Vanguard VMH26TPB Owner'S Operating & Installation Manual Download Page 21

111043-01B

For more information, visit www.desatech.com

For more information, visit www.desatech.com

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REMEDY

1. Clean burner (see Cleaning and Mainte-

nance, page 19) or replace burner orifice

2. Contact local propane/LP or natural gas

company

1. Contact local propane/LP or natural gas

company

2. Clean burner (see Cleaning and Mainte-

nance, page 19) or replace burner orifice

1. Clean burner (see Cleaning and Mainte-

nance, page 19) or replace burner orifice

2. Replace burner pressure
3. Contact local propane/LP or natural gas

company

4. Replace gas regulator

1. Check burner for dirt and debris. If

found, clean burner (see Cleaning and
Maintenance
, page 19)

2. Replace gas regulator

1. Problem will stop after a few hours of

operation

1. Turn control knob to LO position and

let warm up for a minute

2. Operate burner until air is removed from

line. Have gas line checked by local pro-
pane/LP gas company

3. Observe minimum installation clear-

ances (see pages 8 through 10)

4. Clean burner (see Cleaning and Mainte-

nance, page 19) or replace 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

White powder residue forming within burner
box or on adjacent walls or furniture

POSSIBLE CAUSE

1. Burner orifice is clogged

2. Inlet gas pressure is too low

1. Manifold pressure is too low

2. Burner orifice is clogged

1. Burner orifice is clogged or damaged

2. Burner damaged
3. Low inlet gas pressure

4. Gas regulator defective

1. Not enough air

2. Gas regulator defective

1. Residues from manufacturing processes

1. Turning control knob to HI position

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 furniture pol-

ish, wax, carpet cleaners, etc. may turn
into white powder residue

TROUBLESHOOTING

Continued

TROUBLESHOOTING

Summary of Contents for VMH26TPB

Page 1: ...for correct installa tion and operational procedures For as sistance or additional information con sult a qualified installer service agency or the gas supplier This appliance may be installed in an a...

Page 2: ...ng fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting Due to high temperatures the appliance should be located out of traffic and away from furniture and...

Page 3: ...n adjacent walls or furniture 10 This fireplace needs fresh air ventilation to run properly This fireplace has an Oxygen Depletion Sensing ODS safety shutoff system The ODS shuts down the fireplace if...

Page 4: ...nsing ODS safetyshutoffsystem TheODS pilotisarequiredfeatureforvent free room fireplaces The ODS pilot shuts off the fireplace if there is not enough fresh air PIEZO IGNITION SYSTEM This fireplace has...

Page 5: ...fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where a wall...

Page 6: ...soropen ings add the volume of these rooms to the total volume of the space 2 Multiply the space volume by 20 to determine the maximum Btu Hr the space can support __________ volume of space x 20 Maxi...

Page 7: ...e National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet air i...

Page 8: ...unting Clearances As Viewed From Front of Fireplace Shown Built In the Wall INSTALLATION Continued IMPORTANT Vent free fireplaces add moisture to the air Although this is beneficial installing firepla...

Page 9: ...ning to use blower locate fireplace near an electrical outlet 267 8 267 8 3 4 Off The Floor Minimum 10 1 2 Figure 9 Rough Opening for Installing in Wall WARNING If pre wiring do not connect wiring to...

Page 10: ...replace and set aside 2 Place fireplace on wood base 3 Place mantel around fireplace base assembly 4 Assemble brass trim kit See Assembling Brass Trim page 11 13 16 19 21 2 1 2 6 8 10 Note All vertica...

Page 11: ...s louvers 1 3 4 Screw Wood Base INSTALLATION Continued Shoulder Screws Assembled Brass Trim Hole for 3 wood screw for attaching fireplace to mantel Hole for 3 wood screw for attaching fireplace to woo...

Page 12: ...the assembly down see Figure 17 2 Using short Phillips screwdriver remove the screw under the center of the branch support Rotate valve cover shield clock wise and slide out IMPORTANT Do not remove sh...

Page 13: ...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 BlowerAssembly page 12 Also remove black wire...

Page 14: ...onry drill at least 1 deep 2 Fold floor anchor as shown in Figure 22 3 Insert floor anchor wings first into hole Tap anchor flush to floor 4 Insert mounting screws through base and into floor anchors...

Page 15: ...e Figure 25 Carefully lift up branch support and remove from fireplace see Figure 25 3 Route flexible gas line included from fireplace control to equip mentshutoffvalvethroughsideorrearaccessholesinou...

Page 16: ...leak detection fluid to gas joints Bubbles form ing show a leak 4 Correct all leaks at once Pressure Testing Fireplace Gas Connections 1 Open equipment shutoff valve see Figure 27 2 Open main gas valv...

Page 17: ...ire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service techni cian or...

Page 18: ...ING PROCEDURE OPERATING FIREPLACE Continued OPERATING BLOWER OFF ON 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 p...

Page 19: ...with a mild soap and water mixture Wipe the cabinet to remove dust INSPECTING BURNER Burner Flame Pattern CLEANING AND MAINTENANCE Cleaning Burner Injector Holder and Pilot Air Inlet Hole Cabinet WAR...

Page 20: ...mocouple 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...

Page 21: ...rough 10 4 Clean burner see Cleaning and Mainte nance page 19 or replace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products OBSERVED PROBLEM Burner do...

Page 22: ...1 Gas leak SeeWarning 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 ventil...

Page 23: ...DESA Heating Products Techni cal Service Department at 1 866 672 6040 for referral information When calling DESA Heating Products have ready your name your address model and serial numbers of your fi...

Page 24: ...satech com 24 ILLUSTRATED PARTS BREAKDOWN MODELS VMH26TPB Shown AND VMH26TNB 12 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...

Page 25: ...se 1 20 102649 01CK 102649 01CK Branch Support 1 21 099415 09 099415 10 Gas Regulator 1 22 102875 01 102875 01 Regulator Bracket 1 23 101381 01 101381 01 Valve Cover and Piezo 1 24 099387 11 099387 11...

Page 26: ...Equipment shutoff valve with 1 8 NPT tap THERMOSTATICALLY CONTROLLED BLOWER KIT GA3450T Provides better heat distribution Makes fireplace more efficient Automatically turns off and on as needed BRASS...

Page 27: ...ed College Completed Graduate School 13 Age of Purchaser Under 20 20 29 30 39 40 49 50 59 60 or Over 14 Buyer s total annual household income Under 15 000 15 000 to 19 999 20 000 to 34 999 35 000 to 4...

Page 28: ...111043 01B For more information visit www desatech com For more information visit www desatech com 28 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 Postage Required TAPE TAPE...

Page 29: ...________________________________________________________ _______________________________________________________________________________________________ _______________________________________________...

Page 30: ...as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing...

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