Operation; General; Function Explanations - Hertz HGS 2-15 Operator's Handbook Manual

4. CHAPTER

4.1 GENERAL

In order to enable you to easily see the operation and adjustment values of the compressor, an
electronic controller unit is installed to the system. The electrical and mechanical precautions have
been taken for establishing of operational safety. Some of the equipments of the compressor are
described below for your information.

4.2 FUNCTION EXPLANATIONS

CONTROL UNIT : See chapter 7 (Control Unit) for detailed information
COMPRESSOR UNIT : This is the part which produces air. Rotated by motor
MOTOR : Supplies mechanical drive for airend unit
INTAKE VALVE : Controls the air suction and provides machine run on load or unload
CONTROL SOLENOID VALVE : When the compressor reaches to adjusted pressure values, it
controls the air that goes to intake valve and makes the compressor operate at unload.
PRESSURE SWITCH : If the pressure in air vessel exceeds the set value, the pressure switch
stops the compressor. It is placed on the left side of electric board.
COOLER : Cools the oil in the system and produced air.

OPERATION

SAFETY VALVE: When the pressure in tank increased very high in case
of
failure, it releases the pressure and establishes safety.
MINIMUM PRESSURE VALVE : It provides the pressure remain at 4
bars in the oil receiver. In addition in case of idle operation and switching
of compressor; it prevents the system pressure to penetrate back to the
oil receiver.
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