Patent Number: 7,787,994

Title: Single line control for HVAC actuator

Abstract: Methods and systems for controlling an HVAC actuator using a single output control signal are disclosed. In one illustrative embodiment, the single output control signal may be a digital signal that serially encodes desired position data (either an absolute position or a relative position) for the HVAC actuator. In some cases, the single output control signal is provided by a controller remote from the HVAC actuator, and is received by the HVAC actuator. The HVAC actuator may include a controller for decoding the serially encoded data contained in the single output control signal, and for controlling the HVAC actuator accordingly.

Inventors: Wacker; Paul C. (Plymouth, MN)

Assignee: Honeywell International Inc.

International Classification: G05B 13/00 (20060101)

Expiration Date: 8/31/12018