COMBAT® UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL
14.6 Ignition Control
The control mounts to the electrical plate. Pull out ignition cable and wiring from board, noting their positions.
Release the four mounting standoffs.
Refit in reverse. Ensure correct location of ignition cable and all other wiring.
14.7 Axial Fan/Guard/Motor Assembly
The axial fan unit for the heater is supplied completely assembled and balanced.
14.8 Limit Switches
14.8.1 Removal and Replacement
1.Remove the electrical connections to the switch.
2.Unscrew the two screws securing the switch.
3.Fit a new switch with two screws. See Page 38, Section 15.3.
4.Reconnect the electrical connections and test operation.
14.7.1 Fan Removal and Replacement
the mounting hardware. |
Removemove the screws |
and washers. |
Description | Part Number | Qty. |
Axial Fan UHA[S] 150 - 175 | 90710416 | 1 |
Axial Fan UHA[S] 200 - 250 | 90710417 | 1 |
Axial Fan UHA[S] 300 - 400 | 90710416 | 2 |
14.7.2 To Replace the Fan Assembly
To replace the fan assembly, reverse the procedure shown above.
•Check that the fan blades are free to rotate before turning on the power to the fan.
•Strictly comply with the color code of the fan wires to ensure correct operation. See Page 16, Section 9.3 wiring diagram.
•Use only genuine ROBERTS GORDON® replacement parts.
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