York HVAC Catalogue 2018 EN 2019 EN | Page 26

YLRA Air cooled heat pump scroll compressor Cooling capacities from 181 kW to 307 kW Heating capacities from 200 kW to 327 kW At Eurovent Standard Conditions all models meet A Class energy efficiency levels for heating mode. Features Options / Accessories YLRA are available in 6 models, from 200 to 330, with a nominal capacity range from 181 to 307 kW in cooling mode and from 200 to 327 kW in heating mode. Up to 3.99 ESEER with EC fans. • ModBus protocol kit for BMS (standard) • Lonwork protocol kit for BMS • Bacnet protocol kit for BMS • Soft start • Power factor correction capacitors • Compressors overload protection • Condensing control kit (down to -14°C ambient temperature in cooling mode) • Polar version (down to -18°C ambient temperature in heating mode) • Double set point • HP & LP manometers • E-coating Al/Cu condenser coils • Chiller grilles • Desuperheater • Optional hydro kits • Remote ON/OFF control • Remote keyboard panel • Sequencer unit • Spring isolators • Flow switch • Water filter Except for the fans all the units have the same configuration of base units (structure, electrical board, compressors and coils). Each model is available in the following acoustic versions: • Basic Low Noise version (BLN): These models are equipped with delta connected fans running at a fixed rpm and are fitted with compressor boxes to reduce noise emissions. • Super Low Noise version (SLN): Those models are equipped with special inverter fans driven by EC (electronic brushless type), fitted with a variable speed controller which allows the fans to operate at a very low rpm. The chillers are supplied with compressor boxes and soundproof jackets on compressors reducing significantly the noise emissions. The BLN model is also available in an EC version (developed for high seasonal efficiency) which has the same equipment as that of the standard BLN model, except that the units are equipped with special inverter fans driven by EC (electronic brushless type) motors with integrated electronic inverter, to ensure low energy consumption. 26