Desa Tech 18, B, 28 installation manual Pilot

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OPERATING HEATER

4.Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 17. If you don’t smell gas, go to the next step.

5. Turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 16).

Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds. This will allow air to bleed from the gas system.

If control knob does not pop up when released, contact a qualified service person or gas supplier for repairs.

6.With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. The pilot can be seen through the glass panel. If needed, keep pressing ignitor button until pilot lights.

Note: If pilot does not stay lit, refer to Troubleshooting, pages 22 through

25.Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure, page 19.

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

 

Ignitor Electrode

Thermocouple

Pilot Burner

 

Figure 17 - Pilot

Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety interlock system. Wait one (1) minute before lighting pilot again.

8. Turn control knob counterclockwise to desired heating level. The main burner should light. Set control knob to any heat level between HI and LO.

CAUTION

WARNING ICON

G 001

Do not try to adjust heating levels by using the manual shutoff valve.

101808

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASContents Safety Information001 Unpacking Product IdentificationLocal Codes ProductVentilation Fresh AIR ForCombustion Providing 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 OutdoorsCheck GAS Type Installing To WallInstallation Items Locating HeaterThermostat Sensing Bulb Locating Thermostat Sensing BulbAttaching Thermostat Sensing Bulb Removing Front Panel Of Heater Installing Heater to WallMounting Bracket 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 Connections Pressure Testing GAS Supply Piping SystemChecking GAS Servicing. Correct all leaks at oncePressure Testing Heater GAS Connections CheckingFor Your Safety Read Before Lighting Operating HeaterPilot Shutting Off Heater Shutting Off Burner Only pilot stays litInspecting Burner Pilot Flame PatternBurner Flame Pattern Correct Burner Flame PatternCabinet Trouble ShootingODS/PILOT and Burner Air PassagewaysCleaning and Mainte TroubleTROUBLE- Shooting Ing statement at TopTechnical Service Service Hints Service Publications18,000 Btu/Hr 28,000 Btu/Hr Models Parts Not Under Warranty Replacement PartsParts Under Warranty CentralsODS/Pilot Assembly Parts List CGN18TB CGN28TB DescriptionAccessories FAN Kits GA2100A, GA3100 GA3100A, and GA3200TAValve GA5010 101808 Warranty Information Keep this Warranty