Desa 10542 installation manual Thermostat Control Operation

Page 17

OPERATING HEATER

Continued

6.With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of the burner. If needed, keep pressing igni- tor button until pilot lights.

Note: If pilot does not stay lit, refer to Troubleshooting, page 20. 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.

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

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

Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety inter- lock 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 1 and 5.

CAUTION: Do not try to ad- just heating levels by using the equipment shutoff valve.

Thermocouple

Ignitor Electrode

Pilot Burner

Figure 22 - Pilot (actual pilot may vary)

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1.Turn control knob 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)

Turn control knob clockwise to the PI- LOT position.

THERMOSTAT CONTROL

OPERATION

The thermostatic control used on these models differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room temperature. The thermostat adjusts the amount of gas flow to the burner. This increases or decreases the burner flame height. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature. The control knob can be set to any heat level between 1 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 cabinet. This may not always agree with room tempera- ture (depending on housing construction, instal- lation location, room size, open air tempera- tures, etc.). Frequent use of your heater will let you determine your own comfort levels.

MANUAL LIGHTING

PROCEDURE

1.Remove front panel (see Figure 7, page 9).

2.Follow steps 1 through 5 under Lighting In- structions, page 16.

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

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

5.Replace front panel.

6.Follow step 8, under Lighting Instructions, page 16.

113680-01A

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Local Codes Product FeaturesProduct Identification UnpackingProviding Adequate Ventilation AIR for Combustion VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation AIR InstallationCheck GAS Type Ventilation Air From Inside BuildingLocating Heater Installation ItemsInstalling Heater to Wall 20,000 Btu/Hr Model 30,000 Btu/Hr Model10,000 Btu/Hr Model Attaching To Wall Anchor MethodMounting Base Feet to Floor Where required by local code Installing Bottom Mounting ScrewsMounting Heater to Floor with Optional Floor KIT Placing Heater On Mounting BracketTypical Inlet Pipe Diameters Connecting to GAS SupplyPropane/LP Natural GasTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Pressure Testing Heater GAS ConnectionsLighting Instructions Manual Control Models For Your Safety Read Before LightingOperating Heater To Turn OFF GAS To Appliance Manual Lighting ProcedureShutting Off Heater Shutting Off Burner Only pilot stays litThermostat Control Operation Burner Flame Pattern Inpecting HeaterPilot Flame Pattern ODS/PILOT and Burner Cleaning MaintenanceBurner Pilot AIR Inlet CabinetObserved Problem Possible Cause Remedy TroubleshootingReplace burner orifice See Cleaning and Mainte Statement above Gas leak. See Warning10548 10546 10542/10544 Specifications10549 10547 10545 10543Technical Service Service HintsService Publications Replacement Parts Parts Under Warranty10,000 BTU/HR Manual Control Models 10542 Illustrated Parts Breakdown10,000 BTU/HR Manual Control Models Parts List19-1 19-2 19-113 10,000, 20,000, and 30,000 BTU/HR Termostat Models Equipment Shutoff Valve GA5010 AccessoriesFAN Kits GA3210T Base KIT GA4550Parts Centrals Limited Warranty VENT-FREE Residential GAS Heaters Warranty InformationKeep this Warranty

10542 specifications

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