HS./OS.85

Example circuit: Single compressor HS.85 or OS.85 (except with R717) with water cooled condenser and oil cooler. Simplified representation. Oil stop valve, oil filter, oil filter monitoring and oil supply monitoring are integrated in the compressor.

Legend for refrigerant circuit HS./OS.53 to 85 (except with R717)
Legend
1	Compressor
2	Oil solenoid valve
3	Oil flow switch
4	Oil filter
5	Standstill bypass (if required)
6	Oil separator with heating and oil level switch
7	Differential pressure valve (if required)
8	Water cooled oil cooler (if required)
9	Condenser
10	Air cooled oil cooler
11	Oil pump (if required)
12	Mixing valve (if required)
	Suction gas filter
	Sight glass
	Control valve
	Solenoid valve
	Check valve
	Shut-off valve
PRV	Pressure regulating valve
LZ	Level monitor
FZ	Flow limiter
PC	Pressure-controlled
TC	Temperature-controlled

Legend contains connection positions that do not appear in every diagram.