background image

20

103449

UNVENTED NATURAL GAS LOG HEATER

DESA INTERNATIONAL

TROUBLESHOOTING

Continued

REMEDY

1. Contact local natural gas company
2. Clean burner(s) (see Cleaning and Main-

tenance, page 18) or replace burner
orifice(s)

3. Contact qualified service person
4. Replace burner orifice(s)
5. Put remote selector in ON position
6. See Wiring Diagram, page 22

1. Contact local natural gas company
2. Clean burner(s) (see Cleaning and Main-

tenance, page 18) or replace burner
orifice(s)

3. Contact qualified service person

1. Clean burner (see Cleaning and Mainte-

nance, page 18) or replace burner orifice

2. Replace damaged burner
3. Replace gas control

1. Check burner(s) for dirt and debris. If

found, clean burner(s) (see Cleaning and
Maintenance
, page 18)

2. Replace gas control

1. Problem will stop after a few hours of

operation

1. Refer to Air for Combustion and Venti-

lation requirements (pages 4 through 6)

1. Turn control knob to LO position and

let warm up for a minute

2. Operate burners until air is removed

from line. Have gas line checked by lo-
cal natural gas company

3. Observe minimum installation clear-

ances (see pages 7 through 9)

4. Clean burners (see Cleaning and Main-

tenance, page 18) or replace burner
orifice(s)

1. Turn heater off when using furniture

polish, wax, carpet cleaners, or similar
products

1. Replace 9-volt batteries in receiver and

remote control

OBSERVED PROBLEM

One or both burners do not light after ODS/
pilot is lit

Delayed ignition of one or both burners

Burner backfiring during combustion

Yellow flame in front burner during burner
combustion

Slight smoke or odor during initial operation

Moisture/condensation noticed on windows

Heater produces a whistling noise when
burners are lit

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

Remote does not function

POSSIBLE CAUSE

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

3. Mislocated crossover tube
4. Burner orifice(s) diameter is too small
5. Remote selector in OFF position
6. Wire disconnected from gas control

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

3. Mislocated crossover tube

1. Burner orifice is clogged or damaged

2. Damaged burner
3. Gas control defective

1. Not enough air

2. Gas control defective

1. Residues from manufacturing processes

and logs curing

1. Not enough combustion/ventilation air

1. Turning control knob to HI position

when burners are cold

2. Air in gas line

3. Air passageways on heater blocked

4. Dirty or partially clogged burner orifice(s)

1. When heated, vapors from furniture pol-

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

1. Battery is not installed. Battery power

is low

www.desatech.com

Содержание VS18NR

Страница 1: ...roperty damage Refer to this manual for cor rect installation and operational proce dures For assistance or additional in formation consult a qualified installer service agency or the gas supplier WAR...

Страница 2: ...with a fire placescreeninplace Makesurefireplace screen is closed before running heater 8 This log heater is designed to be smoke less If logs ever appear to smoke turn offheaterandcallaqualifiedservi...

Страница 3: ...ed to ANS Z21 11 2 standard for unvented heaters State and local codes in some areas prohibit the use of vent free heaters This heater may also be operated as a vented decorative ANS Z21 60 product by...

Страница 4: ...rating of one perm 6x10 11 kg per 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 ar...

Страница 5: ...ances 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 max...

Страница 6: ...d Crawl Space To Crawl Space To Attic Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 Ventilation Grills Into Adjoining Room Option 1 12 12 Figure 2 Ventila...

Страница 7: ...l codes INSTALLATION CHECK GAS TYPE Use only natural gas If your gas supply is not natural gas do not install heater Call dealer where you bought heater for proper type heater INSTALLATION AND CLEARAN...

Страница 8: ...ntel If not using a mantel follow the information below You must have noncombustible material s above the fireplace opening Noncombus tible materials such as slate marble tile etc must be at least 1 2...

Страница 9: ...pening Underside of Mantel Shelf Mantel Shelf 12 A 20 241 2 271 2 30 All minimum distances are in inches 2 1 2 6 8 10 Minimum Noncombustible Material 8 Min 12 15 18 All minimum distances are in inches...

Страница 10: ...rsarelevel Ifheaterisnotlevel heaterwill not work properly Area of Various Standard Round Flues Diameter ins Area sq ins 5 20 sq inches 6 29 sq inches 7 39 sq inches 8 51 sq inches INSTALLING DAMPER C...

Страница 11: ...ed Purchase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 23 Minimum inlet pressure for purpose of input adjustment Figure 13 Gas Connection Tee Joint...

Страница 12: ...ts individual manual shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pipe where manual shutoff valve was connected 3...

Страница 13: ...ure 16 Push back of logs flush with metal grate bar Note 18 model has only one front log 2 Rest bottom middle log 2 behind metal posts on front burner Make sure the grooves in the bottom of the log fi...

Страница 14: ...re to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not us...

Страница 15: ...em etc For wall thermostat operation follow in struction supplied with thermostat acces sory GWMT1 For wall switch operation followinstructionssuppliedwithGWMS2 OPTIONAL REMOTE OPERATION NOTICE You mu...

Страница 16: ...Off with the Hand Held Remote Unit Figure 24 Thermostat Hand Held Remote Control Unit Selections GHRCT only The log heater will automatically cycle between pilot and the heat setting that has been se...

Страница 17: ...e pattern Theincorrectpilotflameisnottouch ing the thermocouple This will cause the thermocouple to cool When the thermo couple cools the heater will shut down If pilot flame pattern is incorrect as s...

Страница 18: ...ware store 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 f...

Страница 19: ...D PROBLEM When ignitor button is pressed there is no spark at ODS pilot When ignitor button is pressed there is spark at ODS pilot but no ignition ODS pilot lights but flame goes out when control knob...

Страница 20: ...en using furniture polish wax carpet cleaners or similar products 1 Replace 9 volt batteries in receiver and remote control OBSERVED PROBLEM One or both burners do not light after ODS pilot is lit Del...

Страница 21: ...SIBLE CAUSE 1 Metal expanding while heating or con tracting while cooling 1 Heater burning vapors from paint hair spray glues cleaners chemicals new carpet etc See IMPORTANT state ment above 2 Low fue...

Страница 22: ...r TECHNICAL SERVICE You may have further questions about in stallation operation or troubleshooting If so contact DESA International s Technical Service Department at 1 800 DESA LOG 1 800 337 2564 You...

Страница 23: ...LL MOUNT ON OFF SWITCH GWMS2 Not Shown For all models Allows the gas log heater to be turned on and off with a wall switch WALL MOUNT THERMOSTAT SWITCH GWMS1 Not Shown For all models The desired comfo...

Страница 24: ...URAL GAS LOG HEATER DESA INTERNATIONAL ILLUSTRATED PARTS BREAKDOWN VARIABLE CONTROL CFS18NR VS18NR VS24NR VS30NR 8 9 10 11 8 8 12 13 23 14 26 27 6 6 16 19 31 21 22 29 30 17 24 20 15 28 18 10 1 10 2 6...

Страница 25: ...271 03 Ignitor Cable 1 14 102445 01 102445 01 102445 01 Piezo Ignitor 1 15 103588 01 103588 01 103588 01 Heat Shield 1 16 103782 01 103782 01 103782 01 Valve Bracket 1 17 M12461 26 M12461 26 M12461 26...

Страница 26: ...such other costs related to repairing a defective heater will be the responsibility of the owner TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHEPRODUCT THIS EXPRESS WARRANTY EX...

Отзывы: