Vanguard VMH26TPA Owner'S Operation And Installation Manual Download Page 18

18

104059

COMPACT CLASSIC HEARTH FIREPLACE

VMH26TPA

®

TO TURN OFF GAS TO

APPLIANCE

The thermostatic control used on this fire-
place differs from standard thermostats.
Standard thermostats simply turn on and
off the burner. The thermostat used on
this fireplace senses the room tempera-
ture. The thermostat adjusts the amount
of gas flow to the burner. This increases or
decreases the burner flame height. At times
the room may exceed the set temperature.
If so, the burner will shut off. The burner
will cycle back on when room temperature
drops below the set temperature.

The control knob can be set to any heat
level between HI and LO.

Note:

 The thermostat sensing bulb mea-

sures the temperature of air near the fire-
place cabinet. This may not always agree
with room temperature (depending on
housing construction, installation location,
room size, open air temperatures, etc.).
Frequent use of your fireplace will let you
determine your own comfort levels.

Shutting Off Fireplace

1.

Turn control knob clockwise  

Clockwise

to the OFF position.

2.

Turn off all electric power to the ap-
pliance if service is to be performed.

Shutting Off Burner Only (pilot
stays lit)

Turn control knob clockwise  

Clockwise

 to

the PILOT position.

THERMOSTAT CONTROL

OPERATION

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
FIREPLACE

Continued

OPERATING BLOWER

Auto/Off/On Switch

This blower has three settings: ON, OFF,
and AUTO. In the ON position, the blower
will operate constantly. In the OFF posi-
tion, the blower will not operate. In the
AUTO position, the blower will start when
the thermostat senses a sufficient increase
in firebox temperature.

Note:

 Your fireplace and thermostat

blower will not turn on and off at the
same time. The fireplace may run for
several minutes before the blower turns
on. After the heater modulates to the pilot
position, the blower will continue to run.
The blower will shut off after the firebox
temperature decreases.

Note:

 It is safe to operate fireplace with

blower turned off. However, the blower
helps distribute heated air from the
fireplace.

Figure 30 - Auto/Off/On Switch

Summary of Contents for VMH26TPA

Page 1: ...stallation and service must be performed by a qualified installer service agency or the gas supplier WARNING Improper installa tion adjustment alteration ser vice or maintenance can cause injury or property damage Re fer to this manual for correct installation and operational pro cedures For assistance or addi tional information consult a qualified installer service agency or the gas supplier WARN...

Page 2: ...es to cool before touching 18 Carefullysuperviseyoungchildrenwhen they are in same room with fireplace 19 Do not use fireplace if any part has been under water Immediately call a quali fied service technician to inspect the room fireplace and to replace any part of the control system and any gas con trol which has been under water 20 Turn off and unplug fireplace and let cool before servicing Only...

Page 3: ...e packet 4 Check fireplace for any shipping damage If fireplace is damaged promptly inform dealer where you bought fireplace PRODUCT FEATURES SAFETY PILOT This fireplace has a pilot with an Oxygen DepletionSensorShutoffSystem ODS 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 firepl...

Page 4: ...wer now Follow installation in structions provided with blower 5 Gently place back log on burner sup port see Figure 2 The log should fit flat against top of burner support Place two 10 one inch long screws through burner support into the log and tighten 6 Place branch on branch support see Figure 2 Do not allow branch to con tact flame If flame contacts branch soot will be created 7 Reattach scre...

Page 5: ...r pa sec m2 or less with open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to areas such as joints around window and door frames be tween sole plates and floors be tween wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines and at other openings If your home meets all of t...

Page 6: ...ect 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 51 200 Btu Hr maximum the space can support 56 000 Btu Hr actual amount of Btu Hr used The space in t...

Page 7: ...o Crawl Space To Attic AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building Thisfreshairwouldcomefromanadjoining unconfined space When ventilating to an adjoining unconfined space you must pro vide two permanent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 4 You can...

Page 8: ... inches from the front top or sides of the fireplace as a fireplace insert in high traffic areas in windy or drafty areas CAUTION This fireplace cre ateswarmaircurrents Thesecur rents move heat to wall surfaces next to fireplace Installing fire place next to vinyl or cloth wall coverings or operating fireplace where impurities such as to bacco smoke aromatic candles cleaning fluids oil or kerosene...

Page 9: ...ont facing IMPORTANT Noncombustible materials such as brick tile etc may overlap the front facing but should never cover any neces sary openings like louvered slots WARNING Do not allow non combustible materials to cover any necessary openings like lou vered slots WARNING Use only noncom bustible mortar or adhesives when overlapping the front fac ing with noncombustible facing material WARNING Nev...

Page 10: ...o wooden base Hole for 3 wood screw for attaching fireplace to mantel 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...

Page 11: ... Assembly Upper Louver Assembly Brass Screws Blower Bracket Mounting Holes 1 2 Remove Screw Valve Cover Shield Shoulder Screw Removing Valve Cover Shield 1 Open bottom louver assembly by swinging the assembly down see Fig ure 16 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...

Page 12: ...e rear of the valve cover shield and through the rectangular hole in the front of shield see Figure 17 8 Reconnect red wire to switch position 3 Reconnect blue wire to switch posi tion 1 Reconnect green and white wires Figure18 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...

Page 13: ...16 AWG cord for lengths less than 50 feet Follow instructions Removing Valve Cover Shield page 11 then 1 Install a snap bushing found in hard ware kit into one of the holes found on rear of valve cover shield The other hole is for a strain relief clamp not supplied to secure incoming electrical supply 2 Follow steps 2 through 6 in Installing Blower Assembly pages 11 and 12 Also remove black wire f...

Page 14: ...ing into fireplace controls If sediment trap is not installed or is installed wrong fireplace may not run properly Propane LP Supply Tank External Regulator Attaching Wood Base to Solid Floor For attaching base to solid floors concrete or masonry Note Floor anchors and mounting screws areinhardwarepackage Thehardwarepack age is provided with fireplace 1 Drill holes at marked locations using 5 16 d...

Page 15: ...omthefireplace seeFigure24 The flexible gas supply line con nection to the manual shutoff valve should be accessible 4 Apply pipe joint sealant lightly to male threads of gas connector attached to flexible gas line see Figure 25 Con nect flexible gas line to flexible gas line attached to gas regulator of fireplace see Figure 25 5 Check all gas connections for leaks See Checking Gas Connections pag...

Page 16: ...ks at once WARNING Neveruseanopen flame to check for a leak Apply a mixture of liquid soap and water toalljoints Bubblesformingshow a leak Correct all leaks at once CAUTION Make sure external regulator has been installed be tweenpropane LPsupplyandfire place See guidelines under Con necting to Gas Supply page 14 TestPressuresEqualToorLessThan 1 2 PSIG 1 Close manual shutoff valve see Fig ure 26 2 ...

Page 17: ...light pilot with match see Manual Lighting Procedure page 18 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 This fireplace has a safety interlock system Wait one 1 minute before lighting pilot again 8 Turn control knob counterclockwise C clockwise to desired heating level The main burner shoul...

Page 18: ...pliance if service is to be performed Shutting Off Burner Only pilot stays lit Turn control knob clockwise Clockwise to the PILOT position THERMOSTAT CONTROL OPERATION 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 ...

Page 19: ...Pattern WARNING If yellow tipping occurs your fireplace could pro duce increased levels of carbon monoxide If burner flame pattern shows yellow tipping follow in structions at bottom of this page Yellow Tipping Top of Flame About One Inch Above Logs INSPECTING BURNER Thermocouple Pilot Burner Figure 31 Correct Pilot Flame Pattern Actual Pilot May Vary From Illustration Thermocouple Pilot Burner Fi...

Page 20: ...e damaged 8 Control valve damaged REMEDY 1 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 2 Reconnect ignitor cable 3 Replace ignitor cable 4 Replace piezo ignitor 5 Replace ignitor 6 Replace ignitor 1 Turn on gas supply or open manual shutoff valve 2 Turn control knob to PILOT position 3 Press in control knob while in PILOT position 4 Continue holding down control kno...

Page 21: ...eplace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products 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 Whitepowderresidueformingwi...

Page 22: ...tement 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 in OFF p...

Page 23: ...tore or home center may carry com pressed air in a can You can use a vacuum cleaner in the blow position If using com pressed air in a can please follow the direc tions on the can If you don t follow direc tionsonthecan youcoulddamagethepilot assembly 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner pilot and primary air inlet holes on inj...

Page 24: ... HEARTH FIREPLACE VMH26TPA ILLUSTRATED PARTS BREAKDOWN VMH26TPA 12 1 12 2 23 29 43 32 36 38 13 7 8 33 43 11 10 27 4 7 30 1 3 2 9 17 19 6 22 31 21 41 26 42 39 40 16 15 18 24 28 5 34 25 20 35 1 4 35 2 12 24 12 1 14 25 14 43 3 37 ...

Page 25: ...98303 02 Regulator Screw 2 19 104335 01CK Outer Shell Base 1 20 102649 01CJ Branch Support 1 21 099415 09 Gas Regulator 1 22 102875 01 Regulator Bracket 1 23 101381 01 Valve Cover and Piezo 1 24 099387 11 Pilot Tube 1 25 098271 06 Ignitor Cable 1 26 103845 10 Injector 1 27 102458 01CK Front Top Middle 1 28 098249 01 Nut M5 6 29 098522 15 Gas Valve 1 30 102639 01 Baffle 1 31 101628 01 Flexible Conn...

Page 26: ...is product If they can t supply original replacement part s call DESA International s Technical Service Department at 1 800 323 5190 for referral information When calling DESA International have ready your name your address modelandserialnumbersofyourfireplace how fireplace was malfunctioning type of gas used propane LP or natural gas purchase date Usually we will ask you to return the defec tive ...

Page 27: ... or paint Complete assembly instructions in cluded Three sided brass trim kit included CABINET MANTEL WITH BUILT IN HEARTH BASE AND TRADITIONAL SQUARE LEG STYLING Unfinished GM923U Finished GM922F For use with fireplace A hardwood mantel and hearth base offers compact styling and completes the fireplace look Available in a stained or an unfinished ready to stain or paint Oak Veneer over hardwood C...

Page 28: ...ects 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 TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHEPRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTI...

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