Despatch LCC/LCD2-14PT-3 Pass Through Series - Manual (Page 35)

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High Limit Alarm with Alarm Silence
This option provides an audible and visual alarm when the temperature exceeds the
high limit setpoint on the control. The alarm horn is located on the right side of the
control panel door. On the front of the control panel door, there is an illuminated (red)
momentary push button switch to silence the alarm horn.
When the chamber temperature exceeds the high limit setting on the control, the heater
will shut down the Alarm Horn will sound and the red push button will illuminate. To
silence the alarm:
1.
Depress the Alarm Silence push button.
The Alarm Horn will be silenced, but the red pilot light on the push
button will remain illuminated.
(optional beacon light-equipped units) The red (top) beacon light will
illuminate, indicating a fault has occurred.
2.
When the high limit condition clears, press reset on the control. See the section
on the Protocol Plus controller for detailed operation.
3.
The heater should be back on and the control should be functioning correctly.
The red pilot light will not be illuminated.
4.
If the high limit trips repeatedly, identify the cause and correct the problem.