Manuals / Roberts Gorden / Household Appliance / Furnace

Roberts Gorden UHD[X][S][R] 175, UHD[X][S][R] 300 Heater Safety, Manpower Requirements

Models: UHD[X][S][R] 175 UHD[X][S][R] 150 UHD[X][S][R] 200 UHD[X][S][R] 225 UHD[X][S][R] 350 UHD[X][S][R] 400 UHD[X][S][R] 250 UHD[X][S][R] 300

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SECTION 1: HEATER SAFETY

SECTION 1: HEATER SAFETY

SECTION 1: HEATER SAFETY

Your Safety is Important to Us! This symbol is used throughout the manual to notify you of possible fire, electrical or burn hazards. Please pay special

attention when reading and following the warnings in these sections.

Installation, service and quarterly

inspection of heater must be done by a contractor qualified in the installation and service of gas-fired heating equipment.

Read this manual carefully before installation, operation or service of this equipment.

Heaters are not approved for residential installation. These instructions, the layout drawing, local codes and ordinances and applicable standards that apply to gas piping, electrical wiring, venting, etc. must be thoroughly understood before proceeding with the installation.

Protective gear is to be worn during installation, operation and service. Thin sheet metal parts, including the various venting components, have sharp edges. To prevent injury, the use of work gloves is recommended.

Before installation, check that the local distribution conditions, nature of gas and pressure and adjustment of the appliance are compatible.

1.1 Manpower Requirements

To prevent personal injury and damage to the heater, two persons will be required for installation.

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Roberts Gorden UHD[X][S][R] 175, UHD[X][S][R] 300, UHD[X][S][R] 250, UHD[X][S][R] 400 Heater Safety, Manpower Requirements

Contents

Models UHDXSR 150, 175, 200, 225 250, 300, 350, Installation, Operation & Service ManualCombat UHD-Series Tubular Duct Furnace Standard RangePage 2008 Roberts-GordonLLC TABLE OF CONTENTSPrinted in U.S.A Page TABLE OF FIGURES Page 1.1 Manpower Requirements SECTION 1: HEATER SAFETY2.1 Wall Tag SECTION 2 INSTALLER RESPONSIBILITY2.2 Corrosive Chemicals 2.3 National Standards and Applicable Codes3.2 Manufactured Units • Must be installed in a manner which allowsaccess to all serviceable components 3.4 Minimum Required Installation Clearances3.9 Vent 3.6 Ventilation3.7 Gas Supply 3.8 Electrical Supply4.4 Electrical 4.1 Gas Codes4.2 Aircraft Hangars 4.3 Parking Structures and Repair Garages4.6 High Altitude 5.1.2 Temperature Rise and Pressure Drop Ranges SECTION 5 DUCT HEATER INSTALLATION 5.1 General5.1.1 Minimum Inlet Duct Length Figure 2 Air Flow DirectionCrush Hazard Use 3/8 threaded rod minimum 5.1.3 Air Flow And Temperature Rise Ranges5.2 Suspension Figure 3: Suspension Methods6.2 Venting 6.3 Vent InstallationSECTION 6: VENTING 6.1 Changing Vent and Air Intake Orientation6.6 Vertical Venting 6.3.1Standard Vented Heaters Models UHDXR 150 -6.4 Unvented Operation 6.5 Horizontal Venting6.8 Vent Material 6.7.1 Maximum Vent LengthsFigure 4: Vent and Roof Detail Vent Diameter ModelUHDXR 150 - 90502102Vertical Option Figure 8 Concentric Vent BoxHorizontal Option Description 7.3 Building Ventilation 7.1 Separated Combustion Installation7.2 Unvented Installation SECTION 7: AIR SUPPLY8.1 Connections SECTION 8 GAS PIPINGFigure 10 Gas Connection 9.1 Positioning Thermostats SECTION 9 WIRING9.2 Low Voltage Thermostat with One Heater 9.3 Internal Wiring Diagram 120 VAC FLUE BLOWER TRANSFORMER GAS VALVE 9.4 Ladder Wiring DiagramFLAME SENSOR ELECTRODE 9.5 Electrical Connection to the Heater 10.1.2 Gas Supply SECTION 10: OPERATION AND MAINTENANCE10.1 Pre-Start-UpChecks 10.1.1 Electrical ChecksTOP VIEW Figure 11: Automatic Burner Control SequenceFigure 12: Gas Valve END VIEW10.2.5 External Controls 10.2.3 Pressure SwitchCheck Gas Rate 10.2.4 Turning Off the HeaterSECTION 11 USER INSTRUCTIONS 11.4 Simple Troubleshooting11.4.1 Simple Troubleshooting Burner Faults Figure 13 LED Diagnostic CodesSECTION 12: SERVICING 12.2 Burner Maintenance12.3 Heat Exchanger Maintenance 12.4 Gas Valve MaintenanceVehicles and Other 12.7 Maintenance ChecklistThe Vicinity of the Heater See Page 3, SectionBurner Observation when installedGas Line and Shut-off ValvesSTART SECTION 13 TROUBLESHOOTING 13.1GeneralTROUBLESHOOT ENDS. No 13.3 Troubleshooting for Flame Supervision System START 13.4Troubleshooting for Gas Valves13.5 Troubleshooting for Flue Blower STARTRemove the gas supply pipe at the heater inlet SECTION 14: REPLACEMENT PARTSBurner Components 14.1 Gas ValveEnsure gas tight fitting of injectors 14.2 Burner Compartment14.2.1 Burner Injectors NOTE: Separated combustion14.3 Ignition Electrode and Flame Probe 14.5 Flue Blower 14.4 Heat Exchanger14.7 Ignition Control 14.6 Pressure Switch14.8 Limit Switches 14.8.1 Removal and ReplacementSECTION 15 SPECIFICATIONS 15.1 Dimension Data 15.3 Technical Data Table 15.2 General Technical Data TableU.S.A WARRANTY IS VOID IFROBERTS GORDON WILL PAY FOR ROBERTS GORDON WILL NOT PAY FORPage Type of Installation check one OWNER WARRANTY REGISTRATION CARDAbout the Installer Purchased From if different than installerPage Page Fire Hazard