This temperature and defrost controller is required when using a Kreyer defrost kit.
The temperature control unit controls room/cooler/cave/cellar temperature when used in conjunction with a Kreyer fan unit. Kreyer fan units are plumbed to a Kreyer Glycol cooling unit. This unit turns on and off an optional solenoid placed at the inlet of the fan unit, which allows chilled glycol to enter the coils on the fan unit, while also turning on the fan(s) that blow cold air out into the room.
When using a Kreyer Fan unit for below freezing temperatures, you must also use their matching defrost kit. Kreyer Defrost Kits consist of an electric heating element or spiral and are fitted directly to their respective fan unit cooling fins. The Defrost Kit melts any iced condensate that can accumulate on the fins when the fan is used with Glycol-Water set below the freezing point. The Defrost Kit will periodically melt any iced condensate allowing you to use your fan unit at low temperatures.
For use with MR, SD-S, SD Plus, and TA Kreyer Fan Units.
For a fan unit temperature controller to be used above freezing temperatures, see our GLY980.