Water cooler-heater GLWH 2012–4120 CD2.R

industrialcompactwater-cooled

These reversible heat-pumps use state-of-the-art technologies and boast efficient performance and compact design at the same time. Version as water-to-water heat pump with reversible refrigeration circuit Saves space while taking into account optimum service accessibility 2 or 4 scoll compressors Refrigerant R-410A Refrigeration circuit: - Depending on the performance, the units have 1-2 refrigerant circuits - Equipped with 2 or 4 scroll compressors in tandem design - Electronic expansion valve EEV - 4-way change-over valve for switching the refrigerant circuit - Plate heat exchanger - Electronic pressure transducers for high and low pressure Hydraulics: - Optional hydraulic modules for cold water and recirculation water circuit with standard or inverter pump - Water pumps available in two performance versions - 1 or 2 water pumps for redundant operation with automatic changeover after time or during pump failure - Water filter and flow monitor available as accessories Control & regulation: - Unit main switch - Safety devices for all electrical loads - Autoadaptive microprocessor control - Water inlet or outlet control - Automatic self-diagnosis - Alphanumeric display - Select from multiple languages - Readout of fault messages - Remote on / off contact - Collective fault signal - Operating message device Equipment: - Guide / follow-up with up to 5 units in a hydraulic circuit - Connection to the building control system via Modbus, LonWorks and BACnet possible - Connect an additional remote control - Many other extensive accessories available