Roberts Gorden 350, 200, 150, 400, 300, 175 Fan Removal and Replacement, To Replace the Fan Assembly

Page 43

SECTION 14: REPLACEMENT PARTS

14.9.1 Fan Removal and Replacement

the mounting hardware.

Removemove the screws

and washers.

Description

Part Number

Qty.

Axial Fan UHA[S] 150 - 175

90710416

1

Axial Fan UHA[S] 200 - 250

90710417

1

Axial Fan UHA[S] 300 - 400

90710416

2

14.9.2 To Replace the Fan Assembly

To replace the fan assembly, reverse the procedure shown above.

Check that the fan blades are free to rotate before turning on the power to the fan.

Strictly comply with the color code of the fan wires to ensure correct operation.

See Page 16, Section 9.3 wiring diagram.

Use only genuine replacement parts sold and supplied by Roberts-Gordon

14.10 Limit Switches

14.10.1 Removal and Replacement

1.Remove the electrical connections to the switch.

2.Unscrew the two screws securing the switch.

3.Fit a new switch with two screws.See Page 39, Section 15.3.

4.Reconnect the electrical connections and test operation.

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Contents Combat Page Roberts-Gordon LLC Page Table of Figures Page Manpower Requirements Heater SafetyNational Standards and Applicable Codes Installer ResponsibilityWall Tag Corrosive ChemicalsClearances to Combustibles Minimum Required Installation ClearancesSeparated Combustion Installation Critical Considerations 3.1 Basic InformationInstallation Clearances and Clearances to Combustibles National Standards and Applicable Codes Suspension Major Components 5.1 GeneralCanadian Requirements Vent InstallationVenting 6.1 Venting United States RequirementsVertical Venting Separated Combustion Heaters Models Uhas 150Unvented Operation Horizontal VentingVent and Roof Detail Vent MaterialStandard Vented Heater Common Vertical Vent Termination Concentric Vent Box Horizontal Outside Combustion Air Supply Unvented InstallationAIR Supply Building VentilationConnections GAS PipingFan Control WiringLow Voltage Thermostat with One Heater Positioning ThermostatsGAS Valve Uhas Series Internal Wiring DiagramUhas Series Ladder Wiring Diagram Electrical Connection to the Heater Mechanical Checks Operation and MaintenanceLouvers Electrical ChecksAutomatic Burner Control Sequence Complete the Start-Up Pressure SwitchCheck Gas Rate Turning Off the HeaterLighting Instructions 11.3.1 To Turn On Heater Simple TroubleshootingSimple Troubleshooting Burner Fault Heater OperationUser Instructions Gas Valve Maintenance Burner Maintenance12.3 Fan/Motor Assembly Maintenance Heat Exchanger MaintenanceObjects Maintenance ChecklistVicinity of the Heater Vehicles and OtherFlue Blower Scroll, Wheel When installedBurner Observation WindowTroubleshooting 13.1 General Result in death or electrical shock Troubleshooting For Automatic Ignition Burner SystemsTroubleshooting for Flame Supervision System Troubleshooting for Flue Blower Troubleshooting for Gas ValvesConduct start-up procedure as shown on Page 19, Section Burner Components Replacement PartsBurner Injectors Burner CompartmentDescription Part Number Ignition Electrode and Flame ProbeLouvers and Louver Spring ExchangerAssemblyUhas Ignition Control Axial Fan/Guard/Motor AssemblyTo Replace the Fan Assembly Fan Removal and ReplacementLimit Switches Removal and Replacement Standard Models 150 400 Uhas Series Dimension Data SpecificationsTechnical Data Table All Models General Technical Data Table All ModelsPage Limitations on Authority Representatives Warranty is Void ifROBERTS-GORDON will PAY for ROBERTS-GORDON will not PAY forPage Page Page Page Fire Hazard
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225 250, 175, 300, 400, 150 specifications

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