公开(公告)号：US20200370765A1

公开(公告)日：2020-11-26

申请号：US16513499

申请日：2019-07-16

Applicant: Johnson Controls Technology Company

Inventor： John T. Knight ,  Stephen B. Pickle ,  Norman J. Blanton ,  Kerry L. Shumway

IPC: F24F3/052

Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a first sensor disposed adjacent to an inlet of an evaporator configured to receive an airflow. The HVAC unit includes a second sensor disposed adjacent to an outlet of a reheat coil positioned downstream of the evaporator and configured to expel the airflow. The HVAC unit also includes a controller configured to regulate operation of a modulating reheat valve to adjust flow of a working fluid in thermal communication with the airflow to control a difference between a measurement of the first sensor and a measurement of the second sensor.

公开(公告)号：US20200132321A1

公开(公告)日：2020-04-30

申请号：US16182287

申请日：2018-11-06

Applicant: Johnson Controls Technology Company

Inventor： Norman J. Blanton

IPC: F24F11/36 ,  F24F11/77

Abstract: A refrigerant leak management system includes a controller is configured to receive a signal indicative of a refrigerant pressure within a refrigerant circuit and determine whether the refrigerant pressure is indicative of a refrigerant leak in the refrigerant circuit. In response to determining that the refrigerant pressure is indicative of the refrigerant leak, the controller is configured to activate a fan configured to motivate air proximate the refrigerant circuit.

公开(公告)号：US20170030601A1

公开(公告)日：2017-02-02

申请号：US15291980

申请日：2016-10-12

Applicant: Johnson Controls Technology Company

Inventor： Norman J. Blanton ,  Stephen C. Wilson ,  Stephen B. Pickle

IPC: F24F3/153 ,  F24F13/20 ,  F24F11/00

CPC classification number: F24F3/153 ,  F24F3/044 ,  F24F11/30 ,  F24F11/61 ,  F24F11/63 ,  F24F11/64 ,  F24F11/65 ,  F24F11/77 ,  F24F11/84 ,  F24F13/20 ,  F24F2001/0066 ,  F24F2001/0077 ,  F24F2110/10 ,  F24F2110/20 ,  F24F2140/12 ,  F24F2221/183 ,  F24F2221/54 ,  F25B5/02 ,  F25B7/00 ,  F25B41/04 ,  F25B47/022 ,  F25B2600/0271 ,  F25B2600/111 ,  F25D17/06 ,  Y02B30/743

Abstract: The present disclosure is directed to a single compressor HVAC system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device. Within the system, the refrigerant exiting the compressor is separated into two portions. In the cooling mode, the first and second portions of the refrigerant are directed from the compressor through the two condensers in parallel. In the reheat mode, the first portion of the refrigerant is directed through the first condenser, while the second portion of the refrigerant is directed through the reheat heat exchanger. The system also may include a head pressure control device that is designed to maintain the compressor discharge pressure within a desired range by adjusting the condenser fan speed.

Abstract translation: 本公开涉及具有热气体再热的单个压缩机HVAC系统。 该系统包括单个压缩机，一对冷凝器，再热换热器，蒸发器和膨胀装置。 在系统内，离开压缩机的制冷剂分成两部分。 在冷却模式中，制冷剂的第一和第二部分平行地从压缩机通过两个冷凝器。 在再热模式中，制冷剂的第一部分被引导通过第一冷凝器，而制冷剂的第二部分被引导通过再热换热器。 该系统还可以包括头压力控制装置，其被设计成通过调节冷凝器风扇速度将压缩机排出压力维持在期望范围内。