DYNACIATTM LGN Water chillers Without condenser eleCtRiCalspeCiFiCations ■ Short circuit current withstand capability (TN system)(1) DYNACIATTM LGN 080 090 100 120 130 150 180 200 240 260 300 Value without upstream protection Short time assigned current (1s) - Icw kA eff 3 3 3 3 3 3 3 3 3 3 3 Allowable peak assigned current - Ipk kA pk 6 6 6 6 6 6 6 6 6 6 6 Value with upstream protection Conditional short circuit assigned current Icc kA eff 40 40 40 40 40 40 40 40 40 40 40 Associated Schneider circuit breaker - Compact type range(2) NSX 100N DYNACIATTM LGN 360 390 450 480 520 600 Value without upstream protection Short time assigned current (1s) - Icw kA eff 5,5 5,5 5,5 5,5 5,5 5,5 Allowable peak assigned current - Ipk kA pk 20 20 20 20 20 20 Value with upstream protection Conditional short circuit assigned current Icc kA eff 154 154 154 154 154 154 Associated Schneider circuit breaker - Compact type range(2) NSX 100N (1)Type of system earthing (2)I f another current limiting protection device is used, its time-current trip and I²t thermal stress characteristics must be at least equivalent to those of the recommended Schneider circuit breaker. The short-circuit withstand values given above were determined for the TN system. intelligentlydesignedaCoUstiCs- To comply with the various restrictions on integration, the DYNACIATTMhas two sound finish levels enabling it to be easily integrated into a number of zones without causing disruption to users or their neighbours. ■ Basic version ■ Acoustic signature The distinguishing feature of the DYNACIATTMrange is its As important as the sound power level, the acoustic signature rigorous design incorporating "noiseless" assembly techniques reflects the noise disturbance generated by the unit. to reduce vibrations and sources of noise: The installation of a variable-speed pump enables the sound level of the pump function to be reduced by adjusting the pump - New generation scroll compressors with a continuous speed to what is strictly necessary. The soft start improves the scrolling motion to lessen vibrations signature and reduces nuisance noise. - Compressor structure separated from the unit by With all these benefits and its two acoustic finish levels anti-vibration mounts (Standard and Xtra Low Noise),the DYNACIATTM ensures any environmental noise constraints can be met. - Pipes separated from the unit structure ■ Low Noise option In this version, the compressors are housed inside noise insulating jackets. 494 494 CATALOGUE 2021