Vanguard VN6D Owner'S Operation And Installation Manual Download Page 14

14

104274

VENT-FREE NATURAL GAS HEATER

®

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

Burner(s) does not light after ODS/pilot is lit

Delayed ignition of burner(s)

Burner backfiring during combustion

Burner plaque(s) does not glow

Slight smoke or odor during initial operation

Heater produces a clicking/ticking noise
just after burner is lit or shut off

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

REMEDY

1. Clean burner orifice(s) (see Cleaning

and Maintenance, page 12) or replace
burner orifice(s)

2. Replace burner orifice(s)
3. Contact local natural gas company

1. Contact local natural gas company
2. Clean burner orifice(s) (see Cleaning

and Maintenance, page 12) or replace
burner orifice(s)

1. Clean burner orifice(s) (see Cleaning

and Maintenance, page 12) or replace
burner orifice(s)

2. Contact local natural gas company
3. Replace burner
4. Replace gas regulator

1. Replace burner
2. Contact local natural gas company
3. Turn control knob until it locks at de-

sired setting

1. Problem will stop after a few hours of

operation

1. This is common with most heaters. If

noise is excessive, contact qualified ser-
vice person

1. Turn heater off when using furniture

polish, wax, carpet cleaners, or similar
products

POSSIBLE CAUSE

1. Burner orifice(s) is clogged

2. Burner orifice(s) diameter is too small
3. Inlet gas pressure is too low

1. Manifold pressure is too low
2. Burner orifice(s) is clogged

1. Burner orifice(s) is clogged or damaged

2. Inlet gas pressure is too low
3. Burner damaged
4. Gas regulator defective

1. Plaque damaged
2. Inlet gas pressure is too low
3. Control knob set between locked posi-

tions

1. Residues from manufacturing processes

1. Metal expanding while heating or con-

tracting while cooling

1. When heated, vapors from furniture pol-

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

www.desatech.com

Summary of Contents for VN6D

Page 1: ...qualified installer service agency or the gas supplier WARNING This is an unvented gas fired heater Itusesair oxygen fromthe roominwhichitisinstalled Provisions for adequate combustionandventilation...

Page 2: ...utside air ven tilation to run properly This heater has an oxygen depletion sensing ODS safety shutoff system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion...

Page 3: ...ing ap plied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES SAFETY PILOT This heater has a pilot wit...

Page 4: ...ces This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code NFPA 54 ANS Z223 1 Sec tion5 3 AirforCombust...

Page 5: ...urning appliances in the space Vent free heater ________________ Btu Hr Gas water heater ________________ Btu Hr Gas furnace ________________ Btu Hr Vented gas heater ________________ Btu Hr Gas firep...

Page 6: ...tticwillactivatethepowervent Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 12 12 Ventilation Grills into Adjoining Room Option 1 Figure 2 Ventilation Air...

Page 7: ...From Floor FLOOR JOINING WALL INSTALLATION WARNING A qualified ser vice person must install heater Follow all local codes CHECK GAS TYPE Use only natural gas If your gas supply is not natural do not...

Page 8: ...er tighten Note Do not replace front panel at this time Replace front panel after making gas connections and checking for leaks see pages 9 and 10 Figure 7 Popping Open Anchor Wings For Thin Walls Thi...

Page 9: ...mall undue loss of pressure will occur Installationmustincludeaequipmentshutoff valve ground joint union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be up s...

Page 10: ...ther using compressed air or opening main gas valve located on or near gas meter 3 Check all joints from gas meter to equip ment shutoff valve see Figure 14 Ap ply mixture of liquid soap and water to...

Page 11: ...this heater for the first time after hook ing up to gas supply If so the con trol knob may need to be pressed in for 30 seconds This will allow air to bleed from the gas system If control knob does no...

Page 12: ...Figure 19 turn heater off see To Turn Off Gas to Appliance page 11 see Troubleshooting pages 13 through 15 INSPECTING BURNER Figure 19 Incorrect Pilot Flame Pattern Figure 18 Correct Pilot Flame Patt...

Page 13: ...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 Repeat igniting operation...

Page 14: ...local natural gas company 3 Replace burner 4 Replace gas regulator 1 Replace burner 2 Contact local natural gas company 3 Turn control knob until it locks at de sired setting 1 Problem will stop after...

Page 15: ...ionnoticedonwindows POSSIBLE CAUSE 1 Heater burning vapors from paint hair spray glues etc See IMPORTANT statement above 2 Gas leak See Warning statement above 1 Not enough fresh air is available 2 Lo...

Page 16: ...7 2 098594 01 Ignitor Electrode 1 8 099884 01 Burner Assembly 1 9 099056 04 Injector 1 10 099390 01 Tubing Valve to burner 1 11 099387 05 Pilot Tubing Valve to pilot 1 12 099391 02 Tubing Regulator to...

Page 17: ...7 2 098594 01 Ignitor Electrode 1 8 099884 02 Burner Assembly 1 9 099056 06 Injector 2 10 099390 02 Tubing Valve to plaque A 1 11 099387 05 Pilot Tubing Valve to pilot 1 12 099392 01 Tubing Valve to p...

Page 18: ...eplaced under warranty PARTS UNDER WARRANTY Contact authorized dealer from whom you purchased this product If they cannot sup ply original replacement part s call DESA International s Technical Servic...

Page 19: ...___________________ _______________________________________________________________________________________________ ____________________________________________________________________________________...

Page 20: ...o repairing a defective heater 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...

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