Unit description Outdoor unit for the production of chilled water with hermetic rotary Scroll compressors, axialflow fans, shell and tubes exchanger and thermostatic expansion valve. External panels in Peraluman and structure in aluminium sections. The range is equipped with two compressors on two independent refrigerant circuits. Version B - Basic HT - high efficiency, high outdoor temperature version LN - Low noise SL - super-low noise version Features REFRIGERANT GAS R410A The use of R410A allowed to achive better energy efficiencies with environment full respect (ODP = 0) EXCHANGER The shell and tube exchanger allows to achieve the highest flexibility on the units installation, keeping the efficiency at the maximum level. For this reason, NECS represents the best choice for all the hydronic application on the residential, commercial and industrial markets. INTEGRATED HYDRONIC MODULE The optional built-in hydronic module already contains the main water circuit components; it is available with single or twin in-line, for achieving both low or high head. MAXIMUM RELIABILITY Unit with dual-circuit refrigerant section designed to ensure maximum efficiency at full load, ensuring continuity without interruption of operation in the event of temporary stop of one of the 2 circuits.