Page 2 - VENT-FREE NATURAL GAS COMPACT FIREPLACE; Carbon Monoxide Poisoning:; WARNINGS; DANGER: Carbon monoxide
2 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® SAFETYINFORMATION Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re-semble the flu, with headaches, dizziness,or nausea. If you have these signs, thefireplace may not be working properly.Get fresh air at once! Have fire...
Page 3 - OWNER’S MANUAL; LOCAL CODES; American National Standards Institute, Inc.; Figure 1 - Vent-Free Natural Gas Compact Fireplace; UNPACKING; SAFETY PILOT
3 104408 OWNER’S MANUAL PRODUCTIDENTIFICATION LOCAL CODES Install and use fireplace with care. Follow alllocal codes. In the absence of local codes, usethe latest edition of The National Fuel GasCode ANS Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 143...
Page 4 - ASSEMBLY; ASSEMBLING FIREPLACE; • Phillips screwdriver; Installing Log; Lift screen up and pull out to remove.; W A R N I N G : A l w a y s h a v e; Figure 2 - Assembling Fireplace; Assembling Hood
4 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® ASSEMBLY ASSEMBLING FIREPLACE Tools Required: • Phillips screwdriver • 5/16" hex wrench • slotted screwdriver Installing Log 1. Remove back log, branch, and hood fromlog box. Discard protective packaging. 2. Remove two shipping screws a...
Page 5 - Unusually Tight Construction; per
5 104408 OWNER’S MANUAL AIR FORCOMBUSTION ANDVENTILATION Today’s homes are built more energy effi-cient than ever. New materials, increasedinsulation, and new construction methodshelp reduce heat loss in homes. Home ownersweather strip and caulk around windows anddoors to keep the cold air out and t...
Page 6 - DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION; Determining if You Have a Confined or Unconfined Space
6 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® DETERMINING FRESH-AIR FLOW FOR FIREPLACE 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 fireplac...
Page 7 - Ventilation Air From Outdoors; Do not provide openings for
7 104408 OWNER’S MANUAL AIR FORCOMBUSTION ANDVENTILATION Continued Figure 4 - Ventilation Air from Inside Building Shown with Optional Mantel VENTILATION AIR Ventilation Air From InsideBuilding This fresh air would come from an adjoiningunconfined space. When ventilating to anadjoining unconfined sp...
Page 8 - CAUTION: If you install the; • where there is easy access for operation,; CAUTION: This heater creates; Your Vanguard fireplace is designed; CHECK GAS TYPE; WARNING: Never install the; INSTALLATION
8 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® CAUTION: If you install the fireplace in a home garage• fireplace pilot and burner must be at least 18 inches abovefloor. • locate fireplace where moving vehicle will not hit it. For convenience and efficiency, installfireplace • where ther...
Page 9 - Install fireplace near an
9 104408 OWNER’S MANUAL Figure 7 - Mounting Clearances As ViewedFrom Front of Fireplace Shown with Op-tional Mantel Top OfMantel CanBe FlushWith Wall LeftSide CEILING RightSide 36"Minimum INSTALLATION Continued Continued 36 5/8" 25 7/8" 51 3/4" 26 7/8" Figure 9 - Rough Opening fo...
Page 10 - Figure 12 - Attaching Brass Trim to Fireplace; Refer to instructions provided with; Figure 13 - Attaching Wood Base to Floor
10 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® 13" 16" 19" 21" 2 1/2" 6" 8" 10" Note: All verticalmeasurementsare from top offireplaceopening to bottom ofmantel shelf. Allmeasurementsare in inches. Figure 12 - Attaching Brass Trim to Fireplace OPTIONAL M...
Page 11 - Repeat steps 1 through 6 for other corner.; Figure 14 - Assembling Brass Trim; Lift screen off heater.; Removing Valve Cover Shield; Do not remove shoul-; Figure 16 - Removing Valve Cover Shield; Installing Blower Assembly; If you are using a mantel with your
11 104408 OWNER’S MANUAL Assembling Brass Trim (Brasstrim shipped with mantel) 1. Remove packaging from three remain-ing pieces of brass trim. 2. Locate two adjusting plates with setscrews, and two shims in the hardwarepacket. 3. Align shim under adjusting plate asshown in Figure 14. 4. Slide one en...
Page 12 - Figure 17 - Installing Blower Bracket Assembly; When switch is in the
12 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® 4. Carefully disconnect green and whitewires at their insulated connectors. 5. In top of the heater cabinet, locate thefour mounting holes on the outer cas-ing. Align these four holes with thoseon the blower bracket assembly. Attachblower ...
Page 13 - For Built-In Installation; Figure 19 - Installing Blower Bracket Assembly; Extension Cord; Reinstall valve cover shield.
13 104408 OWNER’S MANUAL 321 For Built-In Installation WARNING: A licensed elec- trician must connect the wiringharness to electrical supply fol-lowing all local codes. Electri-cian must provide a clamp onthe box cover to secure the wir-ing. Wiring should be routedthrough the bushing in the holeon t...
Page 14 - Check gas line pressure be-; WARNING: Never connect; Floor anchors and mounting screws; Figure 21 - Folding Anchor; Figure 22 - Gas Connection
14 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® CONNECTING TO GASSUPPLY WARNING: A qualified ser- vice person must connect fire-place to gas supply. Follow alllocal codes. IMPORTANT: Check gas line pressure be- fore connecting fireplace to gas line. Gasline pressure must be no greater t...
Page 15 - Figure 23 - Removing Log Base Assembly From Fireplace; Installation Items Needed; Figure 24 - Attaching Flexible Gas Lines Together
15 104408 OWNER’S MANUAL INSTALLATION Continued Figure 23 - Removing Log Base Assembly From Fireplace CONNECTING FIREPLACETO GAS SUPPLY Installation Items Needed • Phillips screwdriver • sealant (resistant to propane/LP gas, not provided) 1. Remove fireplace screen. Remove twoscrews that hold firepl...
Page 16 - Test Pressures In Excess Of 1/2 PSIG; Figure 25 - Manual Shutoff Valve; WARNING: Never use an open; Correct all leaks at once.
16 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® ON POSITION OFF POSITION Pressure Testing Gas SupplyPiping System Test Pressures In Excess Of 1/2 PSIG 1. Disconnect fireplace and its individualmanual shutoff valve from gas supplypiping system. Pressures in excess of 1/2psig will damage ...
Page 17 - CAUTION: Do not try to adjust; FOR YOUR SAFETY; WARNING: You must operate
17 104408 OWNER’S MANUAL CAUTION: Do not try to adjust h e a t i n g l e v e l s b y u s i n g t h emanual shutoff valve. Thermocouple Pilot Burner Figure 28 - Pilot Ignitor Electrode OPERATINGFIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, ...
Page 18 - Thermostat Control Operation; The thermostat sensing bulb mea-; Shutting Off Fireplace; Turn control knob clockwise
18 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® TO TURN OFF GAS TO APPLIANCE Thermostat Control Operation The thermostat used on this fireplacesenses the room temperature. At timesthe room may exceed the set tempera-ture. If so, the burner will shut off. Theburner will cycle back on whe...
Page 19 - BURNER FLAME PATTERN; Figure 32 - Correct Burner Flame Pattern; Figure 30 - Correct Pilot Flame Pattern; Figure 31 - Incorrect Pilot Flame Pattern; PILOT FLAME PATTERN; • turn fireplace off (see To Turn Off Gas to
19 104408 OWNER’S MANUAL BURNER FLAME PATTERN Figure 32 shows a correct burner flamepattern. Figure 33 shows an incorrect burnerflame pattern. The incorrect burner flamepattern shows the flame consistently higherthan one inch above the log. If burner flame pattern is incorrect, as shownin Figure 33 ...
Page 20 - TROUBLESHOOTING; POSSIBLE CAUSE; All troubleshooting items are listed in
20 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® TROUBLESHOOTING POSSIBLE CAUSE 1. Ignitor cable pinched or wet 2. Ignitor electrode not connected to ignitor cable 3. Broken ignitor cable4. Bad piezo ignitor5. Ignitor electrode broken6. Ignitor electrode positioned wrong 1. Gas supply tu...
Page 21 - OBSERVED PROBLEM; nance, page 23) or replace burner orifice
21 104408 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Slight smoke or odor during initial operation Fireplace produces a whistling noise whenburner is lit White powder residue forming within burnerbox or ...
Page 22 - IMPORTANT
22 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® 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...
Page 23 - CABINET; Air Passageways; WARNING: Turn off fireplace; SERVICE HINTS; When Gas Pressure Is Too Low; Figure 35 - Pilot Inlet Air Hole
23 104408 OWNER’S MANUAL CLEANING ANDMAINTENANCE CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabi-net to remove dust. WARNING: Turn off fireplace and let cool before cleaning. CAUTION: Y...
Page 25 - PARTS LIST; KEY
25 104408 OWNER’S MANUAL PARTS LIST VMH10TNA This list contains replaceable parts used inyour fireplace. When ordering parts, followthe instructions listed under ReplacementParts on page 26 of this manual. KEY VMH10TNA NO. PART NO. DESCRIPTION QTY. 1 102633-02CK Outer Casing Top 1 2 102624-02 Outer ...
Page 26 - SPECIFICATIONS; PARTS UNDER WARRANTY
26 104408 VENT-FREE NATURAL GAS COMPACT FIREPLACE VMH10TNA ® SPECIFICATIONS REPLACEMENTPARTS Note: Use only original replacement parts. This will protect your warranty coverage forparts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product.If they can’t supply orig...
Page 27 - ACCESSORIES
27 104408 OWNER’S MANUAL ACCESSORIES Purchase these fireplace accessories fromyour local dealer. If they cannot supply theseaccessories call DESA International’s SalesDepartment at 1-800-458-2472 for referralinformation. You can also write to the ad-dress listed on the back page of this manual. CABI...
Page 28 - KEEP THIS WARRANTY; Model; WARRANTY INFORMATION; NOT A UPC
2701 Industrial DriveP.O. Box 90004Bowling Green, KY 42102-9004 www.desatech.com 104408-01REV. D01/00 INTERNATIONAL LIMITED WARRANTY VENT-FREE NATURAL GAS COMPACT CLASSIC HEARTH ® FIREPLACE DESA International warrants this product to be free from defects in materials and components for four (4) year...