Process Technology LUFRAN Instruction page 88

Maintenance Procedures (Continued):
Procedure M8-2: Cooling Fan Replacement Procedure:
Cooling fan located in heater side of the cabinet:
1) Press the DISABLE HEATER button on the OIP to allow the unit to cool to ambient
inlet temperature. This will also prevent the heaters from engaging.
2) Turn OFF Power to the unit.
3) Open the rear cabinet door.
4) Disconnect the connector plug for the cooling fan from the multi-port sensor/actuator
box. This connector us usually connected to port 2, but refer to your electrical prints
to confirm the correct port number.
5) Disconnect the fan wires from the connector plug.
6) Remove the cooling fan and fan guard from the sidewall of the cabinet.
7) If the replacement fan is not wired to a connector plug, then wire the replacement
fan to the existing connector plug.
8) Attach the replacement fan and fan guard to the side of the cabinet.
9) Connect the connector plug for the cooling fan to the multi-port sensor/actuator box.
10) Remove lockout-tagout items. Power up the unit. Confirm that the replacement fan
is operating.
M-43-01
Revision - Date: 08 – 04/06/15
Verify that the electrical supply is shut off, and
any necessary lockout/tagout devices are
properly installed.
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Lufran Single Outlet Manual