Despatch Stackable LCC/LCD - Manual (Page 33)

Stackable LCC/LCD Oven Owner’s Manual A SSEMBLY & S ETUP
Version 26 33
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8. This step for the LCC1-51-3 only:
a. Remove the HEPA filter (shipped separately) from its container.
b. NOTE: The seal side goes toward the wall of the oven.
i. Place the filter inside the chamber and install filter mounting angles
(shipped separately) over rods.
ii. Push filter tight to rear wall with mounting angles.
9. Reinstall the washers and brass nuts to tighten the filter frame down.
a. Tighten the four nuts alternately for even tightness (Correct installation torque
is 28 +/- 3 in-lbs. Be careful not to over tighten.
b. Correct installation torque is 28 +/- 3 in-lbs.
c. Be sure to compress the gasket evenly and equally at all points with the filter
frame completely covering the opening.
10. Reinstall the inner casing assembly using the three screws removed earlier (Step 4).
11. Reinstall the oven shelf.
4.3.1. HEPA Filter Burn-Off
4.3.1.1. HEPA Filter Burn-Off Process
The burn-off process takes place in any equipment where a new HEPA filter is used at
temperatures above 180°C / 356°F. Expect smoke, possibly a pungent odor and a light
residue on interior surfaces. This results from oxidation of the binder. Most of the binder
will leave the filter after running at a temperature of 260°C/500°F for 48 hours. Check
the oven for particles or the exhaust for smoke and odor to determine that the process is
finished.

While the Termikfil 2000 filter has undergone tempering
treatment at the factory, smells and/or fumes may be released
during the first use at temperature.
4.3.1.2. Location of HEPA Filter Burn-Off Process
Select a location for the burn-off process where generated smoke and odor will be
ventilated with the least amount of interruption and inconvenience. Ideally this will be in
the final location for the oven. However, it may be a receiving dock, some well ventilated
space or even outside if the weather is acceptable. If this location is a very clean area, pay
special attention to an exhaust hook-up that fully captures the smoke and odor produced.
The post-Burn-off cleaning (that is, oven wipe down) may also generate dust. So take
care if in a clean room.