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ESIE 05-07 Piping Layout
Part 1 – System Outline 1–101
3
1
4
5
Components
refrigeration side
The table below describes the main components of the refrigeration circuit on the refrigeration side.
No. Component Function / remark
1 Compressor All compressors are semi-hermetic screw compressors with
step less capacity control.
3 Air-heat exchanger
(condenser)
The air-heat exchanger is of the cross fin coil type. Hi-X-tubes
and PE coated waffle louvre fins are used. The air is discharged
upwards.
4 Fan Direct driven single speed motor.
6 Low-pressure
transmitter and High
pressure transmitter
The Low and high pressure transmitter are used to gain
information in order to perform some controls and also act as
safety.
7 High-pressure switch This switch acts as a circuit safety.
P Activation at 25 bar
P Manual reset at HP-Switch
8 Strainer This strainer prevents dirt particles from entering the solenoid
valve of the liquid injection.
10 Low-pressure service
port
The low-pressure service port is used to connect a low-pressure
gauge.
11 High-pressure service
port
The high-pressure service port is used to connect a
high-pressure gauge.
12 Serviceport Serviceport.
13 Liquid stop valve The liquid stop valve is used as shut-off valve in case of a
pump-down.
14 Suction stop valve
(optional)
This suction stop valve can be used in combination with the
discharge stop valve to seperate the compressor from the
system (for examble: maintenance).
17 Safety valve The safety valves prevent pressure above 28 bar.
18 Drier + charge valve The replaceable filter drier will keep the refrigerant system dry. It
is equipped with a 3/8”charge valve.
20 Discharge stop valve This stop valve is used during pump down and service work in
combination with liquid stop valve or suction stop valve if
present (optional).
ESIE05-07.book Page 101 Wednesday, October 11, 2006 10:42 AM

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