The DWYER’S Series DFS or Low Limit Freeze Protection Switch are designed and develop to provide protection to cooling coils in an air handler systems by preventing frost build up. It has a manual and auto reset DPDT output that detects the lowest temperature and relays a signal to the building management system at the same time cutting off the fan to prevent any more lowering of temperature. DFS set points can be adjusted using the set point indicator and set point screw as low as 34°F or 1° C. It comes with mounting clips for easy installation and mounting.
Type : adjustable
Applications : for freeze protection
Temperature : Min.:
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