Hot Deck, Cold Deck - Short #182

HVAC School - For Techs, By Techs · Dec 12, 2023 · 10m

In this short episode, Bryan discusses the unique features of hot deck, cold deck systems. These systems have separate heating and cooling components (if not entire systems).

Older systems may have completely separate duct systems: one for heating and one for cooling. These ducts would go to each space, and you'd essentially have twice the ductwork you'd expect nowadays. Some systems also have a separate hot deck and cold deck in a single appliance (a bit like gas furnaces with case coils).

We also use the term "hot deck, cold deck" to refer to systems with secondary fluid in a single…