Operation; General; Some Compressor Equipment - Hertz HDD Series Instruction Manual

OPERATION

7 OPERATION
7.1

General

The system has been provided with an electronic control module to easily monitor the operating
and setting values of the compressor. Any necessary electrical and mechanical measures have
been taken for the operating safety. Following are listed some equipment and components of the
compressor for your information.
7.2

Some Compressor Equipment

➢ Control Module: It is an electronic unit on which all the alarms, failures, maintenance times and
intervals could be monitored.
➢ Screw Unit: It is the compressor unit that produces compressed air.
➢ Motor: It provides the mechanical excitation required for the screw unit.
➢ Coupling: It is the machine part that transfers the mechanical drive force from the motor to the
machine.
➢ Intake regulator: It is placed on the screw unit. It controls the compressor air intake for loaded and
unloaded conditions.
➢ Control Solenoid Valve: It is placed on the block connected to the intake regulator. It checks the air
delivered to the intake regulator to shift the compressor to loaded or idle position.
➢ Safety Valve: It is settled on the compressor oil tank. When the pressure inside the compressor oil
tank extremely increases due to a failure, it releases the pressure for safety.
➢ Minimum Pressure Valve: It is placed on the separator tank cap. In the compressor; just from the
beginning of the loaded operation, it keeps the compressor internal at minimum 29-43.5 psig (2 – 3
bar) for oil circulation. Furthermore, it prevents the pressure backlash from the air tank into the
compressor in idle operation and during shutdown of the compressor.
➢ Radiator: It cools down the oil circulating inside the compressor oil circuit and the air generated by
the compressor.
➢ Emergency Stop Button: Press it to stop the compressor in case of emergency. The button has
been designed to keep locked when depressed. Slightly turn clockwise to set it in normal position.
➢ Gauge: Shows the gas pressure.
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