Free cooling is a fast, effective and economic way of
utilising low external air temperatures. It can be used to assist in cooling
water for industrial temperature control applications or in HVAC systems.

A chillers’ traditional design utilises integral compressor technology
to generate the cooling required for process and HVAC applications. The use of
Free Cooling in an industrial temperature control application differs from an
environmental cooling solution as fresh ambient air cannot be drawn straight
into the cooling circuit. Therefore, to harness the benefits of the low ambient
temperatures a Free Cooling coil needs to be introduced into the circuit.

A Free Cooling coil is installed in series with the chiller system’s
evaporator so in lower ambient conditions, partial or 100%, Free Cooling can be
achieved. This method of operation, utilises the UK’s natural low ambient
temperatures and in doing so benefits from a reduction in energy costs of up to
70%.

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