公开(公告)号：US20250003624A1

公开(公告)日：2025-01-02

申请号：US18476103

申请日：2023-09-27

Applicant: Trane International Inc.

Inventor： Behrooz Karimi ,  Raymond Walter Rite ,  Don A. Schuster ,  Brett R. Schneider ,  Sowmik Sarkar

IPC: F24F11/84

Abstract: Examples of the present disclosure relate to systems and methods for controlling the positioning of a modulating valve of a heat pump based on a discharge temperature setpoint of a compressor during periods of low ambient outdoor temperatures. A supervisory switching controller may determine that the climate control system should use a discharge temperature controller or a superheat controller to control the modulating valve. Upon detection of ambient outdoor temperatures below a minimum threshold and the detection of discharge temperatures of a compressor above a maximum threshold a discharge temperature controller may control the modulating valve. The discharge temperature controller may control the positioning of the modulating valve based on a discharge temperature setpoint and a map-based controller. The map-based controller may map a calculated discharge temperature error to a position of the modulating valve as a function of a calculated superheat value and a measured suction pressure.