... ,Dot matrix LCD line controller 4,COP:4.2 air source heat pump water chiller and floor heating ParametersModelMACHRW050ZB ... , gymnasium, various public hospital ect. Multistage energy regulationAccording to different load flexible use of multistage energy regulation. High efficiency ... freezing in cold weather,, particularly suitable for cold areas.Air to Water Heat PumpIt is EVI design for 60oC higher ...