Despatch LCC/LCD2-14-4 Oven Series with Protocol 3 - Manual (Page 37)

LCC/LCD2-14 Series Oven Owner’s Manual A SSEMBLY & S ETUP
Version 1 37
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a. Use enough fresh air to remove the smoke, while still being able to achieve and maintain
the necessary temperature.
b. The completion of the burn-off period should be based on the particle level in the oven or
smoke-free exhaust and minimal odor level.
c. Check the filter hold-down nuts after burn-off and tighten as necessary.
d. For best oven particle control, this step should be repeated on a regular basis.

If the equipment must be moved after the burn-off process, use
considerable care.

The binder which strengthened new filters is now burned-off
and the media is very fragile.

Rough handling of either the filter alone or the equipment
with the filter installed is not recommended as it may tear the
media and lead to reduced filter efficiency.

Removal of the filter after heating can also result in damage
to the frame seal, and is only recommended when replacing
the filter.
4.3.3. Filter High Limit Controller
The LCC/LCD2-14 Series have a redundant High Limit device to protect the HEPA filter ( Figure
16 ). The sensor for the High Limit controller is located before the air inlet of the HEPA filter.
The High Limit device is located in the lower compartment of the oven. If oven temperature
exceeds the factory set Filter High Limit temperature, the High Limit controller will trip, shutting
down the heater and protecting the HEPA filter.
4.3.3.1. Reset the High Limit Controller
Determine the cause of the excessive temperature before resetting the High Limit controller.
Under normal operating conditions the Filter High Limit controller should never trip.

Determine the cause of the
excessive temperature before
resetting the High Limit
controller.
To reset the High Limit controller:
1. Remove the access panel to the lower compartment.
The High Limit is located next to the transformer.
2. Press the RESET button on the High Limit controller.
See the MIC1162 reference manual for the operation
of this High Limit.
Figure 16. Typical High Limit controller.
Note RESET button on right.