Roberts Gorden UHD[X][S][R] 75, UHD[X][S][R] 125 specs

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

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Roberts Gorden UHD[X][S][R] 75, UHD[X][S][R] 125 service manual

Contents

Combat Page Roberts-Gordon LLC Page Table of Figures Page Heater Safety Manpower Requirements Installer Responsibility Corrosive ChemicalsNational Standards and Applicable Codes Wall Tag Minimum Required Installation Clearances Critical Considerations 3.1 Basic InformationManufactured Units Clearances to Combustibles Ventilation Electrical SupplyGas Supply Vent National Standards and Applicable Codes High Altitude Duct Heater Installation 5.1 General Temperature Rise and Pressure Drop RangesAir Flow and Temperature Rise Ranges Minimum Inlet Duct Length Shelf Mounting and Suspension Wall Mounting Shelf-Mounting Methods Vent Installation VentingChanging Vent and Air Intake Orientation United States Requirements Standard Vented Heaters Models Uhdxr 75 Separated Combustion Heaters Models Uhdxsr 75Unvented Operation Horizontal Venting Maximum Vent Lengths Vent MaterialReplacing an Existing Heater in a Venting System Vent and Roof Detail Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box UHVK1 Separated Combustion Installation Unvented InstallationAIR Supply Building Ventilation GAS Piping Connections Wiring Low Voltage Thermostat with One HeaterPositioning Thermostats Internal Wiring Diagram L2 L1 Ladder Wiring Diagram Flue Blower Transformer GAS Valve Flame Sensor Electrode Electrical Connection to the Heater Operation and Maintenance Begin Start-Up Before Operating the HeaterPre-Start-Up Checks Electrical Checks END View Pressure Switch Check Gas RateTurning Off the Heater External Controls User Instructions User InstructionsHeater Operation Lighting Instructions 11.4.1 To Turn On Heater Simple Troubleshooting Simple Troubleshooting Burner FaultsTo Turn Heater Off Servicing Maintenance Checklist Vicinity of the HeaterVehicles and Other Objects When installed Ductwork Gas Line and Shut-offValves Burner Observation Troubleshooting 13.1 General Troubleshooting For Automatic Ignition Burner Systems Conduct start-up procedure as shown on Page 23, Section Troubleshooting for Flame Supervision System Troubleshooting for Gas Valves Troubleshooting for Flue Blower Replacement Parts Burner Components Burner Compartment Burner Injectors Ignition Electrode and Flame Probe Flue Blower Vertical Installation Top, remove the blower and mounting plate as above Limit Switches Removal and Replacement Ignition Control Specifications 15.1 Dimension Data TOP View General Technical Data Table Technical Data TablePage Warranty is Void if Roberts Gordon will not PAY forRoberts-Gordon Limitations on Authority RepresentativesPage Owner Warranty Registration Card Page Page Clearances to Combustibles