Roberts Gorden 200, 350, 150, 400, 250, 300, 225, 175 service manual Combustion Fan Vertical Installation

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COMBAT® UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL

14.4 Combustion Fan Vertical Installation

Rear Panel

Flue Adapter

Hole to Flue Fan screws

Vent Box

Vent Box

Flue

Outlet Adapter

Screws

 

Gasket

 

Flue Fan

 

Disconnect

 

electrical connections

 

at plug in tabs.

Remove screws securing outlet flange to the flue adapter.

Refit in reverse order.

 

Mounting

Vent Box

 

 

 

Plate

 

Gasket

 

Mounting Plate

 

to Vent Box

 

 

Screws

 

 

Gasket

Mounting Plate

 

Air Plate

to Flue Fan

 

 

 

Screws

 

 

Remove screws securing flue fan mounting plate to vent box. Remove screws securing mounting plate to fan.

Refit in reverse. Use new gaskets. Ensure sealed joints.

Ensure mounting plate orifice is clear and not obstructed.

 

UHA[S]

UHA[S]

UHA[S]

MODEL

150 - 175

200 - 300

350 - 400

 

 

 

 

Exhaust Fan P/N

90710405

90710403

90710402

 

 

 

 

IT IS IMPORTANT THAT ONLY THE CORRECT COMBUSTION FAN SPECIFIED FOR EACH MODEL TYPE IS USED WHEN REPLACING THESE ITEMS.

Carry out a start-up after working on or changing a combustion fan. See Page 22, Section 11.

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Contents Combat Page Roberts-Gordon, LLC Page Table of Figures Page Heater Safety Manpower RequirementsInstaller Responsibility Wall TagCorrosive Chemicals National Standards and Applicable CodesMinimum Required Installation Clearances Separated Combustion InstallationCritical Considerations 3.1 Basic Information Clearances to CombustiblesInstallation Clearances and Clearances to Combustibles National Standards and Applicable Codes Major Components 5.1 General SuspensionVent Installation Venting 6.1 VentingUnited States Requirements Canadian RequirementsSeparated Combustion Heaters Models Uhas 150 Unvented OperationHorizontal Venting Vertical VentingVent Material Vent and Roof DetailStandard Vented Heater Common Vertical Vent Termination Concentric Vent Box Horizontal Unvented Installation AIR SupplyBuilding Ventilation Outside Combustion Air SupplyGAS Piping ConnectionsWiring Positioning ThermostatsFan Control Low Voltage Thermostat with One HeaterUhas Series Internal Wiring Diagram TransformerUhas Series Ladder Wiring Diagram Electrical Connection to the Heater Operation and Maintenance LouversElectrical Checks Mechanical ChecksAutomatic Burner Control Sequence Pressure Switch Check Gas RateTurning Off the Heater Complete the Start-UpSimple Troubleshooting Simple Troubleshooting Burner FaultsHeater Operation To Turn the Heater OffUser Instructions Burner Maintenance 12.3 Fan/Motor Assembly MaintenanceHeat Exchanger Maintenance Gas Valve MaintenanceMaintenance Checklist Installation Code and Annual Inspections AllVicinity of the Heater Vehicles and OtherWhen installed Burner ObservationWindow Combustion Fan ScrollTroubleshooting 13.1 General Troubleshooting For Automatic Ignition Burner Systems Result in death or electrical shockTroubleshooting for Flame Supervision System StartTroubleshooting for Combustion Fan Troubleshooting for Gas ValvesConduct start-up procedure as shown on Page 19, Section Replacement Parts Burner ComponentsBurner Compartment Burner InjectorsIgnition Electrode and Flame Probe Description Part Number QtyCombustion Fan Vertical Installation Uhas Axial Fan/Guard/Motor Assembly Limit Switches Removal and ReplacementFan Removal and Replacement To Replace the Fan AssemblySpecifications Standard Models 150 400 Uhas Series Dimension DataGeneral Technical Data Table All Models Technical Data Table All ModelsWarranty is Void if ROBERTS-GORDON will PAY forROBERTS-GORDON will not PAY for Limitations on Authority RepresentativesPage Page Some objects can catch fire or explode when placed
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175, 225, 300, 250, 400 specifications

Roberts Gorden is a recognized leader in the field of heating solutions, particularly renowned for the development of its innovative radiant heating systems. The lineup of models including the Roberts Gorden 250, 300, 400, 150, and 225 features a blend of advanced technology, exceptional efficiency, and versatile applications that cater to various industrial and commercial needs.

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