Subaru LEGACY 2002 Quick Reference Index page 488

HVAC System (Heater, Ventilator and A/C)
3) Discharge:
When the pressure of refrigerant in the cylinder chamber exceeds a predetermined pressure, the
roll valve opens to discharge the refrigerant through a pipe-shaped passage built in the front side
block into the high-pressure chamber in the front head. The gaseous refrigerant in the high-pres-
sure chamber is led to a baffle, which separates the compressor oil contained in the refrigerant
before it flows into the high-pressure piping.
(1) Front head
(2) Refrigerant (Discharging)
(3) Refrigerant (High-pressure)
COMPRESSOR
(4) Roll valve
(5) Front side block
(6) Pipe
AC-16
(7) High-pressure chamber
B4H0747A