product Features ... 4 Unpacking ... 4 Assembly ... 5 Air for Combustion and Ventilation ... 6 Installation ... 10 Connecting to Gas Supply ... 16 Checking Gas Connections ...
  • Page 3 SAFETY INFORMATION Continued 103669 WARNINGS WARNING ICON G 001 WARNING: Any change to this fireplace or its controls can be dangerous. 1. 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. 2.

  • Page 4: Product Identification

    PRODUCT IDENTIFICATION LOCAL CODES PRODUCT FEATURES UNPACKING Fireplace Cabinet Logs Figure 1 - Vent-Free Propane/LP Gas Compact Fireplace 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, also known as NFPA 54*.

  • Page 5: Assembly

    ASSEMBLY 103669 WARNING ICON G 001 Always have branch support and screen in place before operating fireplace. This prevents excessive temperatures on fireplace surfaces. ASSEMBLING FIREPLACE Tools Required: Phillips screwdriver, 5/16" hex wrench, and slotted screwdriver Installing Log 1. Remove back log, branch, and hood from log box. Discard protective packaging. 2.

  • Page 6: Air For Combustion And Ventilation

    AIR FOR COMBUSTION VENTILATION Today’s homes are built more energy efficient 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.
  • Page 7 AIR FOR COMBUSTION VENTILATION Continued 103669 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 passageways or ventilation grills between the rooms.
  • Page 8 AIR FOR COMBUSTION 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 provide 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 4).
  • Page 9 AIR FOR COMBUSTION VENTILATION Continued 103669 Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces.

  • Page 10: Installation

    INSTALLATION A qualified service person must install fireplace. Follow all local codes. CHECK GAS TYPE Use only propane/LP gas. If your gas supply is not propane/LP, do not install fire- place. Call the dealer where you bought your fireplace for the proper type fireplace. INSTALLATION ITEMS Before installing fireplace, make sure you have the items listed below.
  • Page 11 INSTALLATION Continued 103669 WARNING ICON This fireplace creates warm air currents. These currents move heat to wall surfaces next to fireplace. Installing fireplace next to vinyl or cloth wall coverings or operating fireplace where impurities in the air (such as tobacco smoke) exist, may discolor walls. IMPORTANT: Vent-free fireplaces add moisture to the air.
  • Page 12 INSTALLING Continued BUILT-IN FIREPLACE INSTALLATION Built-in installation of this fireplace involves installing fireplace into a framed-in enclosure. This makes the front of fireplace flush with wall. An optional brass trim kit accessory is available (see Accessories, page 29). Brass trim will extend past sides of fireplace approximately inch.
  • Page 13 INSTALLING Continued 103669 6. Attach flexible gas line to fireplace gas regulator. See Connecting Fireplace to Gas Supply, page 17. 7. If the optional blower has been installed connect blower to electrical source. Options one and two: Route blower electrical cord through side or rear access door of fireplace.
  • Page 14 INSTALLING Continued OPTIONAL MANTEL INSTALLATION Refer to instructions provided with the mantel for assembly instructions. Refer to Note: instructions below for system installation. Refer to instructions on page 5 for firebox assembly. Blower accessory should be installed if it is being used (see Accessories, page 29). 1.
  • Page 15 INSTALLING Continued 103669 Assembling Brass Trim (Brass trim shipped with mantel) 1. Remove packaging from three remaining 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.

  • Page 16: Connecting To Gas Supply

    CONNECTING TO GAS SUPPLY A qualified service person must connect fireplace to gas supply. Follow all local codes. WARNING ICON Never connect 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. The installer must supply an external regulator.
  • Page 17 CONNECTING TO GAS SUPPLY Continued 103669 Approved Flexible Gas Line 3" Minimum Figure 17 - Gas Connection * Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 29. CONNECTING FIREPLACE TO GAS SUPPLY Installation Items Needed •...

  • Page 18: Checking Gas Connections

    CONNECTING TO GAS SUPPLY Continued CHECKING CONNECTIONS 4. Apply pipe joint sealant lightly to male threads of gas connector attached to flexible gas line (see Figure 18). Connect flexible gas line to flexible gas line attached to gas regulator of fireplace (see Figure 18). 5.
  • Page 19 CHECKING CONNECTIONS Continued 103669 Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 20). 2. Pressurize supply piping system by either using compressed air or opening propane/LP supply tank valve. 3. Check all joints from propane/LP supply tank to manual shutoff valve (see Figure 21).

  • Page 20: Operating Fireplace

    OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.
  • Page 21 OPERATING FIREPLACE Continued 103669 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 20. If you don’t smell gas, go to the next step. 5.

  • Page 22: Inspecting Burner

    OPERATING FIREPLACE Continued INSPECTING BURNER TO TURN OFF GAS TO APPLIANCE Shutting Off Fireplace 1. Turn control knob clockwise 2. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1.
  • Page 23 INSPECTING BURNER Continued 103669 Thermocouple Figure 25 - Incorrect Pilot Flame Pattern If pilot flame pattern is incorrect, as shown in Figure 25 • turn fireplace off (see To Turn Off Gas to Appliance, page 22). • see Troubleshooting, pages 24 through 27. BURNER FLAME PATTERN Figure 26 shows a correct burner flame pattern.

  • Page 24: Cleaning And Maintenance

    CLEANING MAINTENANCE TROUBLE- SHOOTING All troubleshooting Note: items are listed in order of operation. WARNING ICON Turn off fireplace and let cool before cleaning. WARNING ICON You must keep control areas, burner, and circulating air passage- ways of fireplace clean. Inspect these areas of fireplace before each use.
  • Page 25 TROUBLE- SHOOTING Continued 103669 OBSERVED POSSIBLE PROBLEM CAUSE When ignitor button 1. Gas supply turned off is pressed, there is or manual shutoff spark at ODS/pilot valve closed but no ignition 2. Control knob not in PILOT position 3. Control knob not pressed in while in PILOT position 4.
  • Page 26 TROUBLE- SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE Burner does not light 1. Burner orifice is after ODS/pilot is lit clogged 2. Burner orifice diameter is too small 3. Inlet gas pressure is too low Delayed ignition of 1. Manifold pressure is burner too low 2.
  • Page 27 TROUBLE- SHOOTING Continued 103669 WARNING ICON G 001 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. •...

  • Page 28: Technical Service

    SPECIFICATIONS SERVICE HINTS REPLACEMENT PARTS You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323-5190. Input Rate Type Gas Ignition Pressure Regulator Setting Inlet Gas Pressure (in. of water) *...

  • Page 29: Accessories

    103669 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 address listed on the back page of this manual.

  • Page 30: Illustrated Parts List

    12-1 12-2 12-1 VMH10TP 103669...
  • Page 31 PARTS LIST 12-1 12-2 103669 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. Model: VMH10TP VMH10TP PART NO. DESCRIPTION 102633-01 Outer Casing Top...

  • Page 32: Warranty Information

    VENT-FREE PROPANE/LP GAS COMPACT CLASSIC HEARTH FIREPLACE DESA International warrants this product to be free from defects in materials and components for three (3) 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 maintained in accordance with all applicable instructions.

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