Optional Cooling Systems; Water Cooled Systems; Compact Soldered Heat Exchangers (Cshe); Figure 7 Water Cooled System - Hertz HDD Series Instruction Manual

OPTIONAL COOLING SYSTEM
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OPTIONAL COOLING SYSTEMS

There are two types of optional cooling systems in our compressors:
1. Water-cooled
2. Heat Recovered
4.1

Water Cooled Systems:

The water cooled systems cool down the compressed air generated by the oil circulating in the oil circuit and
the system with the help of an exchanger. These systems are optional in HERTZ screw-type compressors
and provide more efficient system cooling with the help of the exchangers designed specially according to
the capacity of the machine.
Exchanger: It cools down the oil circulating inside the compressor oil circuit and the compressed air
generated by the compressor.

Figure 7 Water Cooled System

4.1.1 Compact Soldered Heat Exchangers (CSHE)

Compact Soldered Heat Exchangers (CSHE) have an arrow on the front side. This can be in the form of a
sticky label or a relief on a cover plate. This mark is intended to indicate the front side of CSHE as well as
the locations of the internal and external circuits/channels. When the arrow shows up, the left side (F1, F3
outputs) shows the inner circuit and the right side (F2, F4 outputs) shows the outer circuit. Since there are
more channels on the outer circuit, it has slightly lower pressure drop. F1/F2/F3/F4 outputs are located on
the front side of the heat exchanger.
The sealing plates are intended to fill the gap between the first and the last channel plates. The number of
cover plates varies between the compressor models. The plates used in the exchanger of your compressor
were made of stainless steel, pure copper and nickel based filling and vacuum solder.
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