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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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Table of Contents
Related Manuals for Vanguard WMH26TNB
Summary of Contents for Vanguard WMH26TNB
- Page 1 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.
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ... 2 LOCAL CODES ... 3 PRODUCT IDENTIFICATION ... 3 PRODUCT FEATURES ... 4 UNPACKING ... 4 ASSEMBLY ... 4 AIR FOR COMBUSTION AND VENTILATION ... 5 INSTALLATION ... 7 OPERATING FIREPLACE ... -
Page 3: Local Codes
SAFETY INFORMATION Continued 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. Do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply tank(s) outdoors (propane/LP only). -
Page 4: Product Features
PRODUCT FEATURES UNPACKING ASSEMBLY Assembling Fireplace PRODUCT FEATURES SAFETY PILOT This fireplace has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room fireplaces. The ODS/pilot shuts off the fireplace if there is not enough fresh air. -
Page 5: Air For Combustion And Ventilation
ASSEMBLY Continued Assembling Hood 1. Locate four black phillips sheet metal screws from the hard- ware packet. 2. Rotate hood as shown in Figure 4. Make sure hood tabs point toward fireplace. 3. Insert hood tabs between baffle and louvers (see Figure 4). 4. - 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 The National Fuel Gas Code, ANSI Z223.1.3/ NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as...
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Page 7: Installation
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 provide two permanent openings: one within 12" of the ceiling and one within 12"... -
Page 8: Locating Fireplace
INSTALLATION Check Gas Type Installation Items Locating Fireplace INSTALLATION Continued CAUTION: This fireplace creates warm air cur- rents. These currents move heat to wall surfaces next to fireplace. Installing fireplace next to vinyl or cloth wall coverings or operating fireplace where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors. - Page 9 INSTALLATION Continued CAUTION: If you install the fireplace in a home garage • fireplace pilot and burner must be at least 18 inches above floor. • locate fireplace where moving vehicle will not hit it. For convenience and efficiency, install fireplace •...
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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- ishing and/or painting of wall. See instructions included with brass trim accessory for attaching brass trim. IMPORTANT: When finishing your firebox, combustible materials WARNING: Do not allow any combustible materi- als to overlap the firebox front facing. - Page 11 INSTALLATION Continued 5. Firmly snap brass trim kit on shoulder screws. Shoulder screws are located on fireplace cabinet (see Figure 13). 6. Align brass trim kit for flush fit around opening. 7. Use two 3" wood screws provided and attach fireplace base to wooden base (see Figure 13).
- Page 12 INSTALLATION Installing Blower Accessory - GA3450T (Cont.) INSTALLATION Continued Removing Valve Cover Shield 1. Open bottom louver assembly by swinging the assembly down (see Figure 17). 2. Using short Phillips screwdriver, remove the screw under the center of the branch support. Rotate valve cover shield clock- wise and slide out.
- Page 13 INSTALLATION Continued 9. Install the switch plate on the valve cover shield with 2 #10 screws provided (see Figure 18, page 12). Reinstall the valve cover shield. Route power cord out of the cabinet by inserting it through the bushing on the outer casing (see Figure 18, page 12).
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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 Use extension cord if needed. The cord must have a three-prong, grounding plug and a three-hole receptacle. Make sure cord is in good shape. - Page 15 INSTALLATION Continued We recommend that you install a sediment trap in supply line as shown in Figure 24. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants.
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Page 16: Checking Gas Connections
INSTALLATION Checking Gas Connections INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections 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 leak detection fluid to all joints. -
Page 17: Operating Fireplace
OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing prop- erty 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 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 TO TURN OFF GAS TO APPLIANCE Shutting Off Fireplace 1. Turn control knob clockwise Clockwise 2. Turn off all electric power to the appliance if service is to be performed. -
Page 19: Cleaning And Maintenance
INSPECTING BURNER Continued BURNER FLAME PATTERN Figure 35 shows a correct burner flame pattern. Figure 36 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tipping. The flame should not be dark or have an orange/reddish tinge. Note: When using the fireplace the first time, the flame will be orange for approximately one hour until the log cures. -
Page 20: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING Note: For additional help, visit DESA’s technical service site www.desatech.com. 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 control knob is released... - Page 21 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 Fireplace produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture For more information, visit www.desatech.com...
- 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.
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Page 23: Specifications
SPECIFICATIONS Btu (Variable) Type Gas Ignition Pressure Regulator Setting 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 24: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN Models VMH26TPB and VMH26TNB ILLUSTRATED PARTS BREAKDOWN MODELS VMH26TPB (Shown) AND VMH26TNB For more information, visit www.desatech.com For more information, visit www.desatech.com 12-1 111043-01A... -
Page 25: Parts List
PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, fol- low the instructions listed under Replace- ment Parts on page 23 of this manual. For more information, visit www.desatech.com For more information, visit www.desatech.com 111043-01A Models VMH26TPB and VMH26TNB PART NO. -
Page 26: Accessories
ACCESSORIES ACCESSORIES Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA Heating Products’ Sales Department at 1-866-672-6040 for referral information. 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 27: Owner's Registration Form
OWNER'S REGISTRATION FORM In order to provide better customer service for this and future purchases, we recommend that you register your product with us. 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. - 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 111043-01A TAPE...
- Page 29 NOTES NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ For more information, visit www.desatech.com For more information, visit www.desatech.com 111043-01A...
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Page 30: Warranty Information
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.