AHI Carrier Catalog | Page 167

AIR-COOLED LIQUID CHILLERS 30XAS 242-482 Operating limits °C Minimum Maximum Evaporator water flow rate (l/s) Water entering temperature at start-up - 45* 30XAS Minimum Maximum* Water entering temperature during operation 6.8 21 242 3.2 30.7 Water leaving temperature during operation 3.3 15 282 3.7 30.7 342 4.4 30.7 442 5.8 41.0 482 6.5 41.0 Note: If the leaving water tem perature is below 4°C, a glycol/water solution or the frost protection option must be used. Condenser air temperature °C Minimum Maximum -20 68 Standard unit -10 55** With option 28: winter operation -20 55** With option 119: high energy efficiency*** -10 55**** * Storage The maximum water flow rate corresponds to a pressure drop of 100 kPa. COOLING Evaporator water temperature Operation: Note: If the air temperature is below 0°C, a glycol/water solution or the frost protection option must be used. * ** *** **** Based on the installation type and the air temperature Part load, based on the water temperature Recommended for operation above 46°C Part-load operation Operating range HEATING HEATING 30XAS high energy efficiency unit or option 119 AIR TREATMENT Air entering temperature, °C Air entering temperature, °C 30XAS standard unit Evaporator leaving water temperature, °C Evaporator leaving water temperature, °C Legend Operating range, unirt equipped with option 28 "Winter operation" Below 0°C air temperature the unit must either be equipped with the evaporator frost protection option (41A or 41B), or the water loop must be protected against frost by using a frost protection solution (by the installer). Part load average CONTROLS C A R R I E R 2 0 1 6 / 2 0 1 7 167