CB-100-236
"Electronic low-pressure switch"
The low-pressure switch function switches the com-
pressor off as soon as the pressure falls below the set
pressure value. In contrast to the evaporation temperat-
ure limiter (pump down), the compressor is immediately
switched off as soon as this limit value is reached and
is not shut down via the ramp. Moreover, a fault is
stored in the fault memory of the VARIPACK frequency
inverter. As soon as the evaporation temperature set-
point is exceeded, the compressor is restarted.
"Electronic high-pressure switch"
The high-pressure switch function switches the com-
pressor off as soon as the set pressure value is ex-
ceeded. The standard setting and the maximum ad-
justable value corresponds to the maximum operating
pressure of the compressor. The high-pressure switch
is reset as soon as the temperature falls below the set
value of the condensing temperature limiter.
Information
The electronic high-pressure switch function
does not replace the type-examinated tested
high-pressure switch according to EN378!
Fig.24: Graphical representation of the general control functions of the extension module
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