Abstract: A heat exchanger arrangement includes a housing in which an air inlet opening is arranged on the circumference, a cover that covers the housing on an upper side and in which an air outlet opening is arranged, a reverse-operated radial fan being arranged inside the housing in such a way that it can generate an air flow between the air inlet opening and the air outlet opening, which air flow is directed radially inward with respect to the axis of rotation of the radial fan and which flows through at least one air heat exchanger arranged in the housing.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir includes a water heat exchanger and an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir, and wherein the device includes an outdoor air inlet from which an outdoor air flow can be induced to an air outlet through the air heat exchanger, includes a heat exchanger which is designed to direct exhaust air flowing in from an exhaust air inlet for energy transfer via the liquid reservoir (FR) into a peripheral area of the heat exchanger, from which the exhaust air can be supplied as an extract air flow to the air heat exchanger, in which the outdoor air flow and the extract air flow mix.

Abstract: A system for the climate-control of interior spaces of a building includes an exhaust air channel for guiding exhaust air out of at least one interior space, and a heat recovery device designed to obtain thermal energy from the exhaust air. One or more interior spaces have a circulating air module with fresh air intake connected to a fluid circuit of a climate-control device. The circulating air module includes a housing with a fresh air inlet for fresh air to flow into the housing, and inside air inlet and outlet openings; a heat exchanger; an inside air fan for conveying through the exchanger inside air flowing in through the inside air inlet opening as circulating air. Fresh air is supplied to the circulating air in the housing and the circulating air flows out the inside air outlet opening as supply air along with the added fresh air.

Abstract: A circulating air module with fresh air intake which can be introduced into or secured to a building wall of an interior space, includes a housing with a front side facing the interior space and an opposing rear side, a fresh air inlet, an inside air inlet and outlet openings; a heat exchanger; an inside air radial fan having an axially arranged air inlet facing the exchanger, for drawing through the exchanger inside air flowing in through the inside air inlet opening as circulating air; and a fresh air fan supplying fresh air laterally adjacent to the inside air radial fan between the front and rear sides of the housing. The circulating air module is designed such that fresh air is supplied to the circulating air in the housing and the circulating air flows out the inside air outlet opening as supply air along with the added fresh air.

Abstract: A circulating air module with fresh air intake which can be introduced into or secured to an interior space building wall, or into a ceiling region or a ceiling of the space, includes a housing with front and opposing rear sides, a fresh air inlet for fresh air to flow into the housing, and inside air inlet and outlet openings; a heat exchanger; an inside air radial fan having an axially arranged air inlet, facing the exchanger, for drawing through the exchanger inside air flowing in through the inside air inlet opening as circulating air. The exchanger is between the front or rear side and the fan, wherein the air inlet thereof faces this side. Fresh air is supplied to the circulating air in the housing and the circulating air flows out of the inside air outlet opening as supply air along with the added fresh air.

Abstract: An outdoor energy-storage device of a system for air conditioning interior rooms of a building, wherein the outdoor energy-storage device can be arranged outside the building, can be partially sunken in the ground and includes an energy store for energy transmission and energy storage with a liquid reservoir, a water heat exchanger in the liquid reservoir and an air heat exchanger above the liquid reservoir, a heat pump, which is coupled to the water heat exchanger and the air heat exchanger, and an exhaust-air connection, which is intended for exhaust air from the building and is coupled to the energy store and the heat pump so that the exhaust air entering through the exhaust-air connection adjusts the temperature of the heat pump, at least in certain regions, before the exhaust air enters the energy store.

Abstract: An installation device having power-engineering or building-services-engineering modules, and a method therefor, includes at least two side walls and a removable front cover, which enclose stackable modules. The side walls have a frame, two longitudinal rails arranged therein, and a transverse rail. The longitudinal rails are arranged along the corners of the modules remaining in the device for servicing of a module, in order to secure the one or more modules arranged above the module to be serviced. The two frames are arranged along two longitudinal rails on the front side and can be connected, via pulleys attached to the upper frame segment, to the transverse rails, on which the module to be serviced rests, so that the module is removable from the installation device once the one or more modules arranged above the module to be serviced are secured to the longitudinal rails.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir has a water heat exchanger arranged on a bottom and has an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir that is surrounded by an inner shell which delimits the device with respect to an outer shell covering the inner shell from the bottom, wherein the outer shell is at least partially inserted into an earth layer, and the device is closed upwardly by a lid in such a way as to make it possible to generate a flow of air from an air inlet to an air outlet of the air heat exchanger.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir includes a water heat exchanger and an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir, and wherein the device includes an outdoor air inlet from which an outdoor air flow can be induced to an air outlet through the air heat exchanger, includes a heat exchanger which is designed to direct exhaust air flowing in from an exhaust air inlet for energy transfer via the liquid reservoir (FR) into a peripheral area of the heat exchanger, from which the exhaust air can be supplied as an extract air flow to the air heat exchanger, in which the outdoor air flow and the extract air flow mix.

Abstract: In a system for air-conditioning interior spaces of a building which are connected via at least one exhaust air duct, one or more interior spaces are provided with an air-conditioning unit which has a inlet line of outdoor air, which supplies inlet air or circulating air to the interior space or spaces, and which is connected to a fluid circuit of a heat pump. The exhaust air duct and a further fluid circuit of the heat pump are connected to an energy store installed outside the building, wherein the energy store is connected to a heat exchanger in a liquid reservoir for energy transfer and for energy storage, which is connected via the heat exchanger to another fluid circuit of the heat pump, the exhaust air being directed into the liquid reservoir via a heat exchanger.

Abstract: A heat exchanger arrangement includes a housing in which an air inlet opening is arranged on the circumference, a cover that covers the housing on an upper side and in which an air outlet opening is arranged, a reverse-operated radial fan being arranged inside the housing in such a way that it can generate an air flow between the air inlet opening and the air outlet opening, which air flow is directed radially inward with respect to the axis of rotation of the radial fan and which flows through at least one air heat exchanger arranged in the housing.

Abstract: A device for energy transfer and for energy storage in a liquid reservoir has a water heat exchanger arranged on a bottom and has an air heat exchanger arranged above the water heat exchanger, wherein the water heat exchanger is arranged in a liquid reservoir that is surrounded by an inner shell which delimits the device with respect to an outer shell covering the inner shell from the bottom, wherein the outer shell is at least partially inserted into an earth layer, and the device is closed upwardly by a lid in such a way as to make it possible to generate a flow of air from an air inlet to an air outlet of the air heat exchanger.