Process Technology LUFRAN Instruction page 76

Maintenance Procedures (Continued):
Procedure M3-2: Leak Detector Replacement Procedure:
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 electrical connector for the leak detector from the multi-port
sensor/actuator box located on the back panel. This connector us usually connected
to port 3, but refer to your electrical prints to confirm the correct port number.
5) If needed, remove the electrical connector from the leak detector to ease in the
wiring removal from the cabinet. If necessary, cut and remove any cable ties that
hold the leak detector wiring.
6) Loosen and remove the fitting that holds the leak detector to the mounting bracket.
7) Slide the leak detector from the fitting on the bracket.
8) Install the new leak detector into the fitting.
9) Route the new wiring in the same pattern as the previous leak detector wiring.
10) Connect the leak detector plug to multi-port sensor/actuator box.
12) Restore power to the unit.
13) Perform procedure M3-1: leak detector inspection procedure.
14) If the sensor passes the inspection, the unit may be restarted and returned to
service.
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