Unit description Outdoor unit for the production of chilled water with hermetic rotary Scroll compressors, ozone-friendly refrigerant R410A, axial-flow fans, plate heat exchanger, micro-channel full-aluminum air coils and thermostatic or electronic expansion valve, according to the model. The range is composed by units equipped with two compressors in a single-circuit configuration. Version K - Standard efficiency, compact version LN-K - Key efficiency, compact and low-noise version SL-K - Key efficiency, compact and super low-noise version CA - Class A of efficiency LN-CA - Low Noise, Class A of efficiency SL-CA - Super Low noise version, Class A of efficiency Configurations - - basic function D - partial condensing heat recovery function Features ELECTRONIC EXPANSION VALVE SUPPLIED STANDARD The use of the electronic expansion valve generates considerable benefits, especially in cases of variable demand and different external conditions. It has been introduced into these units as a result of accurate design choices concerning the cooling circuit and the optimisation of operation in various different working conditions. The electronic expansion valve comes standard in the high-efficieny CA version, optional for the compact K versios.