Piping Layout ESIE98–06A
1–24 Part 1 – System Outline
3
11
4
5
2.3 Main Parts Refrigeration Circuit for EUWA5-30HB/C(Z)
Table The numbers in the table below refer to the numbers in the piping diagrams on the previous pages.
N° Part name Function
1 Compressor All compressors are hermetically sealed scroll types.
2 Air-heat exchanger
(condenser)
The air-heat exchanger is of the cross fin coil type. Hi-X-tubes
and coated waffle louvre fins are used. The air discharge is
upward.
3 Fan All fan motors are direct driven single or two speed motors.
4 Water-heat exchanger
(evaporator)
The water-heat exchanger is of the brazed plate heat exchanger
type.
5 Capillary tubes Used for R-22 models (EUWA5-30H).
Expansion valve Used for R-407C models (EUWA5-30HZ).
6 High pressure switch The setting is 28 bar.
7 Water in- and outlet
connections
The water in- and outlet connections are made of galvanized
steel pipe (British Standard Pipe - BSP). The pipes are not
insulated.
If Copper field piping is used for the water circuit, then
precaution should be taken for electrolytic corrosion.
8 Service valve The service valve is used for service work like connecting a
manifold.
9 Low pressure service
port
The low pressure service port is used to connect the optional
low pressure gauge.
10 High pressure service
port
The high pressure service port is used to connect the optional
high pressure gauge.
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