MovinCool Office Pro W20 Service Manual - Manual (Page 21)

Operation Section
21
(3) Operation
1) Start of compression
1) The cylinder is filled with low pressure gas.
2) Since pressure in the discharge chamber is
higher than in the cylinder, the discharge
valve is kept closed.
2) Suction and compression
1) The pressure in the cylinder increases
gradually.
2) Refrigerant suction begins on the suction
side of the cylinder.
3) The discharge valve remains closed.
3) Discharge
1) The pressure in the cylinder exceeds that in
the discharge chamber, and the discharge
valve opens.
2) On the suction side, refrigerant suction
continues.
4) Completion of compression
1) When compression is completed, all of the
refrigerant has been drawn from the suction
chamber.
2) Operation then returns to step 1) (Start of
compression) and the above process of
suction and compression continues
repeatedly in succession.
I001676
Blade
Discharge
Valve
Roller
I001677
Blade
Discharge
Valve
Roller
I001678
Blade
Discharge
Valve
Roller
I001679
Blade
Discharge
Valve
Roller