Audible Alarm N 1 M11 - Process Technology LUFRAN Instruction

Maintenance Procedures (Continued):
M11:
Audible Alarm
The audible alarm is mounted on the front of the unit. It should be checked for proper
operation every 6 months.
Procedure M11-1: Audible Alarm Inspection Procedure:
The audible alarm may be inspected during heater operation. Testing the alarm will not
trip an alarm event in the unit or suspend operation.
1) Access the SYSTEM SERVICE MENU though the navigation panel on the touch
screen interface.
2) Press the TEST SONALERT button on the information panel. The alarm should
sound. This will not trip an alarm event.
3) If the alarm does not sound when the TEST SONALERT button is pressed, the
audible alarm must be replaced.
Procedure M11-2: Audible Alarm Replacement Procedure:
1) Shut down the unit. Turn off main power.
2) Open the front door of the unit.
3) Disconnect the lead wires from the back of the audible alarm.
4) Twist and remove the retaining ring on the front of the audible alarm. Discard the
audible alarm.
5) Install the replacement audible alarm in the mounting hole in the front door of the
unit. Twist and tighten the retaining ring to fix the alarm in place.
6) Attach the lead wires to the back of the audible alarm.
7) Close the front door. Once this procedure is complete, the unit may be restarted.
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