ENGLISH 61 / 78 CAP. 11 - REFRIGERANT FLUID CIRCUIT
11.5 SUCTION UNIT CHART
The suction unit is a group made up of various pressurised equipments interconnected through
brazed piping, which according to the PED directive fall under article 3 paragraph 3.
A routine maintenance operation is the replacement of the dryer filter, the procedure of which is
outlined in the user manual.
Safety against the risk due to pressure of the refrigerant fluid inside the suction unit is ensured by
a safety gauge installed during manufacturing.
In case of replacement of the pressure switch or the unit, use of new and original spare parts not
contaminated by other substances is recommended as well as requesting the declaration of
conformity proving the effective test of the components in the beginning.
The assistance centre assumes responsibility for workmanlike assembly and for checking before
new commissioning according to the prescriptions provided for by the regulations in force in the
country of use; in particular, the assistance centre will have to guarantee that the assembly will
ensure a perfect tightness and that the safety components are installed appropriately so as to
ensure operation is not jeopardized.
SUCTION UNIT Art. 3.3 (Dir. 97/23/EC)
PRESSURE SWITCH 13/18bar 1/4SAE Category IV (Dir. 97/23/EC)
SWITCH
DISCHARGE SOLENOID
VALVE
RADIATOR
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