Back to results
US 2007/0180838 A1Published application
Method for automatically adjusting the defrost interval in a heat pump system
AssigneeCarrier Corporation
InventorRajendra Shah
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A method for dynamically adjusting a defrost interval in a heat pump system based on a duration of a prior defrost cycle comprising:
- detecting the duration of a prior defrost cycle;
- comparing the duration of a prior defrost cycle with a schedule of defrost cycle and defrost intervals;
- and
- dynamically adjusting the defrost interval based to a predetermined time based on the schedule of defrost cycles and defrost intervals,
- wherein the numerical values for the duration of the defrost cycles and the defrost intervals are inversely related.
2 more elements
A method for dynamically adjusting a defrost interval in a heat pump system based on a duration of a prior defrost cycle comprising:
- (a) presetting an initial defrost interval;
- (b) running an initial defrost cycle;
- (c) terminating the defrost cycle by a predetermined temperature or predetermined maximum duration;
- (d) detecting the duration of a prior defrost cycle and storing same in a memory;
- (e) comparing the duration of a prior defrost cycle with a predetermined schedule of defrost intervals;
- and
- (f) dynamically adjusting the defrost interval based to the predetermined schedule.
4 more elements
A heat pump system comprising:
- condenser coils;
- and
- a control device,
- wherein the control device is a timer that monitors the duration of a defrost cycle, establishes the defrost interval, and automatically initiates the next defrost cycle.
1 more element
Dependencies are inferred from the claim text.