Vanguard VMH3000TPA Owner's Operation And Installation Manual

Vent-free propane/lp gas mini-hearth heater.
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15,000 to 30,000 Btu/Hr
with Thermostat
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
— 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*, 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
Mantel Which Features
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 5 of this manual.
a Built-In Base


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   Summary of Contents for Vanguard VMH3000TPA

  • Page 1

    VENT-FREE PROPANE/LP GAS MINI-HEARTH OWNER’S OPERATION AND INSTALLATION MANUAL VMH3000TPA 15,000 to 30,000 Btu/Hr with Thermostat 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, Local Codes

    ® PROPANE/LP GAS RESIDENTIAL HEATERS SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.

  • Page 3: Product Identification, Product Features, Safety Device, Piezo Ignition System

    PRODUCT IDENTIFICATION Ignitor Button Heater Cabinet Figure 1 - Vent-Free Gas Log Propane/LP Gas Space Heater PRODUCT FEATURES SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters.

  • Page 4

    ® PROPANE/LP GAS RESIDENTIAL HEATERS ASSEMBLY Continued Front Panel Sheet Metal Screw Truss- Head Screw Brass Front Trim Screw Figure 3 - Assembling Heater WARNING: Always have burner shield and screen in place before operating heater. This pre- vents excessive temperatures on heater surfaces.

  • Page 5: Providing Adequate Ventilation

    FRESH 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: Air For Combustion And Ventilation

    ® PROPANE/LP GAS RESIDENTIAL HEATERS AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER 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 heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

  • Page 7: Ventilation Air

    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 7).

  • Page 8: Locating Heater, Check Gas Type, Installation Items

    ® PROPANE/LP GAS RESIDENTIAL HEATERS INSTALLATION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your pri- mary heating system. Do not in- stall this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater.

  • Page 9: Installation Options

    INSTALLATION Continued THERMOSTAT SENSING BULB The thermostat sensing bulb has been placed inside the heater for protection during shipping. Locating Thermostat Sensing Bulb 1. Remove front panel of heater (see Fig- ure 2, page 3). 2. Locate thermostat sensing bulb just under burner assembly.

  • Page 10

    ® PROPANE/LP GAS RESIDENTIAL HEATERS INSTALLATION Continued Attaching To Wall Anchor Method For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry) 1. Drill holes at marked locations using 5/16" drill bit. For solid walls (concrete or masonry), drill at least 1"...

  • Page 11

    INSTALLATION Continued Mounting Heater to Optional Hearth Base 1. Lay heater on its back on a table with the bottom of heater overhanging the edge of the table. 2. Remove 2 shipping screws in bottom of heater. Discard shipping screws. 3.

  • Page 12: Connecting To Gas Supply

    ® PROPANE/LP GAS RESIDENTIAL HEATERS INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance re- quires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified service person must connect heater to gas supply. Follow all local codes. WARNING: Never connect heater to private (non-utility) gas wells.

  • Page 13: 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 14: Operating Heater

    ® PROPANE/LP GAS RESIDENTIAL HEATERS OPERATING HEATER 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. A. This appliance has a pilot which must be lighted by hand.

  • Page 15: Inspecting Burner, Burner Flame Pattern, Pilot Flame Pattern

    OPERATING HEATER Continued THERMOSTAT CONTROL OPERATION The thermostatic control used on this heater differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room temperature. The thermostat adjusts the amount of gas flow to the burner.

  • Page 16: Troubleshooting

    ® PROPANE/LP GAS RESIDENTIAL HEATERS TROUBLESHOOTING Note: For additional help, visit DESA International’s technical service web site at Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot When ignitor button is pressed, there is spark at ODS/pilot but no ignition ODS/pilot lights but flame goes out when...

  • Page 17

    TROUBLESHOOTING Continued 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 Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture 107098...

  • Page 18

    ® PROPANE/LP GAS RESIDENTIAL HEATERS 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. •...

  • Page 19: Cleaning And Maintenance, Replacement Parts

    CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person.

  • Page 20


  • Page 21

    PARTS LIST VMH3000TPA 107098 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. VMH3000TPA PART NO. DESCRIPTION 098304-01 Screw, #10 x 3/8" 100566-01CK Front Panel...

  • Page 22: Specifications, Technical Service, Service Hints

    ® PROPANE/LP GAS RESIDENTIAL HEATERS SPECIFICATIONS Btu (Variable) Type Gas Ignition Pressure Regulator Setting Inlet Gas Pressure (in. of water) * Maximum Minimum Dimensions, Inches (H x W x D) Heater Carton Weight (pounds) Heater Shipping * For purposes of input adjustment For more information, visit 15,000/30,000 Propane/LP Only...

  • Page 23

    ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories call DESA International’s Sales Department at 1-800-458-2472 for infor- mation. You can also write to the address listed on the back page of this manual. EQUIPMENT SHUTOFF VALVE - GA5010 Equipment shutoff valve with 1/8"...

  • Page 24: 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 HEATERS 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 maintained in...

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