Compact screw compressor

Semi-hermetic twin screw compressors with high efficiency integrated oil separator. Air conditioning (AC) and medium evaporati Semi-hermetic twin screw compressors with high efficiency integrated oil separator. Air conditioning (AC) and medium evaporating temperature (MT) applications. Refrigerants: R134a. 70¸300 HP for 134-S screw compressors. 40¸60 HP for ultra-compact 134-XS modular screw compressors. Capacity control (134-S compressors) achieved via a hydraulic system and a slide valve. The capacity control can be either "4-steps" or "continuous" type. Capacity control (134-XS compressors) achieved through a by-pass system. "2-steps" for SRC-XS-050 and 060 or "3-steps" for SRC-XS-040. Oil charge. High efficiency oil filter, replaceable without even removing the oil charge for 134-S-240, 270 and 300. Crankcase heater. Wide range of accessories for lubrication monitoring available. Electronic motor protection device: motor temperature monitoring (oil temperature, motor rotation direction and phase failure monitoring available only for 134-S-240, 270 and 300). ECO port for increased performances and efficiency. Liquid injection or connection to an external oil cooling circuit to widen the application range at higher discharge temperatures (see Application Limits). While ordering, different built-in volumetric ratio can be chosen. On request the compressors 134-S-240, 270 and 300 can be supplied with an innovative double Vi control, which allow to swap the Vi from a value to an other even during compression phase. Special motors with different power supply available .

Compact screw compressor