Bitzer CM-SW-01 Technical Information

92 pages

Go to English

To Next Page

ST-150-4

Verdichtermodul für Schraubenverdichter

Originaldokument

Deutsch .................................................................................................................................................... 2

Compressor module screw compressors

Translation of the original document

English...................................................................................................................................................... 32

Module de compresseur pour compresseurs à vis

Traduction du document original

Français.................................................................................................................................................... 61

CM-SW-01

Dokument für elektrisch unterwiesene Monteure

Document for electrically skilled installers

Document pour des monteurs instrués électriquement

Other manuals for Bitzer CM-SW-01

Reference Guide42 pages

Translation Of The Original Instructions24 pages

Questions and Answers:

J
Jeremy HartAug 2, 2025
What to do if Bitzer CM-SW-01 Control Unit relays are not energized after power on?
- S
  Sean BrownAug 2, 2025
  If the relays in your Bitzer Control Unit aren't energizing after powering on and reapplying the run signal, try the following: * Turn off the power for 5 seconds and check if the relays energize upon restart. * If the PTC-sensor temperature is too high (resistance above 11.4 kΩ ±20%), the fault relay will release to protect the motor. * A broken connection to the PTC-sensor (resistance more than 1 MΩ) will also prevent relay engagement. * A short circuit on the PTC-sensor cables (resistance near zero Ω) will disable overheat protection. * If all three phases are within range and resistance is below 2.9 kΩ ±20%, the compressor module may be defective and require replacement.