3 weeks ago
Replacing some @danfoss_group contactors today!
Replaced all components after a periodic thermal imaging inspection revealed several contactors where running over 90 degrees!
The over heating is usually due to loose connections, a coil that’s sticking/arching or a breakdown of the contacts inside, we changed the whole lot just to be sure.
The contactors supplied fans in a Air handling unit, they had overload relays and normally closed switches connected too. All the auxiliary contracts make them fun to fully isolate while keeping the panel live 🙄
Do you like working with BMS and control panels? Any BMS Gurus on here?
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