2-stage heat pump can deliver water at 80°C
Hitachi’s Yutaki-S80 air-to-water heat pump can generate hot water at up to 80°C with a COP of up to five. These heat pumps have two compressors working in cascade. One uses R410A and the other R134a. To maximise seasonal efficiency, the second compressor is used when high-temperature water is required.
There are six models with outputs from 10 to 16 kW in single- and 3-phase versions. The indoor units have a standard width of 600 mm for integration into kitchens and utility rooms and include a 200 or 260 l hot-water tank.
The wireless remote controller includes an LCD graphic display, one-touch holiday button, weekly timer and frost protection.
For more information on this story, click here: Aug 2012, 179
