AHI Carrier Catalog | Page 201

AIR-COOLED LIQUID CHILLERS  30XAV 500-1150 No. Description Advantages Use 30XAV 230V electrical plug 284 230V AC power supply source provided with plug socket and transformer (180 VA, 0,8 Amps) Permits connection of a laptop or an electrical device during unit commissioning or servicing 500-1150 Expansion tank 293 6 bar expansion tank in the hydraulic module (require option 116) Protects closed hydronic circuit from excessive pressure Sizes 500/600 only Fast Capacity Recovery QM295 New software algorithms to allow quick restart and fast loading while preserving unit-reliability Full capacity recovery in less than 5 minutes after power failure. Matches requirements of typical critical missions applications 500-1150 Carrier Connect link (BSS regions only) 298 3G router board NOTE 1: require option 149 NOTE 2: when more than one machine is installed on site, only one of them shall be equipped with option 298 while all of them must be equipped with option 149 NOTE 3: if a CARRIER-PSM is on site, option 298 shall be integrated in the PSM while option 149 is still mandatory for each single unit. Enabler for Carrier Connect service offer 500-1150 Variable Water Flow control 299 Hydronic control function package that permits control of the water flow rate based on different possible logics (at customer choice): constant ∆T, constant outlet pressure and "fixedspeed" control. When variable-speed pumps on the primary circuit, the VWF control modulates flow rate through the evaporator, minimising pump consumption while ensuring safe/ optimised chiller operation 500-1150 ■■ The 30XAV is designed for high performance both at full and part load: ESEER up to 4,9 and EER up to 3,4. ■■ The high energy efficiency is reached through: -- Inverter-driven twin-rotor screw com pressors allowing precise capacity control and reducing unit power input, especially at part-load -- Inverter-driven fan motors minimising power consumption while granting optimum air flow -- All aluminum condenser with high-efficiency microchannel coils technology -- Flooded shell-and-tube evaporator characterised by high efficiency of heat exchange -- Electronic expansion device permitting operation at a lower condensing pressure and improved utilisation of the evaporator heat exchange surface (superheat control) -- Economiser system with electronic expansion device for increased cooling capacity. ■■ Optimised electrical performance: -- Negligible start-up current (value is lower than the maximum unit current draw) -- High displacement power factor (above 0.98) -- EMC compliancy with Class 3 requirements of the EU standard EN61800-3 (Class 2 is possible as an option). C A R R I E R 2 0 1 6 / 2 0 1 7 Built-in reliability and easy ­servicing The 30XAV units offer increased global performance as well as Carrier’s acclaimed product quality and reliability. Major components are selected and tested to minimise failures possibility, as well as many design choices have been taken in this perspective. ■■ Screw compressors with Greenspeed® Intelligence: -- The screw compressors are industrial-type with oversized bearings and motor cooled by suction gas, with a proven failure rate lower than 0.1%. -- The inverter is specifically sized for each compressor motor to ensure reliable operation and easy ­maintenance. -- All components related to the compressor assembly are easily accessible on site minimising down-time. ■■ Fans with Greenspeed® Intelligence: -- 4th generation of Flying Bird fans equipped with inverter-driven asynchronous motors -- The inverter is sized to manage a group of fan motors reducing first cost while ensuring optimum air flow management. -- The inverters for fan speed control are easily ­accessible on site for easy servicing. CONTROLS Low energy consumption AIR TREATMENT Features and advantages HEATING HEATING COOLING Options 201