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For more information, visit www.desatech.com
For more information, visit www.desatech.com
VMH26TPB
VMH26TNB
14,000 to 26,000 Btu/Hr
with Thermostat
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 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
instructions.
• 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
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 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
VENT-FREE COMPACT FIREPLACE
OWNER'S OPERATION AND INSTALLATION MANUAL
®
Save this manual for future reference.
Save this manual for future reference.
Shown with Optional
Cabinet Mantel/Hearth
Base Accessory
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage.
Refer to this manual for correct installa-
tion and operational procedures. For as-
sistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
WARNING: This is an unvented gas-
fired heater. It uses air (oxygen) from the
room in which it is installed. Provisions
for adequate combustion and ventila-
tion air must be provided. Refer to Air for
Combustion and Ventilation section on
page 4 of this manual.

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Summary of Contents for Vanguard VMH26TPB

  • Page 1 VENT-FREE COMPACT FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL ® For more information, visit www.desatech.com For more information, visit www.desatech.com VMH26TPB VMH26TNB 14,000 to 26,000 Btu/Hr with Thermostat Shown with Optional Cabinet Mantel/Hearth Base Accessory WARNING: Improper installation, adjust- WARNING: If the information in this manual is not...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS CLEANING AND MAINTENANCE ..........19 SAFETY INFORMATION ............2 TROUBLESHOOTING .............. 20 LOCAL CODES ................3 SPECIFICATIONS ..............23 PRODUCT IDENTIFICATION ............. 3 SERVICE HINTS ............... 23 PRODUCT FEATURES .............. 4 TECHNICAL SERVICE ............. 23 UNPACKING ................
  • Page 3: Local Codes

    SAFETY INFORMATION LOCAL CODES PRODUCT IDENTIFICATION SAFETY INFORMATION Continued 1. This appliance is only for use with the type of gas indicated on 15. Operating fireplace above elevations of 4,500 feet could cause the rating plate. This appliance is not convertible for use with pilot outage.
  • Page 4: Product Features

    PRODUCT FEATURES UNPACKING ASSEMBLY Assembling Fireplace PRODUCT FEATURES ASSEMBLY SAFETY PILOT WARNING: Always have branch support and screen in place before operating fireplace. This pre- This fireplace has a pilot with an Oxygen Depletion Sensing (ODS) vents excessive temperatures on fireplace surfaces. safety shutoff system.
  • Page 5: Air For Combustion And Ventilation

    ASSEMBLY Assembling Fireplace (Cont.) AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation ASSEMBLY Continued Assembling Hood While it is good to make your home energy efficient, your home needs to breathe. Fresh air must enter your home. All fuel-burning 1. Locate four black phillips sheet metal screws from the hard- appliances need fresh air for proper combustion and ventilation.
  • Page 6 AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation (Cont.) Determining Fresh-Air Flow for Heater Location AIR FOR COMBUSTION AND VENTILATION Continued Confined and Unconfined Space Add the Btu/Hr of all fuel burning appliances in the space. Vent-free heater _____________ Btu/Hr The National Fuel Gas Code, ANSI Z223.1.3/ NFPA 54 defines a Gas water heater* _____________ Btu/Hr...
  • Page 7: Installation

    AIR FOR COMBUSTION AND VENTILATION Ventilation Air INSTALLATION AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilated Ventilation Air From Inside Building Outlet Attic This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must Outlet provide two permanent openings: one within 12"...
  • Page 8: Locating Fireplace

    CEILING tion air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, pages 5 through 7. Note: Your Vanguard fireplace is designed to be used in zero clearance 36" Minimum installations. Wall or framing material can be placed directly against any exterior surface of your fireplace, except where standoff spacers are 6"...
  • Page 9 INSTALLATION Locating Fireplace (Cont.) Built-In Fireplace Installation INSTALLATION Continued 2. If installing GA3450T blower accessory, do so at this time. CAUTION: If you install the fireplace in a home See Installing Blower Accessory GA3450T, page 11. garage Note: If not installing blower accessory, you may wish to run •...
  • Page 10: Optional Mantel Installation

    INSTALLATION Built-In Fireplace Installation (Cont.) Optional Mantel Installation INSTALLATION Continued 10. If using optional brass trim kit, install the trim after final fin- Mantel Clearances for Built-In Installation ishing and/or painting of wall. See instructions included with If placing mantel above built-in fireplace, you must meet minimum brass trim accessory for attaching brass trim.
  • Page 11 INSTALLATIONS Optional Mantel Installation (Cont.) Installing Blower Accessory - GA3450T INSTALLATION Continued 5. Firmly snap brass trim kit on shoulder screws. Shoulder screws Assembling Brass Trim (Brass Trim Shipped are located on fireplace cabinet (see Figure 13). with Mantel) 6. Align brass trim kit for flush fit around opening. 1.
  • Page 12 INSTALLATION Installing Blower Accessory - GA3450T (Cont.) INSTALLATION Continued Removing Valve Cover Shield 3. Note the wire locations on back of AUTO/OFF/ON switch. The terminals on back of switch are numbered 1, 2, and 3. 1. Open bottom louver assembly by swinging the assembly down Carefully remove red wire from terminal 1 and blue wire from (see Figure 17).
  • Page 13 INSTALLATION Installing Blower Accessory - GA3450T(Cont.) INSTALLATION Continued 9. Install the switch plate on the valve cover shield with 2 #10 5. Plug power cord to the outlet receptacle (not provided) as shown screws provided (see Figure 18, page 12). Reinstall the valve in figure 19.
  • Page 14: Connecting To Gas Supply

    INSTALLATION Installing Blower Accessory - GA3450T (Cont.) Attaching Wood Base to Solid Floor Connecting to Gas Supply INSTALLATION Continued Extension Cord For propane/LP units, installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You Use extension cord if needed. The cord must have a three-prong, must reduce incoming gas pressure to between 11 and 14 inches of grounding plug and a three-hole receptacle.
  • Page 15 INSTALLATION Connecting to Gas Supply (Cont.) Connecting Equipment Shutoff Valve to Heater Control INSTALLATION Continued We recommend that you install a sediment trap in supply line as CAUTION: Avoid damage to regulator. Hold gas shown in Figure 24. Locate sediment trap where it is within reach for regulator with wrench when connecting it to gas cleaning.
  • Page 16: Checking Gas Connections

    INSTALLATION Checking Gas Connections INSTALLATION Continued CHECKING GAS CONNECTIONS 3. Make sure control knob of fireplace is in the OFF position. WARNING: Test all gas piping and connections, 4. Check all joints from equipment shutoff valve to thermostat internal and external to unit, for leaks after installing gas valve.
  • Page 17: Operating Fireplace

    OPERATING FIREPLACE For Your Safety Read Before Lighting Lighting Instructions OPERATING FIREPLACE 5. Turn control knob counterclockwise to the PI- FOR YOUR SAFETY C-clockwise LOT position. Press in control knob for five (5) seconds READ BEFORE LIGHTING (see Figure 30). Note: You may be running this fireplace for the first time WARNING: If you do not follow these instructions after hooking up to gas supply.
  • Page 18: Inspecting Burner

    OPERATING FIREPLACE To Turn Off Gas To Appliance Thermostat Control Operation Manual Lighting Procedure Operating Blower INSPECTING BURNER Pilot Flame Pattern OPERATING FIREPLACE Continued Note: Your fireplace and thermostat blower will not turn on TO TURN OFF GAS and off at the same time. The fireplace may run for several TO APPLIANCE minutes before the blower turns on.
  • Page 19: Cleaning And Maintenance

    INSPECTING BURNER Burner Flame Pattern CLEANING AND MAINTENANCE Cleaning Burner Injector Holder and Pilot Air Inlet Hole Cabinet INSPECTING BURNER Continued BURNER FLAME PATTERN heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have Figure 35 shows a correct burner flame pattern.
  • Page 20: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING Note: For additional help, visit DESA WARNING: Turn off and unplug CAUTION: Never use a wire, Heating Products’ technical service web fireplace and let cool before servic- needle, or similar object to clean site at www.desatech.com. ing. Only a qualified service person ODS/pilot.
  • Page 21 TROUBLESHOOTING TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice is clogged 1. Clean burner (see Cleaning and Mainte- nance, page 19) or replace burner orifice 2. Inlet gas pressure is too low 2.
  • Page 22 TROUBLESHOOTING 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’s instructions.
  • Page 23: Specifications

    SPECIFICATIONS SERVICE HINTS TECHNICAL SERVICE REPLACEMENT PARTS SPECIFICATIONS VMH26TPB VMH26TNB Btu (Variable) 14,000/26,000 14,000/26,000 Type Gas Propane/LP Only Natural Only Ignition Piezo Piezo Pressure Regulator Setting 8" W.C. 3" W.C. Inlet Gas Pressure (in. of water) * Maximum 14" 10.5"...
  • Page 24: Illustrated Parts Breakdown And Parts List

    ILLUSTRATED PARTS BREAKDOWN Models VMH26TPB and VMH26TNB ILLUSTRATED PARTS BREAKDOWN MODELS VMH26TPB (Shown) AND VMH26TNB 12-1 For more information, visit www.desatech.com For more information, visit www.desatech.com 111043-01B...
  • Page 25: Parts List

    PARTS LIST Models VMH26TPB and VMH26TNB PARTS LIST PART NO. VMH26TPB VMH26TNB DESCRIPTION QTY. This list contains replaceable parts used in 102633-02 102633-02 Outer Casing Top your fireplace. When ordering parts, fol- 102624-02 102624-02 Outer Casing low the instructions listed under Replace-...
  • Page 26: Accessories

    ACCESSORIES ACCESSORIES CABINET MANTEL Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA Heating Products’ Sales AND FULL HEARTH Department at 1-866-672-6040 for referral information. You can BASE also write to the address listed on the back page of this manual. GMC80F Series - Oak Finished EQUIPMENT SHUTOFF...
  • Page 27: Owner's Registration Form

    You can register online at www.desatech.com. If access to our website is not available to you, please complete this Owner’s Registration Form and mail to the address on the back of this owner’s manual. Please provide the following product information: Brand: (Comfort Glow, Vanguard, etc.) Model: (EFP33PR, VTGH33NR, etc.) Date Purchased: Note: Keep receipt for warranty verification.
  • Page 28 Postage Required 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 For more information, visit www.desatech.com For more information, visit www.desatech.com 111043-01B TAPE...
  • Page 29 NOTES NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ For more information, visit www.desatech.com For more information, visit www.desatech.com 111043-01B...
  • Page 30: Warranty Information

    WARRANTY INFORMATION KEEP THIS WARRANTY 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.

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