HYDROCIATTURBO TMLWT Water chillers Heat pump Electrical data notes for standard units LWT 1400 1900 2100 2300 2600 3100 3400 3800 4200 Power circuit supply Nominal voltage V-ph-Hz 400-3-50 Voltage range V 360-440 Control circuit supply 24 V via the built-in transformer Maximumoperating input power- Standard unit(1) Circuit (a)1 kW 140 201 230 76 116 111 133 187 222 Circuit (a)2 kW - - - 152 152 222 204 187 222 Single power connection point option kW - - - 229 269 333 337 375 445 Nominaloperating current draw- Standard unit(2) Circuit (a)1 A 162 208 244 93 129 119 151 210 243 Circuit (a)2 A - - - 185 187 237 229 210 243 Single power connection point option A - - - 278 315 356 380 420 486 Maximumoperating current draw (Un)(1)- Standard unit Circuit (a)1 A 220 315 361 119 183 174 209 294 349 Circuit (a)2 A - - - 239 239 349 319 294 349 Single power connection point option A - - - 358 422 523 528 588 697 Maximumcurrent (Un-10%)- Standard unit(1) Circuit (a)1 A 237 340 390 129 197 188 225 318 377 Circuit (a)2 A - - - 258 258 377 345 318 377 Single power connection point option A - - - 387 456 565 570 635 753 Maximumstart-up current(Un) - Standard unit(3) Lower than max current Dissipatedpower of electrical equipment(1) W 782 1249 1249 1144 1347 1814 1884 2351 2351 Short-circuit whistand current (TN system) Circuit A+B KA 50 50 50 50 50 50 50 50 50 (1)Values obtained at unit continuous maximum operating conditions (data given on the unit nameplate) (2)Standardised EUROVENT conditions, water-cooled exchanger water inlet/outlet = 12°C/7°C, condenser entering/leaving water temperature = 30°C/35°C (3)Start-up current is limited by the soft-start controller included in the compressor. (a)When the machines are equipped with two power supplies, circuit 1 supplies the refrigerant circuit A and circuit 2 supplies the refrigerant circuit B Note: Evap. single pump power/control circuit and Cond. single pump power/control circuit options are not included in these values. LWT 1400 1900 2100 2300 2600 3100 3400 3800 4200 Short-circuit whistand current (TN system) Circuit A+B KA 50 50 50 50 50 50 50 50 50 (1)If another current limitation protection device is used, its time-current and thermal constraint (I²t) trip characteristics must be at least equivalent to those of the recommended protection. Note: The short-circuit stability current values above are suitable with the TN system. 566 566 CATALOGUE 2021