Despatch LCC1-51-3 - Manual (Page 27)

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•
Check the corner joints of the frame for adhesive sealing and
tightness.
•
Check that the gaskets are cemented firmly to the filter frame and that
the gasket pieces are butted or mated at the joints.
3.
Pull the shelf out from the oven and set it aside.
4. Loosen the two screws at the upper and lower corners of the right rear of the
chamber. Pull out the shelf support/duct as a single unit and set it aside.
5.
Note the position of the threaded rods behind the duct assembly on the right
side. The HEPA filter will be fitted over these rods.
6.
Remove the brass nuts and washers from the rods that are temporarily locking
the rods to the oven wall. These nuts will be reused to hold the filter in place.
(LCC1-16 only: Remove filter frame to be reinstalled after filter.)
7.
(LCC1-16 only:) Remove the HEPA filter (shipped separately) from its container.
NOTE: The seal side goes toward the wall of the oven. Place it inside the
chamber and install filter mounting frame over rods. Push filter tight to rear wall
with mounting frame.
(LCC1-51 only:) Remove the HEPA filter (shipped separately) from its container.
NOTE: The seal side goes toward the wall of the oven. Place it inside the
chamber and install filter mounting angles (shipped separately) over rods. Push
filter tight to rear wall with mounting angles.
8.
Reinstall the washers and brass nuts to tighten the filter frame down. Tighten the
four nuts alternately for even tightness. Be careful not to over tighten. Correct
installation torque is 28 +/- 3 in-lbs. Be sure to compress the gasket evenly and
equally at all points with the filter frame completely covering the opening.
9.
Reinstall the shelf support/duct assembly using the two screws removed earlier.
10.
Reinstall the oven shelf.
HEPA Filter Burn-off
The burn-off process will take place in any piece of equipment where a new HEPA filter
NOTE: Make certain that power is disconnected from the
oven before removing or replacing the HEPA filter.