The Arctic Energy range of compressed air refrigerant dryers are suitable for operation at air pressures from 4 to 16 bar, with ex-compressor air inlet temperatures from 0 to 55°C. Airline dewpoint settings from 2 to 10°C are maintained by a digital controller, within an ambient working condition range of 0 to 45°C. The control and heat exchanger technologies ensure that the dryer compressor is only operated when the pre-set dewpoint is exceeded. This ensures energy efficiency in operation, with further savings achieved by ensuring that even in ‘no-demand’ conditions where a main compressor is shut down (eg overnight). 32 models are available covering flow rates from 0.2 to 25m3/min, with larger dryers up to 257m3/min available to order. They all feature digital dewpoint display with compressor protection provided by high/low pressure switches. Refrigerant gas and dryer pressure manometers are fitted. Single phase 230V operation is available up to 14m3/min flow, higher flows with three phase operation. Only approved Freon gas refrigerants are used (R134a or R407c).