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Check point 5 : Check opening and closing operation of valve
When valve is closed, it has a temp. (Add period)
difference between inlet and outlet.
If it is open, it has no temp. (Add period) difference
between inlet and outlet.
There is no refrigerant flow coming to EEV(INJ) while the liquid injection is inactive. Check whether the liquid
injection is active before executing check point 5 for EEV(INJ).
Check point 6 : Check stainer
Stainer normally does not have temperature difference between inlet and outlet as shown in 1, but if there is a
difference as shown in 2, there is a possibility of inside clogged. In this case, replace stainer.
CLOSE
Example : Hot gas
Pipe (In)
HI TEMP.
Pipe (Out)
Normal TEMP.
OPEN
Example : Hot gas
Pipe (In)
HI TEMP.
Pipe (Out)
HI TEMP.
Pipe (In)
Pipe (Out)
Pipe (In)
Pipe (Out)
Waterstage / Maintenance Manual / 2105 - EN