Roberts Gorden DAT115, DAT75, DAT90, DAT100 service manual Gas Control Valve Maintenance

Page 35

SECTION 13: SERVICING

13.5 Gas Control Valve Maintenance

No regular maintenance is required on these devices. To change gas control valves, See Page 36, Step 16.1 and Page 40, Section 16.5.

Do not repair or disassemble on site.

Replace faulty gas valves with genuine

ROBERTS GORDON® replacement parts.

13.6 Flue Fan

The flue fan should not require maintenance. However, If the air pressure switch is causing burner lockout then remove the flue fan from the vent box. See Page 39, Section 16.4. Ensure that the fan is free to run and that the fan wheel is clean.

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Contents DualAir Page Roberts-Gordon, LLC Page Table of Figures Page Product Approval Corrosive Chemicals Heater SafetyInstaller Responsibility Clearances to CombustiblesVentilation Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Location and Suspension All modelsInstallation Clearances and Clearances to Combustibles Front View Left Version Specifications 4.1 DATModel 100 115 Fan Data General Technical Data TableModel 100 115 2 DAT100 and 115 4 kW motor Shelf Mounting and Suspension Heater Installation 5.1 GeneralHandling Flue Conversion Flue Installation 6.1 Flue InstallationType B22 Appliance Air Intake Terminal CoverControl Section & Upper Panel Vertical and Horizontal Flue Termination Type B22 Appliance Building Ventilation Room Sealed InstallationOpen Flued Installation AIR Supply7700 Optional Heater Configurations 8.1 Distribution DuctDepartment for recommendations regarding Duct resistance and design. Tel +44 0 121Connections GAS PipingModels Wiring and Electrical InformationRemote Control See Page 17, .3 through Page 18, SectionNumber See Page 20, Section DAT Wiring DiagramSite wiring connections shown DAT Site Connections at Main Circuit Board Commissioning Automatic Burner Control Box Sequence Set Minimum Pressure Combustion TestingCommissioning the Gas Valves Commissioning the Gas ValveInstruction to the User Pressure SwitchTurning Off the DualAir Unit Complete the CommissioningSecondary Limit Thermostat Heater OperationCommon User Controls Combination Fan/Limit Thermostat See Page 7, .3 and Page 8, FigureCooling Section Operation Burner Lockout Reset ButtonSimple Fault Finding Simple Fault Finding burner faultsIf you smell gas Servicing 13.1 Servicing Instructions Burner Maintenance13.3 Fan/Motor Assembly Maintenance Heat Exchanger MaintenanceGas Control Valve Maintenance Gas Valves Conversion Between Gases 14.1 GeneralBurner Conversion Conduct Commissioning procedure as shown on Page 21, Section Result in death or electrical shock Troubleshooting For Automatic Ignition Burner SystemsStart Troubleshooting for Flame Supervision SystemTroubleshooting for Main Fan Troubleshooting for Solenoid ValvesConduct Commissioning procedure as on Page 21, Section Troubleshooting for Fan ContactorGas Valve Removal and Replacement PartsGas Valve Replacement all models Burner ComponentsBurner Injectors Burner CompartmentIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter See Page 21, Section Heater Pressure SwitchFilter Pressure Switch Pressure SwitchesCoil Pressure Switch Fan Motor Removal Ignition Control16.7.1 S4563C Fan Removal and Replacement BREAK-OFF Link Must be Removed Page Some objects can catch fire or explode when placed
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