Method for automatically adjusting the defrost interval in a heat pump system

摘要

The present invention relates generally to a method for automatically adjusting the interval of time between defrost cycles in a heat pump system. The method includes tracking the duration of the previous defrost cycle or cycles, and dynamically adjusting the length of time before initiating the next defrost cycle.

主权项

1. A method for dynamically adjusting a defrost interval in a heat pump system, the method comprising:
(a) initiating a defrost cycle; (b) terminating the defrost cycle when a condenser coil reaches a threshold temperature or when a maximum duration time limit is reached; (c) detecting the duration of the defrost cycle; (d) dynamically adjusting the duration of the defrost interval as a function of the duration of the defrost cycle and a schedule of defrost cycles and defrost intervals, such that the duration of the defrost interval is inversely related to the duration of the defrost cycle; (e) automatically initiating a next defrost cycle based solely upon completion of the duration of the defrost interval; and (f) repeating steps (b)-(e).