HYDROCIATTMLW Water chillers Heat pump Description of the components ■ Compressors - Compressor motor contactor - Twin-screw semi-hermetic type - Connect Touch microprocessor-controlled electronic control - 2 screws fitted on ball and roller bearings module - Continuous power control - Electrical cabinet wire numbers - Built-in electric motor, cooled by intake gases - Location of main components - Integral electronic protection of the motor against thermal ■ Connect Touch control module and electrical overloads - User interface with 4.3 inch touchscreen (7-inch option) - Monitoring of rotation direction, absence of phase, over and- Intuitive, user-friendly navigation using icons under voltage, and power supply failure - Clear information display in 8 languages - Monitoring of lubrication under differential pressure - (F-GB-E-NL-I-S-P + Chinese) - Built-in oil filter - Internal pressure surge valve and valve to prevent reverse rotation during shutdown phases - Monitoring of maximum head pressure - Silencer fitted at the discharge to reduce pulses from the discharged gas - Star-delta start limiting the in-rush current ■ Shell and tube evaporator - High performance glandless technology - The electronic control module performs the following main - Copper tube bundle with internal and external grooves functions: - 19 mm thermal insulation - regulation of the chilled water temperature (at the return or - Victaulic type coupling at the outlet) - Maximum pressure, water side, of 10 bar (21 bar as option) - regulation of the water temperature based on the outdoor temperature (water law) ■ Shell and tube condenser - regulation for low temperature energy storage - Copper tube bundle with internal and external grooves - second setpoint management - 19 mm thermal insulation (option) - complete management of compressors with start-up - Built-in oil separator sequence, timer and operating time balancing - Victaulic type coupling - self-regulating and proactive functions with adjustment of - Maximum pressure, water side, of 10 bar (21 bar as option) settings on drift control ■ Economiser function (available on models - continuous power control slide system on the compressors designated by the figure 8) according to the thermal requirements - management of compressor short cycle protection - 1 brazed plate heat exchanger on each refrigerating circuit - phase reversal protection - Refrigerant flow rate controlled by an electronic expansion - management of occupied/unoccupied modes (according to valve the time schedule) - The economiser function allows the cooling capacity to - equalisation of compressor operating hours be significantly increased and provides considerable optimisation of the machine's energy efficiency - condensing temperature limitation (option) ■ Refrigerant accessories - diagnosis of fault and operating statuses - management of a fault memory allowing a log of the last - Dehumidifier filters with rechargeable cartridges 50 incidents to be accessed, with operating readings taken - Hygroscopic sight glasses when the fault occurs - Electronic expansion valves - blackbox memory ■ Regulation and safety instruments - master/slave management of two machines with equalisation of operating hours and automatic switching - High and low pressure sensors - in case of a machine fault - Safety relief valves on refrigerating circuit - weekly and hourly time schedule for the machine, including - Evaporator antifreeze protection sensor 16 periods of absence - Chilled water and hot water control sensors - display of all machine parameters (3 access levels, User/ - Electronic evaporator water circulation controller Maintenance/Factory, password-protected): temperature, ■ Electrical cabinet setpoints, pressures, flow rate, operation time. - Electrical cabinet index of protection IP23 - display of trend curves for the main values - Safety disconnect switch - storage of maintenance manual, wiring diagram and spare parts list. - 24 V control circuit ■ Unit construction - Remote control transformer circuit - Electrical cabinet in graphite grey (RAL 7024) - Protection of the power and control circuits - Compressors in grey (RAL 7037) CATALOGUE 2021 535 535