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hydRauliC CiRCuiT The basic unit version features a circulator or pump on the system side. The circulator is controlled directly by the control unit. Depending on the required water outlet set point, the flow rate will vary in order to reach the set tem- perature and to maximise the COP value. eleCTRiC panel With general disconnection device, protection of power and auxiliary circuits, compressor contactor, microproces- sor control with display of the main functions. The electric panel consists of: > Circuit breaker to protect the auxiliary and power circuits > Isolating switch and fuses to protect the auxiliary and power circuits > Compressor contactor > Fan revolution regulator for condensation control > Pump relay or motor protection and contactor > General alarm dry contacts Main control functions: > Utility set point temperature control > Circulator/pump management > Antifreeze protection management for heat exchanger on system side > Compressor operating cycle timing management. COnTROls and safeTy deviCes > High pressure switch with automatic reset (to defined values) > Low pressure switch with automatic reset > Low pressure safety valve > High pressure safety valve > Outlet water temperature control probe > Gas cooler refrigerant outlet temperature control probe > External air temperature probe > Suction temperature probe > Evaporation temperature probe > High pressure probe > Low pressure probe > Antifreeze probe on system side heat exchanger outlet > Mechanical pallet flow switch > Compressor over-temperature protection TesTing All the units are tested at the factory and are despatched filled with oil. The units are shipped without refrigerant. At the time of the order please provide the required operat- ing values. 17 The technical specifications contained in the documentation are not binding. Enerblue reserves the right to make any modifications it deems necessary at any time for product improvement. Technical book 2.1 Technical feaTuresPDF Image | R744 Heat pumps
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