Roberts Gorden UHD[X][S][R] 125 service manual Ignition Electrode and Flame Probe, Heat Exchanger

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SECTION 14: REPLACEMENT PARTS

14.3 Ignition Electrode and Flame Probe

 

 

Inshot

 

 

Burners

Manual Reset

 

 

Limit Switch

 

 

(Position may vary.)

 

 

 

 

Flame

 

Flame

Probe

 

 

 

Probe

 

Limit

 

 

Switch

 

 

 

 

Burner Compartment

Ignition

 

Front Views

Electrode

 

 

 

 

Ignition

 

 

Electrode

.120 (3 mm) spark

gap

Inshot

Burners

To replace the electrode or flame probe, remove the electrical lead and screw.

Pull out from mounting. Refit in reverse ensuring that the gap to burner is as shown in the front view of the burner compartment.

Description

Part Number

Qty

Spark Electrode

90427411

1

Automatic Ignition Flame Probe

90439300

1

Transformer

90436900K

1

Ignition Module

90434008

1

Inshot Burners UHD[X][S][R] 75

92000002

5

Inshot Burners UHD[X][S][R] 100

92000002

6

Inshot Burners UHD[X][S][R] 125

92000002

7

Limit Switch

90412104

1

Manual Reset Limit Switch (75 only)

90412106

1

14.4 Heat Exchanger

The heat exchanger consists of a six-pass design with 1.5" outer diameter [aluminized steel] [409 stainless steel] tube. The tube plates are made of [aluminized steel] [409 stainless steel]. The tube supports are made of [galvannealed steel] [409 stainless steel].

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Contents Combat Page Roberts-Gordon LLC Page Table of Figures Page Manpower Requirements Heater SafetyWall Tag Installer ResponsibilityCorrosive Chemicals National Standards and Applicable CodesClearances to Combustibles Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Manufactured UnitsVent VentilationElectrical Supply Gas SupplyNational Standards and Applicable Codes High Altitude Minimum Inlet Duct Length Duct Heater Installation 5.1 GeneralTemperature Rise and Pressure Drop Ranges Air Flow and Temperature Rise RangesWall Mounting Shelf Mounting and SuspensionShelf-Mounting Methods United States Requirements Vent InstallationVenting Changing Vent and Air Intake OrientationHorizontal Venting Standard Vented Heaters Models Uhdxr 75Separated Combustion Heaters Models Uhdxsr 75 Unvented OperationVent Material Maximum Vent LengthsReplacing an Existing Heater in a Venting System Vent and Roof Detail Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box UHVK1 Building Ventilation Separated Combustion InstallationUnvented Installation AIR SupplyConnections GAS PipingLow Voltage Thermostat with One Heater WiringPositioning Thermostats L2 L1 Internal Wiring DiagramFlue Blower Transformer GAS Valve Flame Sensor Electrode Ladder Wiring DiagramElectrical Connection to the Heater Electrical Checks Operation and MaintenanceBegin Start-Up Before Operating the Heater Pre-Start-Up ChecksEND View External Controls Pressure SwitchCheck Gas Rate Turning Off the HeaterLighting Instructions 11.4.1 To Turn On Heater User InstructionsUser Instructions Heater OperationSimple Troubleshooting Burner Faults Simple TroubleshootingTo Turn Heater Off Servicing Objects Maintenance ChecklistVicinity of the Heater Vehicles and OtherBurner Observation When installed DuctworkGas Line and Shut-off ValvesTroubleshooting 13.1 General Conduct start-up procedure as shown on Page 23, Section Troubleshooting For Automatic Ignition Burner SystemsTroubleshooting for Flame Supervision System Troubleshooting for Flue Blower Troubleshooting for Gas ValvesBurner Components Replacement PartsBurner Injectors Burner CompartmentIgnition Electrode and Flame Probe Top, remove the blower and mounting plate as above Flue Blower Vertical InstallationIgnition Control Limit Switches Removal and ReplacementTOP View Specifications 15.1 Dimension DataTechnical Data Table General Technical Data TablePage Limitations on Authority Representatives Warranty is Void ifRoberts Gordon will not PAY for Roberts-GordonPage Owner Warranty Registration Card Page Page Clearances to Combustibles