493K K-Paq Junior Owner's Manual page 42

FUNDAMENTAL CONCEPTS - 2
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Sophisticated insulation provides an excellent heat barrier in a compact unit.
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Over multiple cycles, insulation will heat up, so cooling is also required.
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In K-PAQ Junior, cooling is provided by gel packs that are frozen & then
inserted inside the canister.
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Gel packs will provide cooling for a number of cycles, after which they will
need to be changed out. This simple operation can be accomplished within
the normal servicing time (unloading / loading) of the mold.
•
Change-out is typically necessary twice per 8-hour shift.
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