Home Embe KRS-50B2/150L adopted world-known brand componens for longer working life, which has a perfect fault self-detection and protection system, which to ensure the unit work stably all year around without being influenced by the climate. Its micro-computer control system can remember the working condition when the electric stop, which makes it very safe to use, and its high efficiency to exchange heat saving much energy and thus its electric cost is much cheaper thanohterheaters.Features1.Adopt eco-friendly refrigerant R410A2. Adopt bigger heat exchanger than that of normal one's3. Witha higher efficiency COP exceeds 4.04. Adopt world known brand components, like Japanese famous brand compressor, Emerson Alco expansion Valve, Simens electric, etc, high quality and valiable5. Intelligent microprocessor control heating accutely inside6. Expansion valve keeps the most suitable refrigerant flow in any case7.SWEP stainless steel plate heat exchanger, 100% stainless water circuit8.Electric protection class IPX49. Suitable for many different systems, which can be connected wiith an existing boiler or place the old electric/ gas/ oil heater. It can be installed together with a solar heating system.10. Heating, cooling and DHW function, adaptable for all types of fan coils and terminals, ideal replacements for water and air conditioner.11. Perfect Protection design such as anti-frost protection, high/ low pressure protection, water flow protection, high-temp protection,etc, and automatic defrost function, assuring the system to run safely and efficiently even in hard condition.Working Principle: