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www.desatech.com

107886-01J

20

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’s phone. Fol-

low the gas supplier’s instructions.

•  If you cannot reach your gas supplier, call the fire department.

IMPORTANT: 

Operating heater where impurities in air exist may create odors. Cleaning supplies, 

paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. 

These fumes may mix with combustion air and create odors.

POSSIBLE CAUSE

1. Turning control knob to posi-

tion 5 when burner is cold

2. Air in gas line

3. Air  passageways  on  heater 

blocked

4. Dirty  or  partially  clogged 

burner orifice

1. When  heated,  vapors  from 

furniture polish, wax, carpet 

cleaner,  etc.,  may  turn  into 

white powder residue

1. Metal expanding while heating 

or contracting while cooling

1. Heater burning vapors from 

paint,  hair  spray,  glues,  etc. 

(see 

IMPORTANT

 statement 

above)

2. Low fuel supply (propane/LP 

gas only)

3. Gas  leak. 

See  Warning 

statement above

1. Not enough fresh air is 

  available

2. Low line pressure

3. ODS/pilot is partially 

  clogged

OBSERVED PROBLEM

Heater produces a whistling noise 

when burner is lit

White  powder  residue  forming 

within burner box or on adjacent 

walls or furniture

Heater produces a clicking/tick-

ing noise just after burner is lit 

or shut off

Heater  produces  unwanted 

odors

Heater  shuts  off  in  use  (ODS 

operates)

REMEDY

1. Turn control knob to position 1 

and let warm up for a minute

2. Operate  burner  until  air  is 

removed from line. Have gas 

line checked by local natural 

or propane/LP gas company

3. Observe minimum installation 

clearances (see Figure 4, page 8)

4. Clean  burner  (see 

Cleaning 

and  Maintenance

,  page  16) 

or replace burner orifice

1. Turn  heater  off  when  using 

furniture polish, wax, carpet 

cleaners or similar products

1. This is common with most heat-

ers. If noise is excessive, contact 

qualified service person

1. Ventilate  room.  Stop  using 

odor causing products while 

heater is running

2. Refill supply tank

3. Locate and correct all leaks 

(see 

Checking  Gas  Connec-

tions,

 page 12)

1. Open window and/or door for 

ventilation

2. Contact local natural or pro-

pane/LP gas company

3. Clean ODS/pilot (see 

Cleaning 

and Maintenance

, page 17) 

Содержание VP20BT

Страница 1: ...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 Immediatelycallyourgassupplierfromaneighbor s ph...

Страница 2: ...ng plate This appliance is not convert ible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer TABLE OF CONTENTS Safety Information 3 Local Codes 4...

Страница 3: ...o high temperatures the appliance should be located out oftraf candawayfromfurniture and draperies Do not place clothing or other ammable material on or near the appliance Never place any objects on t...

Страница 4: ...o cal codes In the absence of local codes use the latest edition of National Fuel Gas Code ANSI Z223 1 NFPA 54 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018...

Страница 5: ...e air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusual...

Страница 6: ...rect vent draws combustion air from the outdoors and vents to the outdoors Example Gas water heater ______________ Btu Hr Vent free heater _____________ Btu Hr Total _____________ Btu Hr 40 000 20 00...

Страница 7: ...t air into attic if attic has a thermostat controlled power vent Heated air entering the attic will activate the power vent Figure 3 Ventilation Air from Outdoors Figure 2 Ventilation Air from Inside...

Страница 8: ...es of the heater as a replace insert in high traf c areas in windy or drafty areas CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing h...

Страница 9: ...Attaching to Wall Stud This method provides the strongest hold Insert mounting screws through mounting bracket and into wall studs Attaching to WallAnchor This method allows you to attach mounting bra...

Страница 10: ...r ush to wall 4 For thin walls 1 2 or less insert red key into wall anchor Push red key to pop open anchor wings see Figure 10 IMPORTANT Do not hammer key For thick walls over 1 2 thick or solid walls...

Страница 11: ...3 For carpeted oors make a small cut with a sharp knife at marked locations prior to drill ing If mounting base to a wood oor drill 1 8 inch diameter hole 3 4 inch deep Do not use anchors in wood oor...

Страница 12: ...in Figure 15 Locate sediment trap where it is within reach for cleaning Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps the...

Страница 13: ...by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter for n...

Страница 14: ...de Pilot Burner Thermocouple OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low these instructions exactly a re or explosion may result causing property damage per son...

Страница 15: ...lbetween1 and 5 Selecting the 5 setting will cause the burner to remain fully on without modulating down in most cases Note The thermostat sensing bulb measures the temperature of air near the heater...

Страница 16: ...e of dust and dirt To clean these parts we recommend using compressed air no greater than 30 PSI Your local computer store hardware store or home center may carry compressed air in a can You can use a...

Страница 17: ...25 x 7 24 25 x 25 75 x 7 Carton 26 25 x 21 25 x 9 26 25 x 29 x 9 Weight pounds Heater 20 28 Shipping 25 33 SERVICE HINTS When Gas Pressure Is Too Low pilot will not stay lit burner will have delayed i...

Страница 18: ...on 4 Air in gas lines when in stalled 5 Depleted gas supply propane LP gas only 6 ODS pilot is clogged 7 Gas regulator setting is not correct OBSERVED PROBLEM When ignitor button is pressed there is n...

Страница 19: ...Burner back ring during combustion Yellow ame during burner combustion Slightsmokeorodorduringinitial operation REMEDY 1 Press in control knob fully 2 AfterODS pilotlights keepcon trol knob pressed in...

Страница 20: ...ly propane LP gas only 3 Gas leak See Warning statement above 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged OBSERVED PROBLEM Heaterproducesawhistlingnoise wh...

Страница 21: ...0 When calling DESA Heating Products have ready your name your address model and serial numbers of your heater how heater was malfunctioning type of gas used propane LP or natural gas purchase date Us...

Страница 22: ...www desatech com 107886 01J 22 ILLUSTRATED PARTS BREAKDOWN MODELS VN20BT VP20BT VN30BT VP30BT 2 3 5 6 8 9 10 10 11 12 13 14 16 18 19 4 7 1 15 17 20...

Страница 23: ...01 Nut M5 2 11 110803 01 110803 02 110803 01 110803 02 ODS Pilot Assembly 1 110186 01 110186 01 110186 01 110186 01 Thermocouple Kit 1 12 103446 01 103446 01 103447 01 103447 01 Burner 1 13 099387 03...

Страница 24: ...intenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of...

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