◎High efficient Copper tube in shell heat exchanger, compact with circulation pump(P model).

◎Air-Refrigerant coil equipped with inner grooved tubing and  Hydrophilic coated fins.

◎Saginomiya Electronic expension valve to adjust gas-flow in wide-range accurately !

◎Built-in insufficient water flow detect. 

◎Force defrost function and anti-freezing protection

◎ 2 Timmer setting, choose to heat during economical period.

◎ Adjustable 1 ~ 5 °C temperature differential  from target  water temperautre .

◎ Optional 2nd temperature weather compensation setting.

◎ Long distance switch termals available for connecting external PLC controller for on off command. 

◎ Internal clock and  memory record, auto-restart after power comsumption .