OPERATING AND MAINTENANCE MANUAL
Chapter 4 - Description
iC 215 ÷ iC 780
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The data in this manual are not binding and they can be modified by the manufacturer without notice.
Reproduction of this manual is strictly prohibited
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4 . 1 2
S u b - z e r o a m b i e n t t e m p e r a t u r e s
In the presence of sub-zero ambient temperatures (-20) the unit is equipped with a system that assures perfect operation, also
in the presence of harsh temperatures.
The additional elements fitted are:
•
fans electronic speed control
•
electrical cabinet heaters.
To prevent ice formation on the tank and on the pump (if present), instead of using glycol the unit can be equipped with the
evaporator freeze protection option. This option involves installing wire resistance type heaters wrapped around the tank and
the pump (if present) and switched on by the microprocessor controller on the basis of an ambient temperature probe signal.
The heaters make it possible to protect the evaporator in the presence of ambient temperatures below 0°C and greater than or
equal to -10°C. For ambient temperatures below -10 and above -20°C, in addition to the anti-freeze heaters the tank and
pumps must be equipped with double insulation (special unit).