Indoor exhaust air heat pump system, and method of controlling an indoor exhaust air heat pump

Abstract

Indoor exhaust air heat pump system, comprising: - an indoor exhaust air heat pump; - a first air inlet configured to be connected to an indoor ventilation system, wherein exhaust air defines a first heat source; - a second air inlet configured to be in fluid connection with outside air that defines a second heat source; - a flow sensor configured to measure an air flow rate to determine a pre-selected flow rate of the exhaust air of the indoor ventilation system; - a first air flow regulator configured to control a flow rate of exhaust air; - a second air flow regulator configured to control a flow rate of outside air; - a mixing chamber; and - wherein the first and the second air flow regulator are adjustable between an opened state and a closed state, and at least one intermediate state therebetween, to thereby allow a controller to set the flow rates of exhaust air and outside air entering the mixing chamber independently of each other based on the air flow rate measured by the flow sensor. The invention further relates to a method of controlling such an indoor exhaust air heat pump system. Fig. 2