Desa VP1000BTA installation manual Inspecting Burner, Cleaning and Maintenance

Page 12

® BLUE FLAME 10,000 BTU

PROPANE/LP GAS HEATER

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 18 shows a correct pilot flame pat- tern. Figure 19 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.

If pilot flame pattern is incorrect, as shown in Figure 19

turn heater off (see To Turn Off Gas to Appliance, page 11)

seeTroubleshooting, pages 13 through 15

Pilot Burner

Thermocouple

Figure 18 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

NOTICE: Do not mistake orange flames with yellow tipping. Dust or other fine particles enter the heater and burn causing brief patches of orange flame.

If burner flame pattern is incorrect, as shown in Figure 21

turn heater off (see To Turn Off Gas to Appliance, page 11)

seeTroubleshooting, pages 13 through 15

1/2 GLASS HEIGHT

Figure 20 - Correct Burner Flame Pattern

Yellow Tipping

1/2 GLASS HEIGHT

Figure 21 - Incorrect Burner Flame Pattern

CLEANING AND MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CLEANING BURNER PILOT AIR INLET HOLE

We recommend that you clean the unit every 2,500hoursofoperationoreverythreemonths.

We also recommend that you keep the burner tube and pilot assembly clean and free 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 vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2.Inspect burner, pilot for dust and dirt.

3.Blow air through the ports/slots and holes in the burner.

Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 22). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.

Pilot Air Inlet

Hole

Figure 19 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the glass panel height.

CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

Pilot Assembly

Figure 22 - Pilot Inlet Air Hole

CABINET

Air Passageways

Use a vacuum cleaner or pressurized air to clean.

WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. If burner flame pat- tern shows yellow tipping, see the following instructions.

ODS/PILOT AND BURNER

Exterior

• Use a soft cloth dampened with a mild

ORIFICE

soap and water mixture. Wipe the cabi-

• Use a vacuum cleaner, pressurized air,

net to remove dust.

or small, soft bristled brush to clean.

 

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Contents Blue Flame VENT-FREE PROPANE/LP GAS Heater What to do if YOU Smell GASSafety Information PROPANE/LP GAS HeaterProduct Features Product IdentificationLocal Codes UnpackingAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceAIR for Combustion 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 Installation Installing Two Mounting Screws Installing Bottom Mounting ScrewPlacing Heater On Mounting Screws Removing Front Panel Of HeaterConnecting to GAS Supply External Regulator With Vent Pointing DownFor Your Safety Read Before Lighting Pressure Testing Heater Gas ConnectionsPressure Testing Gas Supply Piping System Operating HeaterManual Lighting Procedure Lighting InstructionsTo Turn OFF GAS To Appliance Thermostat Control OperationCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Illustrated Parts Breakdown Parts List VP1000BTASpecifications Replacement PartsTechnical Service Service Hints104266 Warranty Information