Advanced back-to-back two-stage compressor naturally balances both radial and axial thrust on shaft.
Simple and robust ceramic bearing system enables refrigerant lubrication that doesn’t
request oil lubrication which is requested by conventional chillers. Customers won’t be
troubled by oil related failures as well as maintenance cost and efforts.
High tier variable speed starter equipped with harmonic filter(optional), total harmonic distortion
(THD) ≤5% and fully complies with IEEE519 standard.
Swift restart - 19DV can restart within 30 seconds (with UPS) after power recovery and
achieve to required cooling load more rapidly, especially reliable for data center application
Carrier back-to-back two-stage compressor integrated with inter-stage economizer which improves both cooling capacity and efficiency.
High speed direct drive motor reduces mechanical loss by 75% resulting from the removal of gear driven system.
By application of refrigerant lubricated ceramic bearings, the efficiency decline by oil in heat
exchangers is not existed in 19DV.
Pioneer falling film evaporator is designed for low pressure refrigerant, which performs a significantly enhanced heat transfer efficiency by mitigating submergence effect especially at part load conditions.
High performance tubing with internally and externally enhanced fins improves chiller efficiency by reducing overall resistance to heat transfer.
GreenspeedTM variable speed control gives a moment-to-moment control of compressor speed to adapt building load changes perfectly, which ensures the chiller always operating efficiently at both full load and part load