View Full Version : HVAC Controls - Relays and DDC

03-12-2014, 12:00 PM
Hi All,

HVAC Control Panel and Power panel!!

There are minor equipments like actuators (which works on 24-48V DC) and heavy motors (for AHUS and chillers). So, when a HVAC control panel is used (regardless of DDC or relay type), does power for both these heavy and minor equipment goes from HVAC control panel??

Is HVAC control panel and power panel the same?

Can someone explain to me in details?

Thanks in advance!