Despatch LCC/LCD2-14-4 Oven Series with Protocol 3 - Manual (Page 31)

LCC/LCD2-14 Series Oven Owner’s Manual A SSEMBLY & S ETUP
Version 1 31
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4.3. HEPA Filter Installation
Not all LCC/LCD2-14 ovens come equipped with a HEPA filter. This HEPA filter installation
section applies only to ovens designed for ISO Class 5 (Class 100) use, which
are equipped with
a HEPA filter. For a complete explanation of model numbers, refer to Section 1.5.1. Two
different types of filters are typically used. While both filters are high-temperature filters in that
they are designed for use in thermal processing equipment, the “standard” HEPA filter is rated to
260
°C ( 500°F) while the “high-temperature” HEPA filter is rated to 350°C (662°F).

Each LCC/LCD2-14 oven uses one of two types of HEPA filters,
depending on the oven’s maximum temperature. Ovens that can
be heated to 260
°C (500°F) use the Standard HEPA filter. Ovens
that can be heated to 350 °C (662°F) use the High-Temperature
HEPA filter.
However, customers requiring a higher ramp rate while
operating equipment below 260
°C (500°F) may still choose to use
the high-temperature HEPA filter:

Standard HEPA filter ramp rate: 1.25 °C (34.25°F)/minute

High-Temperature HEPA filter ramp rate: 5 °C
(41 °F)/minute
Warning!
Make certain power is disconnected from the oven before
removing or replacing the HEPA filter. Observe all applicable
safety procedures.
Caution!
The HEPA filter is fragile. Take care to avoid damage during
installation. If a filter unit is dropped, whether in the carton or
not, examine it carefully for damage.
Caution!
The HEPA filter must be installed so that unfiltered air cannot
leak past the unit.
In general, defer to installation instructions provided by the filter
manufacturer.