KT-420-4 // PDF Download
50
WARNING
Risk of electric shock!
Before working on the terminal box, module housing and electrical lines: Switch off the main switch and se-
cure it against being switched on again!
Close the terminal box and the module housing before switching on again!
!
!
NOTICE
The compressor module may be damaged or fail!
Never apply any voltage to the terminals of CN7 to CN12 – not even for test purposes!
The voltage applied to the terminals of CN13 must not exceed 10 V!
The voltage applied to terminal 3 of CN14 must not exceed 24 V! Do no apply voltage to the other terminals!
Never apply voltage to the voltage outputs, not even for testing.
For a safe and reliable operation, the BEST SOFTWARE includes a special “Frequency inverter” mode for the CM-
RC-01.
When utilizing the CM-RC-01, refrigerant injection (RI) can now be combined with frequency inverter operation (or
with the CRII system for mechanical capacity regulation) – extending the application limits of the compressor. The
CM-RC-01 allows for a very exact and demand-driven injection across a large capacity range. The same RI kit may
be used for different refrigerants and compressor sizes (within one housing).
Furthermore, the CM-RC module can control an additional fan, and it monitors the compressor operation including
a data log.
Schematic wiring diagrams
