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navigationallyaided t1_j8fxv76 wrote

Reply to comment by Onetap1 in What do bacteria living in mechanical ventilation feed on ? by malahchi

Yep, the water used in the cooling tower is the perfect place for bugs to grow and many commercial HVAC systems don’t have HEPA/UV treatment for the air handlers. You can treat the cooling tower water with quats to suppress bacterial/viral growth. Also, the condensate that forms in the air handlers is also ideal for bugs to grow.

The movement in HVAC is to have separate air handlers and only one cooling tower.

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David_Warden t1_j8g0ltf wrote

Anywhere that you cannot afford to shut down the cooling you will have more than one cooling tower so you can continue operation if a tower is out of service. (eg Hospital, Critical computer centre, Critical Process)

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