Semi-hermetic refrigeration compressor SRC-XS series

twin-screwR22R134a

Semi-hermetic twin screw compressors with high efficiency integrated oil separator. Air conditioning (AC) and medium evaporating temperature (MT) applications. Refrigerants: R22, R407C, R404A-R507, R134a. 40¸390 HP for SRC-S screw compressors. 40¸60 HP for ultra-compact SRC-XS modular screw compressors. Capacity control (SRC-S compressors) achieved via a hydraulic system and a slide valve. The capacity control can be either "4-step" or "continuous" type. Capacity control (SRC-XS compressors) achieved through a by-pass system. "2- or 3-steps" available. Oil charge. High efficiency oil filter, replaceable without even removing the oil charge for SRC-S-785, 885 and 985. 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 SRC-S-785,885 e 985; optional for all the other models). 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 SRC-S-785, 885 and 985 can be supplied with an innovative double Vi control, which allows to swap the Vi from a value to an other even during compression phase.