AV series are no matter using refrigerant R22 or R134a, R404A, R507A, and R407C, the series compressors are able to be operating stably and reliably. The safe releasing pressure valve is installed between high and low pressure cavity; and the PTC temperature sensor is directly inserted into the discharge cavity of cylinder; the motor protecter is adopted the one of KRIWAN company from Germany, which has delay circuit controlling the compressor to start five minuters later after the stop of compressor, which efficiently protect compressor from failure.
The series compressor can be installed with device adjusing energy, making it reach the max efficiency under the condition part loaded or fully loaded. The compressors possess stable function and life using life and may widly apply to air conditon, heat pump, and other industrial refrigerating system.
