York HVAC Catalogue 2018 EN 2019 EN | Page 105

YORK ® AIR-CONDITIONING PRODUCTS Indirect free cooling with adiabatic cooling Available accessories The indirect FREE COOLING system with adiabatic cooling includes both the technology of air-to-air heat recovery and that of adiabatic cooling, in which some water is evaporated to cool down outside air. Direct expansion: • Direct expansion, supplementary post cooling circuit with DC inverter compressors • Power supply line for remote condenser • Power supply line with speed regulator for remote condenser • Condensing regulation with 0-10V signal for remote condenser with EC fans • “LT Kit” for operation with low temperature outside air with remote condenser • Oversize liquid receiver • Check valves on the supply and liquid pipes • Water-cooled condenser • Water-cooled condenser with a condensing temperature adjustment valve • “HT Kit” for operation at high condensing temperatures Being able to exploit the FREE COOLING system even at temperatures of 30°C/35%Rh, these units achieve very high energy efficiency, offering energy savings of up to 80% compared to a comparative to a mechanical cooling system. An innovative evaporative panel In order to maximise the system efficiency, an innovative evaporative panel is used that allows saturation efficiency greater than 90% using more than 60% less water. Thanks to the OXYVAP ® system, formed by special formed and treated aluminium fins, it is possible to: Chilled water: • Chilled water, supplementary post cooling circuit with adjustment two-way valve • Three-way control valves • Inlet and outlet water temperature sensors • “Power valve” kit •  Use drinkable water. No expensive water demineralisation systems are required. •  Cut down on water consumption. Over 60% water reduction with respect to conventional evaporative panels and spraying systems. •  Eliminate the risk of mould, algae and pathogenic organism formation. The surface treatment of aluminium fins and the absence of a collection and water circulation tank eliminates the risk of pathogenic organism formation. Mechanical and structural: • Condensate drain and adiabatic panel discharge pump • Outside air flow motorised dampers • Inside air flow motorised dampers • Motorised damper for environment overpressure management • M5 efficiency class air filters Electrical: • Alternative voltages available: 460V/3ph/60Hz - 380V/3ph/60Hz - 230V/3ph/60Hz • Electrical supply line without neutral • Automatic transfer switch (ATS), “Basic” version • Automatic transfer switch (ATS), “Advanced” version Regulation: • Constant air flow control • Constant pressure control • Local network set up and connection cable • User terminal for remote installation • Flooding detection system Manufacturer reserves the rights to change specifications without prior notice. 105