Morphing Air Conditioner into Autocascade System

[Freddie123]

Mytek can't find cryo's post on the hot gas defrost feature. Am I right in thinking that it allows a continuous stream of hot gas into the evaporator as it runs? Why is a having a none icy evap useful surely it will just raise temps?

[boshuter]

Mytek can't find cryo's post on the hot gas defrost feature. Am I right in thinking that it allows a continuous stream of hot gas into the evaporator as it runs? Why is a having a none icy evap useful surely it will just raise temps?

I have a chiller with a hot gas bypass system, mine is controlled by a solenoid hooked to a temp controller; it opens and closes the solenoid to maintain the correct temp. There is a "T" right after the condenser on mine, one branch goes to the filter/cap tube and the other goes to the hot gas bypass regulator, the solenoid is after the "T" and right before the filter/cap tube; When the solenoid is closed the hot gas goes through the hot gas bypass regulator and into the evap. It's a very effective way to control evap temps without having to cycle the compressor on and off.