Vanguard VMH10TNB Owner'S Operation And Installation Manual Download Page 1

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VENT-FREE NATURAL GAS

COMPACT CLASSIC HEARTH

®

 FIREPLACE

OWNER’S OPERATION AND INSTALLATION MANUAL

®

Shown with Optional

Cabinet Mantel/Hearth

Base Accessory

VMH10TNB

10,000 Btu/Hr with

Thermostat

WARNING: If the information in this manual
is not followed exactly, a fire or explosion
may result causing property damage, per-
sonal 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 per-

formed by a qualified installer, service
agency, or the gas supplier.

WARNING: Improper instal-
lation, adjustment, alteration,
service, or maintenance can
cause injury or property dam-
age. Refer to this manual for
correct installation and op-
erational procedures. For as-
sistance or additional infor-
mation consult a qualified in-
staller, 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 com-
bustion and ventilation air
must be provided. Refer to
Air for Combustion and Ven-
tilation section on page 5 of
this manual.

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 the 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

Summary of Contents for VMH10TNB

Page 1: ...stallation and service must be per formed by a qualified installer service agency or the gas supplier WARNING Improper instal lation adjustment alteration service or maintenance can causeinjuryorpropertydam age Refer to this manual for correct installation and op erational procedures For as sistance or additional infor mation consult a qualified in staller serviceagency orthe gas supplier WARNING ...

Page 2: ...s gasoline and other flammable vapors and liquids 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 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 Fo...

Page 3: ...rmostat sensing bulb and a control valve The thermostat will automatically modulate the heat output to maintain a consistent room temperature This results in greater fireplace comfort This can also result in lower gas bills Ignitor Button Screen Fireplace Cabinet Log Control Knob UNPACKING 1 Remove log box and fireplace from carton IMPORTANT The fireplace hood is inside the cardboard protective en...

Page 4: ...ushing down Figure 3 Assembling Fireplace WARNING Always have branch support and screen in place before operating fireplace Thispreventsexcessivetempera tures on fireplace surfaces WARNING Failure to position thepartsinaccordancewiththese diagrams or failure to use only parts specifically approved with this fireplace may result in prop erty damage or personal injury Assembling Hood 1 Locate four b...

Page 5: ...n However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is de fined as construction where a walls and ceilings exposed to the outside atmosphere have a con tinuous water vapor retarder with a rating of one perm 6 x 10 11 kg per pa sec m2 or less with open ings gasketed or sealed and b weather stripping has been added on openable win...

Page 6: ...Btu Hr Total ________________________ Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used _________________ Btu Hr maximum the space can support _________________ Btu Hr actual amount of Btu Hr used Example 35 840 Btu Hr maximum the spac...

Page 7: ...on Grills into Adjoining Room Option 1 WARNING Rework work sheet adding the space of the adjoining unconfined space The combined spaces must have enough fresh air to supply all appliances in both spaces Figure 6 Ventilation Air from Outdoors Shown with Optional Mantel Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts You must provide two per manent openings...

Page 8: ...per type fireplace INSTALLATION ITEMS Before installing fireplace make sure you have the items listed below piping check local codes sealant resistant to propane LP gas equipment shutoff valve test gauge connection ground joint union sediment trap tee joint pipe wrench AnCSA AGAdesign certifiedequipment shutoff valve with 1 8 NPT tap is an ac ceptable alternative to test gauge connec tion Purchase...

Page 9: ...wer Instruc tions for power cord length Option two Have a licensed electrician install a properly grounded three prong 120 volt electrical outlet at fireplace location Locate outlet inside the framed enclosure Blower power cord will plug into this outlet Option three Have a licensed electri cian connect blower to electrical source at junction box inside fireplace If using option one have electrica...

Page 10: ... method seeAttachingWoodBasetoSolidFloor page 14 11 Install gas line See Connecting To Gas Supply page 14 12 Check for leaks See Checking Gas Connections page 16 13 Place mantel around fireplace Be care ful not to damage wall or mantel 14 Place brass trim kit on the shoulder screws located on the side and top of the fireplace Firmly snap the brass trim over the shoulder screws on fireplace see Fig...

Page 11: ... the assembly down see Fig ure 17 2 Using short Phillips screwdriver re move the screw under the center of the branch support Rotate valve cover shield clockwise and slide out IMPORTANT Do not remove shoul der screw on the left side of valve cover shield Slide the valve cover shield off of the shoulder screw see Figure 17 Note If you do not have a short Phillips screwdriver the screen logset and b...

Page 12: ...to switch posi tion 1 Reconnect green and white wires Figure19 InstallingSwitchPlatetoValve Cover Shield Switch Plate Screw Valve Cover Shield INSTALLATION Continued 9 Install the switch plate on the valve cover shield with 2 10 screws provided see Figure 19 Reinstall the valve cover shield Route power cord out of the cabinet by inserting it through the bushing on the outer casing see Fig ure 18 P...

Page 13: ... 5 Plug power cord to the outlet receptacle not provided as shown in figure 21 Wind the extra cable in power cord and tie it up with the plastic wire strap see Figure 21 Set the cable bundle be tween the burner bracket and outer cas ing away from the burner 6 Reinstall valve cover shield 7 Test to make sure the blower is work ing properly 8 Reinstall upper louver assembly and hood if previously re...

Page 14: ...Inter nally tinned copper tubing may be used in certain areas Check your local codes Use pipe of 1 2 or greater diameter to al low proper gas volume to fire place If pipe is too small un due loss of pressure will occur CAUTION Usepipejointseal ant that is resistant to liquid pe troleum LP gas Attaching Wood Base to Solid Floor For attaching base to solid floors concrete or masonry Note Floor ancho...

Page 15: ...ireplace To Fireplace Gas Regulator NOTICE Most building codes do not permit concealed gas con nections A flexible gas line is provided to allow accessibility fromthefireplace seeFigure25 The flexible gas supply line con nection to the equipment shutoff valve should be accessible Figure 25 Attaching Flexible Gas Lines Together Gas Connector Flexible Gas Line from Equipment Shutoff Valve Provided B...

Page 16: ...r rect all leaks at once WARNING Neveruseanopen flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once INSTALLATION Continued Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Fig ure 26 2 Pressurize supply piping system by ei ther using compressed air or opening main gas valve l...

Page 17: ...r gas supplier Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been un der water Control Knob WARNING You must operate this fireplace with the fireplace screen in place Make sure...

Page 18: ...Burner Only pilot stays lit Turn control knob clockwise to the PILOT position 1 Follow steps 1 through 5 under Light ing Instructions page 17 2 With control knob pressed in strike match Hold match to pilot until pi lot lights 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow step 8 page 17 MANUAL LIGHTING PROCEDURE OPERATING BLOWER ...

Page 19: ...lame About One Inch Below Logs INSPECTING BURNER Figure 31 Correct Pilot Flame Pattern Actual Pilot May Vary From Illustration Figure 32 Incorrect Pilot Flame Pattern Actual Pilot May Vary From Illustration Check pilot flame pattern and burner flame pattern often PILOT FLAME PATTERN Figure31showsacorrectpilotflamepattern Figure 32 shows an incorrect pilot flame pattern Theincorrectpilotflameisnotp...

Page 20: ...nitor 1 Turn on gas supply or open equipment shutoff valve 2 Turn control knob to PILOT position 3 Press in control knob while in PILOT position 4 Continue holding down control knob Re peatignitingoperationuntilairisremoved 5 Clean ODS pilot see Cleaning and Maintenance page 23 or replace ODS pilot assembly 6 Replace gas regulator 1 Press in control knob fully 2 After ODS pilot lights keep control...

Page 21: ...r 1 Problem will stop after a few hours of operation 1 Operate burner until air is removed from line Have gas line checked by local natural gas company 2 Observe minimum installation clearances see pages 8 through 10 3 Clean burner see Cleaning and Mainte nance page 23 or replace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products POSSIBLE CAUSE 1 B...

Page 22: ...ing statement at top of page 2 Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak SeeWarning statement at top of page 1 Not enough combustion ventilation air OBSERVED PROBLEM Fireplace produces a clicking ticking noise just after burner is lit or shut off Fireplace produces unwanted odors Fireplace shuts off in use ODS operates Gas odor even when control knob is i...

Page 23: ... cre ate soot We recommend that you clean the unit every three months during operation and have heater inspected yearly by a quali fied service person Wealsorecommendthatyoukeeptheburner tube and pilot assembly clean and free of dustanddirt Tocleanthesepartswerecom mend using compressed air no greater than 30 PSI Your local computer store hard ware store or home center may carry com pressed air in...

Page 24: ...ATURAL GAS COMPACT FIREPLACE VMH10TNB ILLUSTRATED PARTS BREAKDOWN VMH10TNB 23 28 31 8 35 37 13 14 3 8 32 11 10 4 7 29 1 3 2 3 42 9 17 19 6 22 30 21 40 27 38 38 16 15 18 24 5 33 26 25 20 4 4 34 36 12 24 12 1 25 14 8 39 41 12 ...

Page 25: ...ube 1 17 100587 01 Brass Screw 6 x 3 8 4 18 098303 02 Regulator Screw 2 19 104335 01CK Outer Shell Base 1 20 102649 02CK Branch Support 1 21 099415 10 Gas Regulator 1 22 102875 01 Regulator Bracket 1 23 101381 01 Valve Cover and Piezo 1 24 099387 03 Pilot Tube 1 25 098271 06 Ignitor Cable 1 26 M11084 38 Screw 8 x 3 8 1 27 101004 12 Injector 1 28 098522 14 Gas Valve 1 29 102639 01 Baffle 1 30 10162...

Page 26: ...opane LPornaturalgas purchase date Usually we will ask you to return the defec tive part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA International s Parts De partment at 1 800 972 7879 for referral in formation WhencallingDESAInternational haveready model number of your fireplace the replacement part ...

Page 27: ...ncluded EQUIPMENT SHUTOFF VALVE GA5010 Equipmentshutoffvalvewith1 8 NPTtap THERMOSTATICALLY CONTROLLED BLOWER KIT GA3400T Providesbetterheatdistribution Makesfire place more efficient Automatically turns off and on as needed BRASS TRIM KIT GA6095 Optionalfour sidedbrasstrimkitforrecessed built ininstallations whenunitisraisedoffof the floor Provides a finished appearance by covering rough edges of...

Page 28: ...efects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective fireplace will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITSTHEDURATIONOFANYANDALLIMPL...

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