3. Servicing
Cycle components
SMGB0097 rev.0 - 07/2015
74
3.3.12
Replacement of the pressure sensor (PS)
1
Disconnect the cables (7 and 8 of the pressure
sensor form the E-box of the compressor termi
-
nal board).
2
Unscrew the sensor and proceed to its replace
-
ment
3
When reassembling proceed in reverse order
than removing.
Pressure sensor
(PS)
3.3.13
Replacement of the pressure relief valve
1
Remove the relief valve unscrewing the valve
with a spanner.
2
When reassembling after replacing the relief
valve, proceed in the reverse order than remov
-
ing. Use Teflon tape on the thread to avoid any
leakage.
Relief valve
3.3.14
Replacement of the sight glass
To remove the sight glass proceed as follows:
1
Remove the brazed parts using a blowtorch and
previously cooling the pipe side and the sight
glass with wet cloth in order to avoid brazing
material enter inside the pipes.
2
When reassembling after replacing the sight
glass, perform the procedure in the reverse or
-
der than removing.
Sight glass
Brazed parts
3.3.15
Replacement of the stop valve (x3)
There are 3 stop valves located along the refrigerant cycle: 2 are located close the expansion valves and 1 is located at the
filter drier, as shown in the pictures below.
Stop valve (x3)
At filter drier
At expansion valves
To replace the stop valves, unscrew the
stop valve with a spanner. Remove and replace the stop valve. Use Teflon tape to seal the thread and avoid any leakage.
