TWO-STAGE CENTRIFUGAL LIQUID CHILLERS
Nominal cooling capacity 2800 - 10500 kW
Interstage economizer Two-stage compressor Industry-leading Efﬁciency with VFD Wide Application Stable Operation Low Sound Level Modular Construction
The Carrier 19XR/19XRV with a COP up to 6.5 (AHRI conditions) and an IPLV up to 7.4 or up to 10.5 with VFD centrifugal chillers provide exceptional value by achieving energy efﬁciency levels as high as 6.8 (EER) utilising proven technology designed speciﬁcally for chlorine-free refrigerants: Interstage economizer to improve efﬁciency and increase capacity. Unique concept of the hermetic compressor: - Dual-stage aerodynamic impeller - Vane-less diffuser to meet high lift application requirement with stable operation - Motor cooled by spraying liquid refrigerant on the motor windings. Possibility to control the compressors using a variable frequency drive (19XRV) to maximise machine energy efﬁciency. Use of high-efﬁciency evaporator and condenser tubes Expansion sub-cooler integrated into the condenser Patented ﬂoat valve technology for optimised sub-cooling and refrigerant level in the evaporator These advantages, together with the modularity of the units and their efﬁciency, economical operation and dimensional constraints allow the use of the Carrier 19XR/19XRV two-stage centrifugal chillers in any high-capacity water cooling applications such as air-conditioning, heat-pump, energy recovery, ice thermal storage, marine, VFD and high-voltage applications.