Intake Control System - Hertz HSC serie Bedienungshandbuch

4.7 INTAKE CONTROL SYSTEM

It provides the operation of your compressor at adjusted pressure interval by eliminating the hazardous dusts
that the compressor may absorb from external environment.
-INTAKE SYSTEM
The dusts inside the air absorbed by your compressor enter everywhere that oil penetrate with their corrosive
effects and corrodes them. The life of bearings, o-rings and the seals are rapidly decreased due to increased
friction. In addition with the corrosive effect of dust, the blocked filters absorb less air and the capacity of the
compressor drops, operating temperature rises and this adversely affects negatively the internal accessories of
compressor and the hoses rapidly hardened, bearings are corroded, oil is more rapidly contaminated as cooling
air and suction air is limited. Shortly, the cleaning and maintenance activities not performed on time causes
energy loss (financial loss) instead of saving.
Suction system is composed of panel filter outside of your compressor, the intake filter inside your compressor
and connection hose.
-INTAKE CONTROL SYSTEM
Δ
AIR FILTER P
SWITCH
INTAKE
VALVE
PRESSURE
TRANSDUCER
The intake control system is composed of; intake valve, solenoid valves, control air line hoses and safety
pressure switch. In the systems with electronic controller unit or inverter, pressure sensors are used for
obtaining pressure data.
The aim of intake control system is to operate the compressor in most economic way
During the start up of compressor, the intake system stays closed and prevents unnecessary loading and
establish an impact free start up.
When the demanded pressure value is reached, it closes the suction again and enables the rotation of
compressor motor by wasting minimum power. Instead of rapid start up and stopping, only the air suction of
the compressor is blocked and economic operation is supplied
According the pressure on the utility line, the electronic controller unit or pressure switch commands to
intake valve. The intake valve closes and opens the compressor's air suction this way.
When the compressor is stopped the pressure in the separator tank moves in the opposite direction tries to
turn the airend in opposite direction. The intake valve at this moment operates as a check valve and closes
suction and prevents the backward rotation of airend and splashing of the oil backwards.
CONTROL
SOLENOID
VALVE
CONTROLLER UNIT
44
BLOWDOWN SOLENOID
VALVE (opt)
SAFETY
PRESSURE
SWITCH
SAFETY VALVE
SEPARATOR TANK