Roberts Gorden CTCU 27, CTCU 15, CTCU 11 Ignition Control, CTCUA Axial Fan/Guard/Motor Assembly

COMBAT® CTCU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL

16.7 Ignition Control

This control is mounted at the bracket plate. Pull out the three cable connectors. Pull out ignition cable, ignition earth and flame probe cable noting their positions. Located behind the bracket ignition control are the white mounting pins. Depress locking tab while gently pulling bracket away from mounting pins to disengage the bracket. Remove the screws. Refit in reverse. Ensure correct location of ignition and flame probe cables.

16.8 CTCUA Axial Fan/Guard/Motor Assembly

The axial fan unit for the CTCUA heater is

supplied completely assembled and balanced.

16.8.1 Fan Removal and Replacement

Remove the screws

and washers.

16.9Fan and Limit Thermostats 16.9.1 Removal and Replacement

1. Pull off the electrical connections to the thermostat

2.Unscrew the two screws securing the thermostat

3.Fit a new thermostat with two screws ensuring that the correct temperature setting and type are selected.

See Page 9, Section 5.3.

4.Reconnect the electrical connections and test operation.

Description	Part Number
Axial Fan CTCU-7	11111910
Axial Fan CTCU-11	11111911
Axial Fan CTCU-15	11111920
Axial Fan CTCU-22	11111921
Axial Fan CTCU-27/32	11111922

16.8.2 To Replace the Fan Assembly

To replace the fan assembly, reverse the procedure shown above. Fit rubber washers to the guard mountings to reduce vibration.

•Check that the fan blades are free to rotate before turning on the power to the fan.

•Strictly comply with the colour code of the fan wires to ensure correct operation. See Page 20, Section 10.3 wiring diagram.

•Use only genuine replacement parts sold and supplied by Roberts-Gordon.

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