Instruction book
2920 1521 00
9
1 Air
filter
2 Drive
motor
3 Compressor
element
4 Compressed
air
outlet
5
Safety valve (CE)
Fig. 1.8 Details of a compressor module on SF Multi
1.2 Air flow
Air is drawn through the air filter into the compressor modules and is compressed. Compressed air is
discharged through the check valve and air cooler towards the air net.
1.3 Cooling and condensate drain systems (Fig. 1.9)
Each compressor element is cooled by a fan. The fan is mounted on the drive shaft of the compressor
element. The cooling air is blown over the compressor element and air cooler via a duct.
For SF Multi two fans, driven by electric motors, expel warm air from the bodywork.
SF Multi have a condensate trap, with an automatic condensate outlet (2) and a manual drain valve
(1).
1
Manual condensate drain valve
2
Automatic condensate outlet
Fig. 1.9 Condensate drains on SF Multi
