Tyco Fire + Security Gmbh

Johnson Controls Tyco IP Holdings Llp

Anand Mallinath Dulange

Anthony J Reardon

Hambirarao S Sawant

Hambirarao Sayajirao Sawant

Karan Garg

Amit R Chothave

Mujibul R Mohammad

Dnyaneshwar G Rokade

Gregory Ulizio

Pankaj D Nalamwar

Dnyaneshwar Gorakshanath Rokade

Pankaj Digambar Nalamwar

An energy efficient heat pump for a heating, ventilation, and air conditioning (HVAC) system includes a vapor compression circuit, a heat exchanger of the vapor compression circuit configured to place a working fluid in a heat exchange relationship with an air flow directed across the heat exchanger, and a conduit system of the vapor compression circuit. The conduit system of the vapor compression circuit is configured to direct the working fluid into the heat exchanger and to receive the working fluid from the heat exchanger, wherein the conduit system is configured to direct the working fluid into the heat exchanger to place the working fluid in a counterflow arrangement with the air flow directed across the heat exchanger in a cooling mode of the heat pump and in a heating mode of the heat pump.

Energy efficient HVAC system with counterflow arrangement

A heating, ventilation, and/or air conditioning (HVAC) system includes a plurality of condenser fans and a control system. The control system is configured to perform operations that include identifying an ambient condition, determining an operating mode of the HVAC system, and operating a subset of the plurality of condenser fans based on the operating mode and in response to identification of a low ambient condition.

Condenser fan operation for HVAC system

A heating, ventilation, and air conditioning (HVAC) system includes a reheat valve configured to receive a refrigerant flow and regulate division of the refrigerant flow provided to a reheat coil and a condenser. The HVAC system also includes a condenser fan configured to draw a flow of outdoor air across the condenser and a controller communicatively coupled to the reheat valve and the condenser fan. The controller is configured to monitor a position of the reheat valve and to control operation of the condenser fan based on a correspondence between the position of the reheat valve and a threshold degree of opening.

Systems and methods for reheat control of an HVAC system

Energy efficient heat pump with heat exchanger counterflow arrangement

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Solapur, India

Anand Mallinath Dulange