RAC Single system - Outdoor Unit - Connectable with wall mounted indoor unit Standard series (ZSP) - Design flexibility optimised with a compatible piping length up to 25 m (size 45/50) and up to 15 m (sizes 25/35) - Wide range of operation down to -15 degC and up to 46 degC in cooling (24 degC in heating) - Product range available with R32 (-W1) and R410A (-S) refrigerants