Star Refrigeration has supplied a
bespoke plant for HVAC cooling at
the London offices of a global
investment bank.The existing
refrigeration plant operated on R22,
an ozone-depleting HCFC refrigerant,
currently being phased out.

Working alongside a leading
building services consultancy, Star
designed a low maintenance cooling
plant to improve efficiency, reduce
noise and ensure reliability for the
building’s heating, air conditioning
and ventilation system.

A challenging aspect to the project
was retaining five air handling units
(AHUs) which form part of the fabric
of the building. The cooling coils in
these units were supplied with direct
R22 refrigerant. Star developed a
flooded evaporator coil design that
could be retrofitted to these AHUs.

This was achieved using its Low
Pressure Receiver system design.

Star designed, built, installed and
commissioned a bespoke air-cooled
LPR refrigeration plant comprising
four 600kW chillers operating on
synthetic refrigerant R134a. The
system features Turbocor oil-free
compressors to provide high
efficiency, reliability and low noise
operation.