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Vanguard Heating VMH26TPC, VMH26TNC - page 1
Save this manual for future reference. For more information, visit www.desatech.com 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 ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 2
www.desatech.com 113111-01A 2 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 ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 3
www.desatech.com 113111-01A 3 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 ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 4
www.desatech.com 113111-01A 4 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. Follow the gas supplier’ s instructions • if you cannot rea ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 5
www.desatech.com 113111-01A 5 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 of f the fireplace if there is not enough fresh air . PIEZO IGNITION SYSTEM This fireplace has a piezo ignitor . ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 6
www.desatech.com 113111-01A 6 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. 3. Insert hood tabs betw ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 7
www.desatech.com 113111-01A 7 Unusually tight construction is defined as construction where: a. walls and ceilings exposed to the out- side atmosphere have a continuous water vapor retar der with a rating of one perm (6 x 10 -11 kg per pa-sec-m 2 ) or less with openings gasketed or sealed and b. weather stripping has been added on openable windows ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 8
www.desatech.com 113111-01A 8 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 V entilation Air Fr om Inside Building. B. V ent room directly to the outdoors. See V entila- tion Air Fr om Outdoors . C. Install a ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 9
www.desatech.com 113111-01A 9 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. This will help circulate the he ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 10
www.desatech.com 113111-01A 10 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. Y ou can recess firebox into the wall. Y ou can also position fireplace in the optional cabinet or cor- ner mantels. IMPORT ANT: Only use optional cabine ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 11
www.desatech.com 113111-01A 11 WARNING: Do not allow any combustible materials to over- lap the firebox front facing. IMPORT ANT : Noncombustible materials such as brick, tile, etc. may overlap the front facing, but should never cover any necessary openings like louvered slots. WARNING: Do not allow non- combustible materials to cover any necessary ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 12
www.desatech.com 113111-01A 12 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 ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 13
www.desatech.com 113111-01A 13 INSTALLATION Continued Figure 13 - Attaching Wood Base to Floor 1 3 / 4 " Screw Wood Base 10. Attach wood base to floor with two 1 3 / 4 " black screws provided (see Figure 13). If the floor is concrete use anchor method (see Attaching W ood Base to Solid Floor , page 16). 1 1. Install gas line. See Connecti ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 14
www.desatech.com 113111-01A 14 INSTALLATION Continued Figure 16 - Removing Valve Cover Shield 1 2 Remove Screw Valve Cover Shield Shoulder Screw Branch Support Snap Bushings Bottom Louver Assembly sembly to the outer casing with 4 #10 screws provided (see Figure 17). 6. Route the wire harness through the hole in left side of baffle. Pull wire harne ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 15
www.desatech.com 113111-01A 15 Figure 20 - Installing Blower Bracket Assembly INSTALLATION Continued Figure 18 - Installing Switch Plate to Valve Cover Shield Switch Plate Screw 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- ci ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 16
www.desatech.com 113111-01A 16 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. This will result in loss of power and overheating. U ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 17
www.desatech.com 113111-01A 17 of screen. Discard screws. Lift fireplace screen up and pull out to remove. 2. Remove screws that attach branch support to fireplace (see Figure 24). Carefully lift up branch support and remove from fireplace (see Figure 24). 3. Route flexible gas line included from fireplace control to equipment shutoff valve through ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 18
www.desatech.com 113111-01A 18 Figure 25 - Attaching Flexible Gas Line to Equipment Shutoff Valve Flexible Gas Line from Fireplace Gas Regulator Provided with Fireplace To Fireplace Gas Regulator Equipment Shutoff Valve Provided by Installer PROPANE/LP To External Regulator NATURA L To Gas Supply INSTALLATION Continued CHECKING GAS CONNECTIONS WARN ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 19
www.desatech.com 113111-01A 19 INSTALLATION Continued Figure 27 - Checking Gas Joints for Propane/LP Gas (Shown with Optional Mantel) Equipment Shutoff Valve Propane/LP Supply Tank Figure 28 - Checking Gas Joints for Natural Gas (Shown with Optional Mantel) Equipment Shutoff Valve Gas Meter OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING W ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 20
www.desatech.com 113111-01A 20 5. T urn control knob counter clockwise to the PILOT position. Pr ess in control knob for five (5) seconds (see Figur e 29). Note: Y ou may be running this fireplace for the first time after hooking up to gas supply . If so, the contr ol knob may need to be pressed in for 30 seconds or more. This will allow air to ble ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 21
www.desatech.com 113111-01A 21 OPERATING FIREPLACE Continued OPERATING BLOWER This blower has thr ee 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 AUT O position, the blower will start when the thermostat senses a sufficient increase in firebox tempe ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 22
www.desatech.com 113111-01A 22 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. Fireplace may need mo ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 23
www.desatech.com 113111-01A 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. This can damage ODS/pilot unit. POSSIBLE C ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 24
www.desatech.com 113111-01A 24 POSSIBLE CAUSE 1 . Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Safety interlock system has been triggered 4. Equipment shutof f valve not fully open 5 . Thermocouple connection loose at control valve 6. Pilot flame not touching ther - mocouple, which allows ther- mocouple to cool, c ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 25
www.desatech.com 113111-01A 25 TROUBLESHOOTING Continued POSSIBLE CAUSE 1. Residues from manufacturing processes 1. T urning control knob to HI po- sition when burner is cold 2. Air in gas line 3. Air passageways on fireplace blocked 4 . Dirty or partially clogged burner orifice 1. When heated, vapors from fur- niture polish, wax, carpet cleaners, ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 26
www.desatech.com 113111-01A 26 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. • If you cannot reach your gas supplier, ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 27
www.desatech.com 113111-01A 27 SERVICE HINTS When Gas Pressure Is Too Low • pilot will not stay lit • burner will have delayed ignition • fireplace will not produce specified heat • propane/LP gas supply may be low (propane/ LP only) Y ou may feel your gas pressure is too low . If so, con- tact your local propane/LP or natural gas supplier ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 28
www.desatech.com 113111-01A 28 ILLUSTRATED PARTS BREAKDOWN MODELS VMH26TPC (Shown) AND VMH26TNC 23 29 40 32 36 38 13 7 8 33 40 11 10 4 7 30 1 3 2 9 17 19 6 22 31 21 41 42 16 15 18 24 28 34 25 27 20 4 35 12 24 12-1 14 25 14 40 3 37 26 39 39 5 43 44 6 9 ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 29
www.desatech.com 113111-01A 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. KEY PART NUMBER NO. VMH26TPC VMH26TNC DESCRIPTION QTY. 1 102633-02 102633-02 Outer Casing Top 1 2 102624-02 102624-02 Outer Casing 1 3 099230-02 ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 30
www.desatech.com 113111-01A 30 ACCESSORIES NOTICE: All accessories may not be available for all fireplace models. 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. Y ou can also write to the address list ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 31
www.desatech.com 113111-01A 31 ACCESSORIES Continued CORNER MANTEL WITH FULL HEARTH BASE Unfinished - GMC63U Finished - GMC64F White Lacquer - GMC65W For all models. Space-saving mantel and hearth base corner design features clean, classic lines. A vailable in a stained oak finish, white lacquer finish, or an unfinished birch, ready to stain or pai ...
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Vanguard Heating VMH26TPC, VMH26TNC - page 32
2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com LIMITED WARRANTY VENT-FREE COMPACT CLASSIC HEARTH ® FIREPLACE 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 t ...
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