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

Page 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

39

Image 45

Contents DualAir Page 2005 Page Table of Figures Page Product Approval Clearances to Combustibles Corrosive ChemicalsNational Standards and Applicable Codes Critical Considerations 3.1 Basic Information Minimum Required Installation ClearancesElectrical Supply FlueInstallation Clearances and Clearances to Combustibles Front View Left Version Specifications 4.1 DAT all modelsModel 100 115 Fan Data General Technical Data Table all modelsModel 100 115 2 DAT100 and 115 4 kW motor Heater Installation 5.1 General HandlingShelf Mounting and Suspension Type B22 Appliance Flue Installation 6.1 Flue InstallationAir Intake Terminal Cover Flue ConversionControl Section & Upper Panel Vertical and Horizontal Flue Termination Type B22 Appliance Open Flued Installation Room Sealed InstallationHeaters Installed Within the Heated Space Building Ventilation14, .1 and to ensure that there is Optional Heater Configurations 8.1 Distribution DuctDepartment for recommendations regarding Duct resistance and design. Tel +44 0Connections Gas Connection with Stainless Steel Flex ConnectorRemote Control Remote Frost ThermostatSee Page 17, .3 through Page 18, Section Number See Page 20, Section DAT Wiring Diagram ModelsSite wiring connections shown DAT Site Connections at Main Circuit Board Cooling Coils/Condensers Gas Fired HeaterLouvers Electrical ChecksAutomatic Burner Control Box Sequence Commissioning the Gas Valves Combustion Testing all modelsCommissioning the Gas Valve Set Minimum PressureTurning Off the DualAir Unit Pressure SwitchComplete the Commissioning Instruction to the UserSee Page 25, Section See Page 26, SectionHeater Operation See Page 7, .3 and Page 8, FigureSimple Fault Finding all models Burner Lockout Reset ButtonSimple Fault Finding burner faults Cooling Section Operation13.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Servicing 13.1 Servicing InstructionsGas Control Valve Maintenance all models Conversion Between Gases 14.1 General Burner ConversionGas Valves 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 ContactorBurner Components Gas Valve Replacement all modelsSee Page 5, Section Gas ValveBurner Injectors Burner CompartmentIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter See Page 21, Section Heater Pressure SwitchPressure Switches Coil Pressure SwitchFilter Pressure Switch Ignition Control 16.7.1 S4563C Models 75 toFan Motor Removal Fan Removal and Replacement Combination Fan/Limit Thermostat Page Page Some objects can catch fire or explode when placed

Related manuals

Manual 52 pages 54.64 Kb