Desa VN1800ITA, VN1800D, VN2550ITA, VN3000D Inspecting Burner, Pilot Flame Pattern

Page 24

OPERATING HEATER

Models VN1800D and VN3000D

Continued

INSPECTING BURNER

24

			TO TURN OFF GAS TO APPLIANCE


Shutting Off Heater
1.		Turn control knob clockwise Clockwise to the OFF position.
2.		Turn off all electric power to the appliance if service is to be performed.
Shutting Off Burner Only (pilot stays lit)
1.		Turn control knob clockwise Clockwise to the PILOT position.

MANUAL LIGHTING PROCEDURE

1.Follow steps 1 through 5 under Lighting Instructions, pages 21 and 22.

2.With control knob pressed in, strike match. Hold match to pilot until pilot lights.

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 22 shows a correct pilot flame pattern. Figure 23 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

Pilot Burner

Thermocouple

GOOD PILOT

GRH/OV 009

Figure 22 - Correct Pilot Flame Pattern

Thermocouple	Pilot Burner

BAD PILOT

GRH/OV 010

Figure 23 - Incorrect Pilot Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 23

•turn heater off (seeTo Turn Off Gas to Appliance, page 20 [models VN1800ITA and VN2550ITA] or page 24 [models VN1800D and VN3000D])

•see Troubleshooting, pages 24 through 29

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASContents Safety Information Combustion and Ventilation, pages 5 through Local Codes Unpacking Product Features ProductIdentification Fresh AIR For CombustionVentilation Producing Adequate VentilationFresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Ventilation Air from OutdoorsInstalling To Wall Installation ItemsCheck GAS Type Locating HeaterThermostat Sensing Bulb Models VN1800ITA and VN2550ITA OnlyLocating Thermostat Sensing Bulb Attaching Thermostat Sensing BulbInstalling Heater to Wall Mounting BracketRemoving Front Panel Of Heater Methods For Attaching Mounting Bracket To WallMarking Screw Locations Attaching Mounting Bracket To WallInstalling Bottom Mounting Screws Placing Heater On Mounting BracketConnecting to GAS Supply Pressure Testing GAS Supply Piping System Checking GASConnections Servicing. Correct all leaks at oncePressure Testing Heater GAS Connections Checking GAS ConnectionsOperating Heater Operating Heater Lighting InstructionsHeater To Select Heating LevelShutting Off Heater Shutting Off Burner Only pilot stays litExplosion may result causing property damage, personal OperatingIf you do not follow these instructions exactly, a fire or Injury or loss of lifeModels VN1800D and VN3000D LOW MED High Inspecting Burner Pilot Flame PatternBurner Flame Pattern If burner flame pattern is incorrect, as shown in FigureCleaning and Maintenance Trouble Shooting ODS/PILOT and Burner OrificeCabinet Air PassagewaysObserved Possible Remedy Problem Cause TROUBLE- ShootingTrouble Shooting See CleaningIf you smell gas Shut off gas supplyDo not try to light any appliance Ing statement atTechnical Service Service Publications HintsVN1800D VN3000D Replacement Parts AccessoriesIllustrated Parts Breakdown Model VN1800ITAParts List Model VN2550ITA Parts List Model VN1800D Control Position Label Hardware Assembly Model VN3000D Parts List Warranty Information Keep this Warranty