At the heart of Ecodan is a modern, inverter-driven heat
pump compressor which converts free energy from the air and upgrades it to
higher temperatures suitable for heating. The inverter control regulates the
system so that heat output modulates to match the exact capacity required,
meaning the boiler will only consume the exact energy needed at any given
time and thus increase efficiency further. The advanced heating technology
used in heat pumps make them ideal for use in the UK’s ambient temperatures
and hence perfect for the domestic market.
inside the heat pump is similar to any domestic refrigerator, which uses a
vapour compression cycle. The main components in the heat pump are the
compressor, the expansion valve and two heat exchangers (an evaporator and a
How it works
in the evaporator is colder than the heat source.
This causes the heat to
move from the heat source (in this case the outside air)
to the refrigerant,
which then evaporates.
moves to the compressor and reaches a higher temperature and pressure.
The hot vapour
now enters the condenser and gives off heat as it condenses.
refrigerant then moves to the expansion valve; drops in temperature and
pressure; and then returns to the evaporator.