42/78 06/02/2008
High-presssure pressostaat
The settings depend on the type of condensing unit and refrigerant being used. You always HAVE TO
respect the values (indicated on the identification label) stated by the manufacturer of the cooling unit.
Basic values:
The differential is 5.5 bar.
Control of fan motor(s)
If the cooling unit is installed outside (ambient temperature + 5 °C for long periods) or connected to a
heat recovery system, the pressure of the refrigerant in the receiver tank HAS TO be kept above a certain
minimum. One of the methods which can be used is switching the condensor fans on and off by means of a
pressure switch or electronic fan speed controller connected to the RECEIVER TANK.
Set the following values (in kg/cm²):
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