Safety Interlock Upgrade

A Hospital client needed to enhance their safety interlock program. There were several problems with the consistency of all of the AHUs, from the documentation to the hardware used.

Enica went ahead and tested all freezestats for their AHUs, and as a result designed freeze and flood protection upgrades for the appropriate AHUs.

There were major issues that were identified with Enica’s help. 40% of the air handling units were subject to potential CHW coil freezes. Enica created a database for the priority of AHU repairs and implemented all of the repairs. The AHUs were then retested before the winter season approached.