Roberts Gorden DAT90, DAT75, DAT100, DAT115 service manual Fan Removal and Replacement

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SECTION 16: REMOVAL AND REPLACEMENT PARTS

16.8.1 Fan Removal and Replacement

Fan Plate

 

Fan Outlet Flange

 

Securing Screws

 

 

 

Fan Mounting

 

 

Brackets

 

 

(re-use on new fan)

 

 

Bracket Screws

 

 

(re-use on new fan)

 

 

Fan Foot

 

 

Screws

Description

Part Number

 

Torin Fan DDC 270-270

A047

 

Torin Fan DDC 241-241

A049

Mounting Rail

 

 

1.Remove motor leaving the pulley in place. See Page 42, Section 16.8.

2.Remove screws securing the fan outlet flange to the fan panel. (captive nuts)

3.Remove nuts and bolts securing the fan feet to the mounting brackets.

4.Slide the fan out.

(fan is heavy, may need two people)

5.Remove the fan mounting brackets from the fan. Retain components to fit to new fan.

6.Remove the fan pulley by using a hexagonal key to remove the taper lock screws. Use one of these screws to fit into the centre jacking screw and tighten into this position to separate the taper lock bush and the pulley.

7.Refit the components above to the new fan and refit in reverse order.

8.Check belt alignment and tension.

9.Check fan rotation is correct.

16.9Combination Fan/Limit Thermostat 16.9.1 Removal and Replacement

1. Remove wires.

2. Remove the mounting screws.

3.Fit a new thermostat ensuring that the correct temperature setting and type are selected. See Page 7, Section 4.3 through Page 8, Figure 4.4.

4.Reconnect wires and test operation.

43

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Contents DualAir Page Roberts-Gordon, LLC Page Table of Figures Page Product Approval Installer Responsibility Heater SafetyClearances to Combustibles Corrosive ChemicalsCritical Considerations 3.1 Basic Information Minimum Required Installation ClearancesLocation and Suspension All models VentilationInstallation 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 Handling Heater Installation 5.1 GeneralShelf 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 InstallationAIR Supply Building VentilationDepartment for recommendations regarding Optional Heater Configurations 8.1 Distribution DuctDuct resistance and design. Tel +44 0 121 7700Connections GAS PipingRemote Control Wiring and Electrical InformationSee Page 17, .3 through Page 18, Section ModelsNumber See Page 20, Section DAT Wiring DiagramSite wiring connections shown DAT Site Connections at Main Circuit Board Commissioning Automatic Burner Control Box Sequence Commissioning the Gas Valves Combustion TestingCommissioning the Gas Valve Set Minimum PressureTurning Off the DualAir Unit Pressure SwitchComplete the Commissioning Instruction to the UserCommon User Controls Combination Fan/Limit Thermostat Heater OperationSee Page 7, .3 and Page 8, Figure Secondary Limit ThermostatSimple Fault Finding Burner Lockout Reset ButtonSimple Fault Finding burner faults Cooling Section OperationIf you smell gas 13.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Servicing 13.1 Servicing InstructionsGas Control Valve Maintenance Burner Conversion Conversion Between Gases 14.1 GeneralGas 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 ContactorGas Valve Replacement all models Removal and Replacement PartsBurner Components Gas ValveBurner Injectors Burner CompartmentIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter See Page 21, Section Heater Pressure SwitchCoil Pressure Switch Pressure SwitchesFilter Pressure Switch 16.7.1 S4563C Ignition ControlFan Motor Removal Fan Removal and Replacement BREAK-OFF Link Must be Removed Page Some objects can catch fire or explode when placed
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