Figure 19. High-Temp Hepa Filter Burn-Off Curves - Despatch LCC Series Owner's Manual

LCC_LCD1-16/51 Oven Owner's Manual
b. If the equipment is large and the exhaust stack is a permanent service
connection, connect the equipment and exhaust stack before the burn-
off process.
c. If the equipment is small with no permanent exhaust duct required,
arrange a temporary connection out of the clean area that will handle
the maximum temperature of the equipment. Direct the smoke and
odor outside, or to a highly ventilated area.
2. Set the temperature control at the maximum process temperature.
a. Silicone: Ramp at 1.25°C/min to 260°C and soak for 48 hours.
b. Media Pack: Ramp at 1.25°C/min to 260°C and soak for 48 hours.
c. High temperature (Figure 19):
i. Option 1: Ramp at 1.7°C/min (or up to 5°C/min) to 350°C and soak
for 48 hours.
ii. Option 2: Ramp to process temperature and soak for three
consecutive three-hour segments over 48 hours.
Option
1
Option
2
3. Start the fan after making the electrical power connections.
4. Energize the equipment heater.
a. Use enough fresh air to remove the smoke, while still being able to
achieve and maintain the necessary temperature.
©2021 ITW EAE. All rights reserved. Despatch is a registered trademark in the U.S. and other
countries. No part of the contents of this manual may be reproduced, copied or transmitted in any form
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personal use.
Figure 19. High-Temp HEPA Filter Burn-Off
Curves.
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