A hydronic system includes a partition, a first conduit embedded in a first side of the partition, a second conduit embedded in a second side of the partition, a first sheet of finishing material covering the first conduit, a second sheet of finishing material covering the second conduit, and at least one valve and at least one pump. The at least one valve and at least one pump are configured to control a flow of a fluid inside the first conduit and the second conduit. When the hydronic system is operating in an isolating mode, the fluid flows in a first closed loop through the first conduit and the fluid flows in a second closed loop through the second conduit. When the hydronic system is operating in a heat exchange mode, the fluid flows between the first conduit and the second conduit in a third closed loop.

A heating installation for premises includes a controller coupled to an air source heat pump; a premises heating arrangement; and a local weather sensing arrangement. The controller is configured to receive weather forecast data from an external source, and local weather status information from the local weather sensing arrangement. The controller is also configured to set a control algorithm based on both the weather forecast data and the local weather status information, and control a supply of energy from the air source heat pump to the heating arrangement based on the set control algorithm; and increasing energy input into the heating arrangement in anticipation of a forecast fall in the temperature of the air from which the air source heat pump extracts energy. A method of controlling a premises heating installation is also disclosed.

A heat pump system and a method for operating this system type includes a heat pump circuit for a heat pump circuit medium flowing through a primary side of a heat exchanger, and a heating circuit for a heating circuit medium flowing through the heat exchanger secondary side. A heat circuit pump is connected upstream of the exchanger secondary side when viewed in the heating circuit medium operating flow direction. When viewed in the heating circuit medium operating flow direction, a check valve connected downstream of the heating circuit pump and upstream of the secondary side closes when a heating circuit medium flows opposite the operating flow direction, and a degassing unit connected downstream of the secondary side when viewed in the operating flow direction prevents a flow of the heating circuit medium in the operating flow direction from a predefined gas amount in the heating circuit medium.

In one embodiment, a water system includes a compressor, a condenser fluidly coupled to the compressor by refrigerant tubing, a modulating motor-controlled valve configured to alter a flow of water through the condenser, an accelerometer mechanically coupled to the water system, and a water system controller. The water system controller may be configured to perform an automated anti-water hammer procedure. During the automated anti-water hammer procedure, the water system controller may be configured to activate an operating procedure for the water system, transmit a control signal to the modulating motor-controlled valve, receive vibrational measurements received from the accelerometer, compare the vibrational measurements measured by the accelerometer to a predetermined vibration level associated with the operating procedure, and adjust the opening position and opening speed of the modulating motor-controlled valve for the operating procedure if the vibrational measurements exceed the predetermined vibration level associated with the operating procedure.

A ground source heat pump integrated controller includes a main module that has pre-integrated multiple main machines, pumps and valves according to the rated load of the main module, and a number of extended modules that have pre-integrated multiple main machines, pumps and valves according to a rated load of the extended modules. The main module and extended modules both are provided with a plurality of analog contacts and digital contacts, and the extended modules are connected, via the analog and digital contacts, to the main module according to the rated load of the ground source heat pump system. The advantage of the ground source heat pump integrated controller lies in that after system load is calculated according to floor area, multiple extended modules are connected to one main module, which increases the capacity of the main module and thus meets the requirement of system load.

A system includes a heat pump including a system for conveying a refrigerant fluid between two heat exchangers, the refrigerant fluid circulating through a closed circuit; at least two heat exchangers, at least one of the first and second heat exchangers including a plurality of energy storage devices collecting a portion of the energy of the refrigerant fluid or of a secondary fluid; a system for conveying the refrigerant fluid intended to receive or transmit a given amount of energy through the plurality of energy storage devices, and a system for conveying a secondary fluid intended to receive or transmit a given amount of energy through the plurality of energy storage devices.

The present disclosure provides a computer-implemented method of defrosting a heat pump of a water provision system installed in a building, the water provision system comprising the heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the heat pump, the water provision system being configured to provide water heated by the thermal energy storage medium to an occupant of the building at one or more water outlets, the method being performed by the control module and comprising: determining, based on performance of the heat pump, an expected start time of a next defrost cycle; and preparing the water provision system before the expected start time of the next defrost cycle.

A system for regulating a thermo-hydraulic circuit has a thermal machine, a heat exchange terminal, a carrier fluid circulation system having a delivery duct, a return duct, and a three-way valve. The system has a pump, a first temperature sensor measuring post-valve delivery temperature of the carrier fluid downstream of the three-way valve, a second temperature sensor measuring pre-valve delivery temperature of the carrier fluid, and a third temperature sensor measuring temperature of the carrier fluid downstream of the heat exchange terminal. A flow or flow rate sensor measures a mass or volumetric flow rate of the carrier fluid. An electronic control unit has a storage device in which a model function of the thermo-hydraulic circuit is stored. A processing unit calculates values of a valve control signal and a pump control signal as function of a mass or volumetric flow rate error and a carrier fluid delivery temperature error.

The hot and cold water air conditioning system includes a water temperature sensor configured to detect a temperature of water flowing out of the heat pump heat source apparatus by an operation of the water circulation pump, and a controller configured to perform, in a heating operation, on/off normal control that turns on a compressor when the water temperature detected by the water temperature sensor becomes lower than a target water temperature and turns off the compressor when the water temperature becomes higher than a first temperature value higher than the target water temperature, and to switch from the on/off normal control, upon repeating the on/off operation of the compressor at a minimum frequency necessary for an operation of the compressor in the on/off normal control, to on/off restriction control that turns on the compressor when the water temperature becomes lower than a second temperature value lower than the target water temperature and turns off the compressor when the water temperature becomes equal to or higher than a third temperature value higher than the target water temperature.

A heat pump system includes: a compressor for compressing refrigerant; a first heat exchanger for exchanging heat between the refrigerant compressed by the compressor and a heating medium; a second heat exchanger for exchanging heat between the refrigerant compressed by the compressor and the heating medium; a first pipe through which the refrigerant is fed from the compressor to the first heat exchanger; a second pipe through which the refrigerant returns from the first heat exchanger to the compressor; a third pipe through which the refrigerant is fed from the compressor to the second heat exchanger after returning from the first heat exchanger; and switching apparatus for switching a flow of the heating medium between a first mode and a second mode. The heating medium flows through the first heat exchanger and the second heat exchanger in series in the first mode. The heating medium flows through the first heat exchanger and the second heat exchanger in parallel in the second mode.