Atlas Copco Stationary Air Compressors User Manual

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 
 
 

 
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. 
 
 

 
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