Method and apparatus for monitoring a refrigeration-cycle system

摘要

A monitoring system for monitoring operation of a refrigerant-cycle system is disclosed. An electrical sensor measures an electrical quantity indicative of power consumption of a component of the refrigerant-cycle system. A processing system selectively identifies a condition indicative of an airflow restriction through the refrigerant-cycle system based on the power consumption of the component.

主权项

1. A method of monitoring operation of a refrigerant-cycle system, the method comprising:
tracking, using a timer, a first period of an air handler outputting air and a second period of the air handler not outputting air; and using a processing system:
applying a first weighting value to the first period to produce a first weighted period, wherein the first weighting value is greater than zero;applying a second weighting value to the second period to produce a second weighted period; anddetermining a period of use of an air filter of the refrigerant-cycle system based on the first and second weighted periods; and notifying an owner to replace the air filter in response to the period of use of the air filter being greater than a predetermined period.