Application examples

Parallel compounding with common oil separator and oil cooler

These versions are described in detail in:

Compounding for different evaporation temperatures

The figures here apply to HS. and OS. compressors with most refrigerants. With CS. compressors, the oil separator is integrated in the compressor, therefore they are not listed here. For OS.A compressors with R717 (ammonia):

Example for HS.53 to 74 and OS.53 to 74:

Compounding for different evaporation temperatures, HS.53 to 74 and OS.53 to 74 (except with R717). Depending on the system, a common oil cooler may also be useful (see Technical Information ST-140).

Example for HS.85 and OS.85:

Compounding for different evaporation temperatures, HS.85 and OS.85 (except with R717). Depending on the system, a common oil cooler may also be useful (see Technical Information ST-140).
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.