Despatch Stackable LCC/LCD User Manual
Page 31

Stackable LCC/LCD Oven
Owner’s Manual
A
SSEMBLY
&
S
ETUP
Version 26
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Copyright © 2010 by Despatch Industries.
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
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retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use.
2. Inspect the filter.
a. Visually inspect the two gaskets to ensure they have not been damaged during
handling.
b. Use a strong lamp to examine the exposed areas of both faces for evidence of
breaks, cracks, or pinholes (Figure 10). If a strong lamp is unavailable, use a
flashlight in a darkened room.
c. Look for visible defects with the light projected along the full length of each
channel created by the separators. Translucent spots may not necessarily
indicate holes or cracks but may simply be variations in thickness of the filter
medium.
d. Check that the adhesive seal around the filter unit faces are complete and
unbroken.
e. Check frame corner joints for adhesive sealing and tightness.
f. Check that gaskets are cemented firmly to the filter frame and that gasket
pieces are undamaged and butted or mated at the joints.
Opened pleats in the filter media are normal and result from the
tempering process.
3. Pull shelves from the oven and set aside (Figure 11).
Figure 10. Example HEPA Filter (Silicone-free) and Close-Up.