R717: Operation without economiser (ECO) in parallel compounding

1

Compressor

2

Check valve, discharge gas connection

3

Discharge gas line to the oil separator
installation with inclination

4

Oil separator

5

Oil cooler

6

Oil line, primary oil circuit

7

Mixing valve, primary oil circuit

8

Filter, primary oil circuit

9

Solenoid valve, primary oil circuit

10

Oil line, secondary oil circuit

11

Solenoid valve, secondary oil circuit

12

Check valve and/or pressure control valve, discharge gas line

13

Discharge gas line to the condenser

14

(Evaporative) condenser

15

Liquid line to the expansion valve.
Installation with inclination

16

Expansion valve

17

Solenoid valve, liquid line

18

ECO intermediate pressure vessel ("open flash")

19

ECO heat exchanger, flooded

20

R717 suction accumulator

21

R717 liquid pump(s)

22

R717 pump inlet flow (to the evaporators)

23

R717 pump return flow, wet.
Installation with downward inclination

24

R717 suction gas line, dry.
Installation with upward inclination

25

R717 ECO suction gas line, dry.
Installation with upward inclination

26

R717 bypass suction gas line, dry.
Installation with upward inclination

27

ECO bypass valve

28

Solenoid valve in the ECO suction gas line at the compressor

29

Check valve in the ECO suction gas line at the compressor

30

Cooling water control valve

31

Cooling water supply

32

Cooling water return

33

Pressure relief valve (required in connection with a check valve)

34

R717 return line, wet.
Installation with upward inclination

35

R717 return line, dry.
Installation with upward inclination

36

Thermosiphon receiver

37

Pressure regulation valve

LC

Level monitoring

TS

Thermostat