DYNACIATTM LG Water chillers Heat pump Description of the main components ■ Compressors ■ Connect Touch control module - Hermetic SCROLL type - User interface with - Electronic motor overheating protection 4.3-inch touch screen - Crankcase heater - I ntuitive, user-friendly - Mounted on anti-vibration mounts navigation using icons ■ Evaporator - Clear text display of - Brazed-plate exchanger information available in - Plate patterns optimised for high efficiency 6 languages (F-GB-D-E-I- - 19 mm armaflex thermal insulation NL) ■ Condenser - Brazed-plate exchanger - Plate patterns optimised for high-efficiency The electronic control module performs the following main - 19 mm armaflex thermal insulation (optional) functions: ■ Refrigerating accessories - Regulation of the water temperature (at the return or at the outlet) - Regulation of the water temperature based on the outdoor - Dehumidifier filters temperature (water law) - Hygroscopic sight glasses - Regulation for low temperature energy storage - Electronic expansion valves - Second setpoint management - Service valves on the liquid line - Complete management of compressors with start-up ■ Regulation and safety instruments sequence, timer and operating time balancing - Low and high pressure sensors - Self-regulating and proactive functions with adjustment of - Safety valves on refrigeati gcircuit the control to counter parameter drift - Water temperature control sensors - Optimised defrosting with free defrost function to optimise - Evaporator antifreeze protection sensor performance at partial load and the SCOP - Factory-fitted evaporator water flow controller - I n-series staged power control system on the compressors ■ Electrical cabinet according to the thermal requirements - Management of compressor short cycle protection - Electrical cabinet with IP 23 protection rating - Frost protection (exchanger heaters) - A connection point without neutral - Phase reversal protection - Main safety switch with handle on front - Management of occupied/unoccupied modes (according to - Control circuit transformer the time schedule) - 24V control circuit - Compressor and pump runtime balancing - Compressor motor circuit breaker - Management of the machine operation limit according to - Compressor motor contactors outdoor temperature - Connect Touch microprocessor-controlled electronic control - Sound level reduction device (night mode according to the module user programme) with limitation of compressor capacity and - Wire numbering fan speed - Marking of the main electrical components - Diagnostics of fault and operating statuses ■ Casing - Management of a fault memory allowing a log of the last Frame made from RAL7035 light grey & RAL 7024 graphite 50 incidents to be accessed, with operating readings taken grey painted panels. when the fault occurs - Blackbox memory - Master/slave management of the two machines in parallel with operating time balancing and automatic changeover if a fault occurs on one machine - Weekly and hourly time schedule for the machine, including 16 periods of absence - Pump standby based on demand (energy saving) - Calculation of the water flow rate and operating pressure (hydraulic module version) - Electronic adjustment of the water pump speed and water flow rate (variable-speed pump option) - Display of all machine parameters (3 access levels, User/ Maintenance/Factory, password-protected): temperature, setpoints, pressures, water flow rate (hydraulic version), runtime. - Display of trend curves for the main values - Storage of maintenance manual, wiring diagram and spare parts list. CATALOGUE 2021 509 509