An air source heat pump (ASHP) consists of several vital components that work together to transfer heat from the air outside to the inside of a building. An Air Source Heat Pumps Cheltenham can install one of these for you.
The main parts of an ASHP include the evaporator coil, compressor, condenser coil, expansion valve, refrigerant, air handling unit, thermostat or control system, filter dryer, defrost controls, and auxiliary heat source.
The evaporator coil takes heat from the outside air. The refrigerant inside the coil evaporates as it absorbs heat, turning from a low-temperature liquid into a vapour.
The compressor, also part of the outdoor unit, increases the pressure of the refrigerant vapour. This process raises the temperature of the vapour significantly.
The condenser coil allows the hot refrigerant vapour to release its heat, which is then used to warm up the indoor space. As the refrigerant loses heat, it condenses back into a liquid.
The expansion valve is positioned between the condenser and the evaporator. It reduces the pressure of the refrigerant, allowing it to cool down and absorb heat once again when it flows back into the evaporator coil.
The refrigerant is a special fluid vital for the heat transfer. It circulates through the system, changing states between liquid and vapour as it absorbs and releases heat.
The thermostat or control system allows you to set the temperature in your rooms.
