14  RS8FE102, 080R9278   © Danfoss A/S (RA Marketing/MWA), Nov. 08
OPTYMA
TM
 Control three-phase  Operation and Maintenance Guide
1.
When starting the system for first time, it is advisable 
to  calibrate  the  motor  circuit  breaker  on  the 
compressor power circuits. Use an ammeter to check 
the effective absorption.
Calibrating the compressor motor circuit breaker 
2.
Calibrate  the  motor  circuit  breaker  based  on  the  
measured  absorption.  The  set  up  value  must  not  
exceed  that  recommended  by  the  compressor 
manufacturer.
Warning: 
An  incorrect  calibration  may  cause  compressor 
breakdown or bad intervention of the motor circuit 
breaker. 
3.
To  calibrate  use  the  control  screw  on  the  front  of 
motor circuit breaker.
Step-by-step instructions for calibrating    the motor 
circuit breaker for the compressor are given below: