Reference Name
Ca1 Pre-aftercooler
Ca Aftercooler
Ci1 Pre-intercooler
Ci Intercooler
Co Oil cooler
Cr Regeneration air cooler
CV Check valve
Eh High-pressure compressor element
El Low-pressure compressor element
FN Fan
MTa Moisture trap, aftercooler
MTi Moisture trap, intercooler
Nz Ejector nozzle
OF Oil filter
OP Oil pump
Ws Water separator
1 Demister
2 Rotor
3 Regulation valve for the inlet of the regeneration air
4 Strainer
Description
Air drawn through filter (AF) is compressed in low-pressure compressor element (El).
On ZR compressors, the compressed air is discharged to intercooler (Ci).
On ZT compressors, the compressed air is discharged to silencer, pre-intercooler (Ci1) and intercooler (Ci).
The cooled air is further compressed in high-pressure compressor element (Eh) and discharged through
silencer (AS) and aftercooler (Ca).
On ZR/ZT 110 up to ZR/ZT 275, a check valve (CV) is fitted downstream of the silencer.
The wet air from the aftercooler enters water separator (Ws) via ejector nozzle (Nz). In demister (1), the
water droplets are removed from the air. The air is then led through rotor (2), which adsorbs the water
vapour.
The compressed air leaves the compressor via the air outlet (AO).
Regenerating circuit of the dryer (only for Full-Feature units)
Hot regeneration air is branched off upstream of the aftercooler. The regeneration air passes through
regulation valve (3) and strainer (4), and is blown through the wet rotor channels.
The hot saturated air is then cooled down in regeneration air cooler (Cr). The regeneration air is then mixed
with the wet compressed air from the compressor aftercooler.
Instruction book
24 2920 1815 04
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