... electric time-delay safeguard, when malfunction happened, it could alarm and show the cause of the problem in time5. ... 5 years without main components problem, like compressor, heat exchanger,6.Heat recovery can help user produce free hot water, ... ChillerGlycol Water ChillerIndustrial Chiller, Multi-function ChillerHot water Unit Heat Recovery unitHeat Pump unit Condensing unit, Air Handing unit, ...