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Roberts Gorden CTCU 32, CTCU 27, CTCU 15, CTCU 11, CTCU 22 Troubleshooting for Main Fan, 35 of

Models: CTCU 32 CTCU 7 CTCU 22 CTCU 11 CTCU 15 CTCU 27

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SECTION 15: TROUBLESHOOTING

15.5 Troubleshooting for Main Fan

For your safety and optimum heater performance, use only genuine ROBERTS GORDON® replacement parts.

Conduct Commissioning procedure as shown on Page 21, Section 11.

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Roberts Gorden CTCU 32, CTCU 27, CTCU 15, CTCU 11, CTCU 22, CTCU 7 service manual Troubleshooting for Main Fan, 35 of

Contents

Models CTCU CombatCTCU If you smell gasPage Page Page TABLE OF FIGURES Page 1 of Product ApprovalFigure 1 Front and Back Panel Label Placement SECTION 1 HEATER SAFETY1.1 Manpower Requirements 1.2 Safety Labels and Their PlacementPart Number Figure 2 Side Panel Label Placement3 of 2.1 Clearances to Combustibles SECTION 2 INSTALLER RESPONSIBILITY2.2 Corrosive Chemicals Product Damage Hazard3.1 Required Clearances to Combustibles SECTION 3 CLEARANCES TO COMBUSTIBLESFire Hazard 80 cm is necessary to service Disconnect electric before service Heaters may be installed vented or unventedDANGER SECTION 4 CRITCAL CONSIDERATIONS 4.1 VentilationDimension Data - CTCUA All Models SECTION 5 SPECIFICATIONS 5.1 CTCUA All Models140 for 8 of5.2 General Technical Data Table All Models 6.2 Basic Information SECTION 6 HEATER INSTALLATION 6.1 General6.4 Handling 6.5Suspension and Shelf Mounting11 of Figure 4: Suspension MethodsExisting cabinet screws must be re-used Figure 6 Vertical Louvres Optional Figure 5 Shelf Mounting and Hanging SuspensionSee Page 14, Figure 7 through Page 14, Figure 7.4 Type B22 ApplianceCut/Pinch Hazard Edges are sharp14 of Figure 7 Flue and Roof Detail15 of 8.2 Open Flued Installation 8.1 Room Sealed Installation8.2.1 Heaters Installed Within the Heated Space SECTION 8 AIR SUPPLY9.1 Connections SECTION 9 GAS PIPE WORK18 of 10.2 Remote Controls SECTION 10 WIRING AND ELECTRICAL INFORMATION10.1 Electrical Supply 10.2.1 Burner Controls Thermostat20 of 10.3 CTCUA Wiring Diagram ModelsGas Fired Heater SECTION 11 COMMISSIONING11.1 Pre-CommissionChecks 11.1.1 LouvresFigure 11 Automatic Burner Control Box Sequence 11.4 Begin Commissioning11.4.1 Before Operating the Heater Figure 12 Gas Valve for Heater Models 11.5 Combustion TestingCheck Gas Rate 11.6 Turning Off the Heater11.9 Instruction to the User 11.8 Complete the Commissioningbefore service heater before serviceduring installation SECTION 12 USER INSTRUCTIONS12.5 Simple Fault Finding 12.3.3 Burner Lockout Reset Button12.5.1 Simple Fault Finding Burner Faults 12.3.2 Limit Thermostat13.2 Burner Maintenance Turn off gas and electrical supply before service13.3 Fan/Motor Assembly Maintenance 13.4 Heat Exchanger Maintenance13.7 Maintenance Checklist 13.5 Gas Control Valve Maintenance13.6 Flue Fan The Vicinity of the HeaterBurner Observation when installedWindow Flue Blower Scroll, Wheel14.3 Gas Valves SECTION 14 CONVERSION BETWEEN GASES 14.1 General14.2 Burner Conversion Disconnect electric before service SECTION 15 TROUBLESHOOTINGheater before service before service32 of 15.1 General33 of SECTION 15 TROUBLESHOOTING15.4 Troubleshooting for Solenoid Valves 15.3 Troubleshooting for Flame Supervision SystemNOTE Minimum flame probe current 1 µA DC 34 of35 of 15.5 Troubleshooting for Main FanSECTION 15 TROUBLESHOOTING Burner Components SECTION 16 REMOVAL AND REPLACEMENT PARTS16.1 Gas Valve 16.1.1 Models16.2.1 Burner Injectors 16.2 Burner Compartment16.3 Ignition Electrode and Flame Probe 39 of 16.4 Flue Fan Vertical Installation Models40 of 16.5 Flue Fan Vertical Installation ModelsCarbon Monoxide Hazard 16.6 Pressure Switch16.8.1 Fan Removal and Replacement 16.8 CTCUA Axial Fan/Guard/Motor Assembly16.8.2 To Replace the Fan Assembly 16.7 Ignition ControlPage destratification fans are installed 80 cm is necessary to service heaterFire Hazard close to heater