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

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DUALAIR® HEATING AND COOLING UNITS INSTALLATION OPERATION AND SERVICE MANUAL

13.5 Gas Control Valve Maintenance (all models)

No regular maintenance is required on these devices. To change gas control valves, See Page 35, Step 16.1 and Page 39, 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 38, 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 2005 Page Table of Figures Page Product Approval Corrosive Chemicals Clearances to CombustiblesNational Standards and Applicable Codes Electrical Supply Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information FlueInstallation Clearances and Clearances to Combustibles Specifications 4.1 DAT all models Front View Left VersionGeneral Technical Data Table all models Model 100 115 Fan DataModel 100 115 2 DAT100 and 115 4 kW motor Handling Heater Installation 5.1 GeneralShelf Mounting and Suspension Air Intake Terminal Cover Flue Installation 6.1 Flue InstallationType B22 Appliance Flue ConversionControl Section & Upper Panel Vertical and Horizontal Flue Termination Type B22 Appliance Heaters Installed Within the Heated Space Room Sealed InstallationOpen Flued Installation Building VentilationDepartment for recommendations regarding Optional Heater Configurations 8.1 Distribution Duct14, .1 and to ensure that there is Duct resistance and design. Tel +44 0Gas Connection with Stainless Steel Flex Connector ConnectionsRemote Frost Thermostat Remote ControlSee Page 17, .3 through Page 18, Section Number DAT Wiring Diagram Models See Page 20, SectionSite wiring connections shown DAT Site Connections at Main Circuit Board Louvers Gas Fired HeaterCooling Coils/Condensers Electrical ChecksAutomatic Burner Control Box Sequence Commissioning the Gas Valve Combustion Testing all modelsCommissioning the Gas Valves Set Minimum PressureComplete the Commissioning Pressure SwitchTurning Off the DualAir Unit Instruction to the UserHeater Operation See Page 26, SectionSee Page 25, Section See Page 7, .3 and Page 8, FigureSimple Fault Finding burner faults Burner Lockout Reset ButtonSimple Fault Finding all models Cooling Section OperationHeat Exchanger Maintenance Burner Maintenance13.3 Fan/Motor Assembly Maintenance Servicing 13.1 Servicing InstructionsGas Control Valve Maintenance all models Burner Conversion Conversion Between Gases 14.1 GeneralGas Valves Conduct Commissioning procedure as shown on Page 21, Section Troubleshooting For Automatic Ignition Burner Systems Result in death or electrical shockTroubleshooting for Flame Supervision System StartTroubleshooting for Solenoid Valves Troubleshooting for Main FanTroubleshooting for Fan Contactor Conduct Commissioning procedure as on Page 21, SectionSee Page 5, Section Gas Valve Replacement all modelsBurner Components Gas ValveBurner Compartment Burner InjectorsIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter Heater Pressure Switch See Page 21, SectionCoil Pressure Switch Pressure SwitchesFilter Pressure Switch 16.7.1 S4563C Models 75 to Ignition ControlFan Motor Removal Fan Removal and Replacement Combination Fan/Limit Thermostat Page Page Some objects can catch fire or explode when placed
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