Plate Heat Exchanger and Patented Scale Trap Technology** Contained within the Ecodan Cylinder and Hydrobox, the aluminium plate heat exchanger and patented Scale Trap Technology help achieve greater efficiencies. In conventional systems, there is a risk of calcium scale building up on the plate heat exchanger if it is exposed to tap water directly; therefore making it difficult to heat tap water. To resolve this problem, Ecodan is equipped with a “Scale Trap” that catches calcium nuclei in the tap water before it has a chance to grow into large scales, thereby inhibiting build-up in the external heat exchanger. Ecodan can use a plate heat exchanger to heat tap water, resulting in much higher domestic hot water performance. In the case of special localised conditions such as very hard tap water, please consult a specialist before installation. 2-Zone Control Allows You to Simultaneously Control Two Different Temperature Zones Using Ecodan, it is possible to control two different flow temperatures, thereby managing two different heating load requirements. The system can adjust and maintain two flow temperatures when different temperatures are required for different rooms; for example, controlling a flow temperature of 40°C for the bedroom radiators and another flow temperature of 30°C for the living room underfloor heating. Optional PAC-TZ01-E 2-Zone Kit • Easy installation: G1 screw type flexi piping connections • Compact: fits on top of cylinder or wall mountable with hydrobox • All in one kit: key functional components are incorporated* *Flow switch not included – field supplied. 40°C 30°C Hydrobox Mixing Tank/Header Mixing Control Remote Controller as Thermistor Flow Switch Radiator Underfloor Heating Flow Switch Mixing Valve Pump Pump 2-Zone Control System Circulating Water Tap Water Hot Water Fresh Water Pump Scale Trap P - HEX External P-HEX Circuit DHW Storage Tanks ** Only available on cylinders made by Mitsubishi Electric. The Secret Behind Our External Plate Heat Exchanger System
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