公开(公告)号：US20230069940A1

公开(公告)日：2023-03-09

申请号：US17943012

申请日：2022-09-12

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Thomas D. Chase

IPC: F24H9/20 ,  F24H9/1881 ,  F24H3/06

Abstract: Embodiments of the present disclosure are directed to a furnace that includes a blower configured to operate to force a fluid through the furnace, a motor having a rated speed, in which the motor is coupled to and configured to actuate the blower, and a controller configured to receive data indicative of an operating characteristic of the furnace and regulate operation of the motor to be at or below an operational speed limit. The controller is configured to set the operational speed limit based on the data indicative of the operating characteristic of the furnace, such that the operational speed limit is less than or equal to the rated speed of the motor.

公开(公告)号：US20240003567A1

公开(公告)日：2024-01-04

申请号：US18369590

申请日：2023-09-18

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Madhuka Manuranga JAYARATHNE ,  Thomas D. Chase ,  Theresa N. Gillette ,  Andrew Michael Boyd

IPC: F24F11/39 ,  B01D46/00

CPC classification number: F24F11/39 ,  F24F2110/10 ,  B01D46/0086

Abstract: A system faults to a return air sensor integrated within a heating, ventilation, and air conditioning (HVAC) unit. The system transmits a signal to a remote sensor. The system determines that a return signal is not received from the remote sensor. The system obtains a temperature reading from the return air sensor. The system determines whether the temperature reading satisfies a temperature setting stored in the memory. In response to determining that the temperature reading does not satisfy the temperature setting, the system enables heating or cooling of the HVAC unit until the temperature setting is satisfied. In response to determining that the temperature reading satisfies the temperature setting, the system disables heating or cooling of the HVAC unit.