Heat pump controller with user-selectable defrost modes and reversing valve energizing modes

Patent metadata

Field	Value
Publication number	US-9964345-B2
Application number	US-201414155575-A
Country	US
Kind code	B2
Filing date	Jan 15, 2014
Priority date	Dec 26, 2013
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

A heat pump controller for use in a heat exchange system includes a computing device and a user interface coupled to the computing device. The computing device is configured to initiate a defrost cycle based on one of a plurality of user-selectable defrost modes, and the user interface is configured to display the user-selectable defrost modes and receive a user selection corresponding to one of the user-selectable defrost modes.

First claim

What is claimed is:

1. A heat pump controller for use in heat exchange systems of a plurality of heat exchange system manufactures, each one of the heat exchange systems of the plurality of heat exchange system manufactures including an external heat exchanger, a compressor, a reversing valve, and an internal heat exchanger in fluid communication with one another, the heat pump controller comprising:
a computer-readable storage device storing computer executable instructions corresponding to a plurality of user-selectable defrost modes, wherein a first defrost mode of the plurality of user-selectable defrost modes corresponds to a first one of the heat exchange systems of a first one of the plurality of heat exchange system manufacturers, and a second defrost mode of the plurality of user-selectable defrost modes corresponds to a second one of the heat exchange systems of a second one of the plurality of heat exchange system manufacturers;
a user interface, the user interface configured to:
display the plurality of user-selectable defrost modes; and
receive a user selection of one of the plurality of user-selectable defrost modes, wherein the one of the plurality of user-selectable defrost modes is selected to control one of the heat exchange systems of one of the plurality of heat exchange system manufacturers; and

a computing device coupled to the user interface and the computer-readable storage device, the computing device configured to initiate a defrost cycle for the one of the heat exchange systems of the one of the plurality of heat exchange system manufacturers based on the selected one of the plurality of user-selectable defrost modes.

2. The heat pump controller of claim 1 , wherein in the first defrost mode the computing device initiates the defrost cycle based on a temperature of the external heat exchanger and a period of time, and in the second defrost mode the computing device initiates the defrost cycle based on a temperature differential between the temperature of the external heat exchanger and an ambient air temperature surrounding the external heat exchanger.

3. The heat pump controller of claim 2 , wherein the period of time is a compressor run time.

4. The heat pump controller of claim 2 , wherein in the second defrost mode, the computing device initiates the defrost cycle based on the temperature differential and a compressor run time.

5. The heat pump controller of claim 1 wherein the plurality of user-selectable defrost modes further includes a third defrost mode different than the first and second defrost modes.

6. The heat pump controller of claim 1 wherein each of the plurality of user-selectable defrost modes is mutually exclusive.

7. The heat pump controller of claim 1 , wherein the computing device is further configured to output an energizing signal to the reversing valve while the one of the heat exchange systems of the one of the plurality of heat exchange system manufacturers is in one of a heating mode or a cooling mode based on one of a plurality of user-selectable reversing valve energizing modes.

8. The heat pump controller of claim 7 , wherein the user interface is further configured to display the plurality of user-selectable reversing valve energizing modes and receive a user selection corresponding to one of the plurality of user-selectable reversing valve energizing modes, wherein the controller energizes the reversing valve in the heating mode in response to a first reversing valve energizing mode of the plurality of reversing valve energizing modes being selected, and energizes the reversing valve in the cooling mode in response to a second reversing valve energizing mode of the plurality of reversing valve energizing modes being selected.

9. The heat pump controller of claim 1 , wherein the user interface is further configured to display a plurality of user-configurable settings and receive a user selection corresponding to one of the plurality of user-configurable settings, the plurality of user-configurable settings including at least one of a defrost enable temperature, a defrost termination temperature, and an auxiliary heater lockout temperature.

10. The heat pump controller of claim 1 , wherein the computer-readable storage device includes a plurality of user-selectable pre-configurations, each of the plurality of user-selectable pre-configurations corresponding to one of the plurality of heat exchange system manufacturers' default settings.

11. The heat pump controller of claim 10 , wherein the user interface is configured to display the plurality of user-selectable pre-configurations and receive a user selection corresponding to one of the plurality of user-selectable pre-configurations.

12. The heat pump controller of claim 1 , the computing device further configured to:
determine when to initiate the defrost cycle based on at least one sensed condition associated with the selected one of the plurality of the user-selectable defrost modes, wherein the at least one sensed condition includes at least one of a temperature condition, a pressure condition, a condition sensed by a photo-optical sensor, and a condition sensed by a tactile sensor.

13. The heat pump controller of claim 1 , the computing device further configured to:
determine when to initiate the defrost cycle based upon the selected one of the plurality of the user-selectable defrost modes and at least one sensed condition associated with the selected one of the plurality of the user-selectable defrost modes, wherein the at least one sensed condition includes a temperature condition, a pressure condition, a condition sensed by a photo-optical sensor, and a condition sensed by a tactile sensor.

14. A method of installing a heat pump controller for use in heat exchange systems of a plurality of heat exchange system manufacturers, each one of the heat exchange systems of the plurality of heat exchange system manufactures including an external heat exchanger, a compressor, a reversing valve, and an internal heat exchanger in fluid communication with one another, the heat pump controller including a computing device coupled to a user interface and a computer-readable storage device, the method comprising:
coupling the computing device to the reversing valve;
displaying, using the user interface, a plurality of user-selectable defrost modes, wherein the computer-readable storage device stores computer executable instructions corresponding to the plurality of user-selectable defrost modes, and wherein a first defrost mode of the plurality of user-selectable defrost modes corresponds to a first one of the heat exchange systems of a first one of the plurality of heat exchange system manufacturers, and a second defrost mode of the plurality of user-selectable defrost modes corresponds to a second one of the heat exchange systems of a second one of the plurality of heat exchange system manufacturers;
selecting, using the user interface, one of the plurality of user-selectable defrost modes, wherein the one of the plurality of user-selectable defrost modes is selected to control one of the heat exchange systems of one of the plurality of heat exchange system manufacturers, and wherein the heat pump controller initiates a defrost cycle for the one of the heat exchange systems of the one of the plurality of heat exchange system manufacturers based on the selected one of the plurality of user-selectable defrost modes.

15. The method of claim 14 , wherein in the first defrost mode the computing device initiates the defrost cycle based on a temperature of the external heat exchanger and a period of time, and in the second d

Assignees

• Emerson Electric Co

Inventors

• Vie David L
• Edwards Timothy B

Classifications

• F25B2600/11

  Fan speed control · CPC title

• F25B2700/2103

  near a heat exchanger · CPC title

• F25B49/02

  for compression type machines, plants or systems · CPC title

• F25B2600/01

  Timing · CPC title

• F25B2500/19

  Calculation of parameters · CPC title