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VENT-FREE COMPACT FIREPLACE
OWNER'S OPERATION AND INSTALLATION MANUAL
Shown with Optional Cabinet Mantel/Hearth Base Accessory
MODELS VMH26TPC AND VMH26TNC
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 quali-
fied installer, service agency, or the gas supplier.
For more information, visit www.desatech.com
Save this manual for future reference.
®
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Related Manuals for Desa Vanguard VMH26TPC
Summary of Contents for Desa Vanguard VMH26TPC
- Page 1 VENT-FREE COMPACT FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL Shown with Optional Cabinet Mantel/Hearth Base Accessory MODELS VMH26TPC AND VMH26TNC 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
WARNING: Improper installation, adjustment, altera- tion, service, or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency, or the gas supplier. WARNING: This is an unvented gas-fired heater. -
Page 3: Safety Information
SAFETY INFORMATION WARNING: This product con- tains and/or generates chemicals known to the state of California to cause cancer or birth defects, or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this fireplace. Im- proper use of this fireplace can cause serious injury or death from burns, fire, explosion, elec-... -
Page 4: Local Codes
SAFETY INFORMATION Continued 3. 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. -
Page 5: Product Features
PRODUCT FEATURES SAFETY PILOT This fireplace has a pilot with an Oxygen Deple- tion 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. PIEZO IGNITION SYSTEM This fireplace has a piezo ignitor. -
Page 6: Air For Combustion And Ventilation
ASSEMBLY Continued 5. Reattach screen by placing the notches in the screen frame over the shoulder screws and pushing down. Assembling Hood 1. Locate four black phillips sheet metal screws from the hardware packet. 2. Rotate hood as shown in Figure 3. Make sure hood tabs point toward fireplace. - Page 7 AIR FOR COMBUSTION AND VENTILATION Continued Unusually tight construction is defined as construction where: a. walls and ceilings exposed to the out- side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10 kg per pa-sec-m or less with openings gasketed or sealed and b.
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Page 8: Combustion And Ventilation Air
AIR FOR COMBUSTION AND VENTILATION Continued A. Rework worksheet, adding the space of an adjoin- ing room. If the extra space provides an uncon- fined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building. B. -
Page 9: Installation
INSTALLATION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri- mary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. -
Page 10: Locating Fireplace
INSTALLATION Continued LOCATING FIREPLACE WARNING: Maintain the minimum clearances shown in Figures 6 and 7. If you can, pro- vide greater clearances from floor, ceiling, and joining wall. You can recess firebox into the wall. You can also position fireplace in the optional cabinet or cor- ner mantels. - Page 11 INSTALLATION Continued WARNING: If pre-wiring, do not connect wiring to any elec- trical source at this time. Install fireplace electrical outlet and connect wiring to outlet be- fore connecting to electrical source. The fireplace electrical outlet is included with the GA3450T blower accessory.
- Page 12 INSTALLATION Continued WARNING: Never modify or cover the louvered slots on the front of the firebox. WARNING: Use only non- combustible mortar or adhe- sives when overlapping the front facing with noncombustible fac- ing material. Mantel Clearances for Built-In Installation If placing mantel above built-in fireplace, you must meet minimum clearance between mantel shelf and top of fireplace opening.
- Page 13 INSTALLATION Continued 10. Attach wood base to floor with two 1 screws provided (see Figure 13). If the floor is concrete use anchor method (see Attaching Wood Base to Solid Floor, page 16). 11. Install gas line. See Connecting To Gas Sup- ply, page 16.
- Page 14 INSTALLATION Continued Branch Support Shoulder Screw Valve Cover Remove Shield Screw Snap Bushings Figure 16 - Removing Valve Cover Shield Installing Blower Assembly CAUTION: Label all wires prior to disconnection when ser- vicing controls. Wiring errors can cause improper and dan- gerous operation.
- Page 15 INSTALLATION Continued Switch Screw Plate Figure 18 - Installing Switch Plate to Valve Cover Shield For Built-In Installation WARNING: A licensed elec- trician must connect the wiring harness to electrical supply fol- lowing all local codes. Electri- cian must provide a clamp on the box cover to secure the wir- ing.
- Page 16 INSTALLATION Continued Extension Cord Use extension cord if needed. The cord must have a three-prong, grounding plug and a three-hole recep- tacle. Make sure cord is in good shape. It must be heavy enough to carry the current needed. An under- sized cord will cause a drop in line voltage.
- Page 17 INSTALLATION Continued Installation must include a equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from fireplace (see Figure 23). IMPORTANT: Install equipment shutoff valve in an accessible location.
- Page 18 INSTALLATION Continued To Fireplace Equipment Shutoff Gas Regulator Valve Provided by Installer Flexible Gas Line from Fireplace Gas Regulator Provided PROPANE/LP with Fireplace To External Regulator NATURAL To Gas Supply Figure 25 - Attaching Flexible Gas Line to Equipment Shutoff Valve CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections, internal...
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Page 19: Operating Fireplace
INSTALLATION Continued Equipment Shutoff Valve Propane/LP Supply Tank Figure 27 - Checking Gas Joints for Propane/LP Gas (Shown with Optional Mantel) Equipment Shutoff Valve Gas Meter Figure 28 - Checking Gas Joints for Natural Gas (Shown with Optional Mantel) OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol-... -
Page 20: To Turn Off Gas To Appliance
OPERATING FIREPLACE Continued 5. Turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 29). Note: You may be running this fireplace for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds or more. -
Page 21: Inspecting Burner
OPERATING FIREPLACE Continued OPERATING BLOWER This blower has three settings: ON, OFF, and AUTO. In the ON position, the blower will op- erate constantly. In the OFF position, the blower will not operate. In the AUTO position, the blower will start when the thermostat senses a sufficient increase in firebox temperature. -
Page 22: Cleaning And Maintenance
CLEANING AND MAINTENANCE WARNING: Turn off fireplace and let cool before cleaning. CAUTION: You must keep control areas, burner, and cir- culating air passageways of fire- place clean. Inspect these areas of fireplace before each use. Have fireplace inspected yearly by a qualified service person. -
Page 23: Troubleshooting
Note: All troubleshooting items are listed in order of operation. WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. - Page 24 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is re- leased Burner does not light after ODS/ pilot is lit Delayed ignition of burner Burner backfiring during com- bustion Yellow flame during burner combustion TROUBLESHOOTING Continued POSSIBLE CAUSE 1.
- Page 25 OBSERVED PROBLEM Slight smoke or odor during ini- tial operation Fireplace produces a whistling noise when burner is lit White powder residue forming within burner box or on adja- cent walls or furniture Fireplace produces a clicking/ ticking noise just after burner is lit or shut off 113111-01B TROUBLESHOOTING...
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Page 26: Shut Off Gas Supply
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 27: Specifications
If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040. When calling, please have your model and serial numbers of your heater ready. You can also visit DESA Heating Products’ tech- nical services web site at www.desatech.com. 113111-01B SPECIFICATIONS... -
Page 28: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN MODELS VMH26TPC (Shown) AND VMH26TNC www.desatech.com 12-1 113111-01B... -
Page 29: Parts List
This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 27 of this manual. PART NUMBER VMH26TPC 102633-02 102624-02 099230-02 098304-01 109824-05 103209-05 102635-02 101629-02 M10908-75 104281-02BR 104281-02BR Firebox Hood... -
Page 30: Accessories
Purchase these fireplace accessories from your local dealer. If they cannot supply these accesso- ries call DESA Heating Products’ Sales Depart- ment at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual. - Page 31 ACCESSORIES Continued CORNER MANTEL WITH FULL HEARTH BASE Unfinished - GMC63U Finished - GMC64F For all models. Space-saving mantel and hearth base corner design features clean, classic lines. Available in a stained oak finish, white lacquer finish, or an unfinished birch, ready to stain or paint.
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Page 32: Warranty Information
VENT-FREE COMPACT CLASSIC HEARTH DESA Heating Products 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 accordance with all applicable instructions.