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Should all HVAC duty and stand-by units be supplied from the main and emergency switchboard, respectively?

asked Jul 13, 2014 in E&I by antonjoh (2,870 points)

Should all HVAC duty and stand-by units be supplied from the main and emergency switchboard, respectively?

I am considering an auto changeover switch to be provided to allow powering either HVAC unit from the emergency switchboard.

1 Answer

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answered Jul 13, 2014 by josvanden (3,240 points)
HVAC units for critical areas only to be powered from the emergency switchboard.  All other HVAC units are to be powered from the essential generator.  No auto changeover switch should be provided.
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