People often wonder how a heat pump can supply cooling plus heating while an a/c plan can not, then your heat pump has a component called a reversing valve.
This HVAC component is present in heat pumps plus not in a/c units.
A reversing valve is a medium-sized, cylindrical metal component with many smaller tube-like valves on one side plus one tube-like valve. There is also a small electrical component referred to as a solenoid on top of the reversing valve; Within the reversing valve is a sliding mechanism that operates by moving back plus forth, depending on the model of the valve, either heating or cooling. When you press a button on your dual-mode thermostat, the modes change either way. When your thermostat cues your heat pump to change modes, your solenoid gives the sliding mechanism a slight push, plus the coolant inside the refrigerant inside the reversing valve takes over. This action, in which the direction of the coolant flow is changed, is what physically swings the mode of your heat pump, but heat pumps do not control either heating or cooling, then rather, they convey heat from one endpoint to another with the help of the coolant, and in Winter time weeks, heat pumps absorb the heat in the air surrounding you, concentrate it, plus supply it to your home’s spaces. In the Summer weeks, heat pumps absorb the heat in your home’s living spaces plus convey it outdoors. However, the reversing valve enables your heat pump to change from heating to cooling plus back.