OMEGA AIR RDHP 20, Installation And Operating Manual

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5 Refrigeration air dryer components
5.1 Compressor
The compressor sucks the gaseous phase of the refrigerant from the evaporator (low pressure side)
and compresses it to the condensation pressure (high pressure side). Built-in compressors are
manufactured by leading manufacturers and are designed for applications where high compression
ratios and high temperature differences are present. Hermetically sealed structure is tight and
provides high energy efficiency and long service life. The anti-vibration springs that carry the
compressor reduce sound emissions and transmission of vibrations. The refrigerant flowing through
the compressor to the cylinders of the compressor also cools the electric motor. Thermal protection
protects the compressor against overheating and overcurrent. The protection is automatically reset
when normal temperature operating conditions are reached.
5.2 Condenser
The condenser is a component in which the gas coming from the compressor cools, condenses and
changes the aggregate state from the gaseous to the liquid. The condenser is a pipe in which the
refrigerant is flowing, and on which fins are placed. The heat transfer is accelerated by an efficient fan.
It is important to ensure that the room temperature does not exceed the nominal values. It is also
important that the condenser unit is always clean and that dust or other impurities are not
accumulated on it.
5.3. Heat exchanger 3in1
The heat exchanger 3in1 combines air / air heat exchanger, air / coolant heat exchanger and
condensate separator. The compressed air counterflow in the air / air heat exchanger ensures
maximum heat transfer. A large cross-section of the flow channel in the heat exchanger 3in1 provides
low speed and low-pressure losses. The large dimensions of the heat exchanger air / refrigerant and
the counter-flow design enable the complete evaporation of the refrigerant (preventing the return of
the liquid to the compressor). A highly efficient condensate separator is located inside the heat
exchanger 3in1. No maintenance required, the effect of collecting drops ensures a high degree of
moisture separation.