Manuals / Roberts Gorden / Household Appliance / Fan

Roberts Gorden DAT90, DAT75, DAT100, DAT115 Heater Pressure Switch, See Page 21, Section

Models: DAT115 DAT100 DAT90 DAT75

1 52

Download 52 pages 20.28 Kb

Page 45

Image 45

SECTION 16: REMOVAL AND REPLACEMENT PARTS

16.5 Heater Pressure Switch

Pull off 3 way connector. Spring open plastic clips of mounting cradle. Replace with correct type of pressure switch for model. The pressure switches are colour coded for each pressure setting.

Carry out a commission after working on or changing a pressure switch.

See Page 21, Section 11.

WARNING

Carbon Monoxide Hazard

Use correct pressure switch specified for each model.

Use of incorrect pressure switch could cause unsafe condition.

Failure to follow these instructions can result in death or serious injury.

Pressure Switch	75	90	100	115
RG P/N	90439811	90439807	90439811	90439807
Colour Code	grey	brown	grey	brown

Page 45

Image 45

Roberts Gorden DAT90, DAT75, DAT100, DAT115 service manual Heater Pressure Switch, See Page 21, Section

Contents

DAT100 DAT115 DualAirIf you smell gas Quality in Any LanguagePage 2005 TABLE OF CONTENTSPage TABLE OF FIGURES Page Product Approval SECTION 2 INSTALLER RESPONSIBILITY SECTION 1 HEATER SAFETY2.1 Clearances to Combustibles 2.2 Corrosive Chemicals3.7 Electrical Supply 3.3 Minimum Required Installation Clearances3.8 Flue 3.9 Coil Condense Drain80 cm is necessary to service heater SECTION 4 SPECIFICATIONS 4.1 DAT all models Front ViewFront View Left Version 4.2 General Technical Data Table all models 4.3Technical Data Table - Heater Section all models Appliance Category II 2H/L 3B/P 4.4.2 DAT100 and 115 4 kW motor 5.2 Handling SECTION 5 HEATER INSTALLATION 5.1 General5.3 Shelf Mounting and Suspension Figure 3 Suspension Methods6.3 Type B22 Appliance terminal. See Page 12, FigureSee Page 10, Figure 4 through Page 12, Figure 6.3.1 Air Intake Terminal CoverFigure 6 Alternate Figure 5 Control Section & Upper PanelMasterflash Roof TerminalMetal Sleeve 25 mm air gap to combustible material Flue7.2 Open Flued Installation 7.1 Room Sealed Installation7.2.1 Heaters Installed Within the Heated Space SECTION 7 AIR SUPPLYduct resistance and design. Tel +44 Department for recommendations regarding494425 Figure 10 Ducting9.1 Connections SECTION 9 GAS PIPING10.2 Remote Control SECTION 10 WIRING AND ELECTRICAL INFORMATION10.1 Electrical Supply 10.2.1 Remote Frost ThermostatRelay/Function TerminalOperation Number10.4 DAT Wiring Diagram Models See Page 20, SectionSITE WIRING 10.5 DAT Wiring Diagram Models Site wiring connections shownSECTION 10 WIRING AND ELECTRICAL INFORMATION 10.6 DAT Site Connections at Main Circuit Board Cooling Coils/Condensers SECTION 11 COMMISSIONING Gas Fired Heater11.1 Pre Commission Checks 11.1.1 LouversFigure 13 Modureg Gas Valve Figure 12 Automatic Burner Control Box SequenceRequired Incoming Signals Signals Output By Control11.5 Combustion Testing all models two adjustments. See Page 22, Figure11.4.2 Commissioning the Gas Valves See Page 22, Figure11.6 Turning Off the DualAir Unit Pressure Switch11.7 External Controls 11.8 Complete the CommissioningSee Page 25, Section See Page 26, Section12.2 Heater Operation 12.2.1 Warning Lights12.6 Simple Fault Finding all models 12.3.3 Burner Lockout Reset Button12.6.1 Simple Fault Finding burner faults 12.4 Cooling Section Operation13.3 Fan/Motor Assembly Maintenance 13.2 Burner Maintenance13.4 Heat Exchanger Maintenance SECTION 13 SERVICING 13.1 Servicing InstructionsReplace faulty gas valves with genuine 13.5 Gas Control Valve Maintenance all modelsROBERTS GORDON replacement parts 13.6 Flue Fan Do not repair or disassemble on siteSECTION 14 CONVERSION BETWEEN GASES 14.1 General 14.2 Burner Conversion14.3 Gas Valves Start SECTION 15 TROUBLESHOOTING 15.1 Generalvalues, then reverse the test leads START 15.3 Troubleshooting for Flame Supervision SystemTROUBLESHOOT ENDS damaged? Is the flame probe15.5 Troubleshooting for Main Fan 15.4 Troubleshooting for Solenoid ValvesSTART START15.6 Troubleshooting for Fan Contactor STARTTROUBLESHOOT ENDS 16.1.1 Gas Valve Replacement - all models SECTION 16 REMOVAL AND REPLACEMENT PARTSBurner Components See Page 5, Section16.2.1 Burner Injectors 16.2 Burner CompartmentEnsure gas tight fitting of injectors Ensure correct alignment with burners16.3 Ignition Electrode and Flame Probe 16.4 Flue Fan See Page 21, Section 16.5 Heater Pressure SwitchCoil Pressure Switch 16.6.2 Pressure SwitchesFilter Pressure Switch Figure 18 Cooling Coil Safety Devices16.7 Ignition Control 16.7.1 S4563C Models 75 to16.8 Fan Motor Removal 16.8.1 Fan Removal and Replacement Figure 19 Combination Fan/Limit Thermostat Fire HazardHeat exchanger damage may result Page Page 80 cm is necessary to service heater Installation ClearancesFire Hazard close to heater