Flooded Type Water Cooled Screw Chiller Technical Manual
2
It uses high-pressure injection oil return technology to ensure reliable oil-return in all working
conditions.
Accurate matching and higher energy efficiency:
Compressor provides stepless energy adjustment, which can accurately match with actual working
condition and save more energy;
Twin-compressor has parallel connection design and high seasonal energy efficiency;
Intelligent control system:
Visual Operation Control. The set information such as operating status, setting parameter and
failure alarm can reflect to controller and make easier operation and more comprehensible;
Balance control function. Unit automatically adjusts operation time of each system according to
operation status of compressor, which ensures roughly the same operation time of each system,
achieves balanced operation among multiple systems and ensures overall operation stability of
unit.
Unit can select manually or automatically ON/OFF at specified time which bring great convenience
to users. Unit can completely record the last twenty alarm records and occurrence time, providing
detailed information for after-sales maintenance;
It has complete protection function including over high pressure protection, less low pressure
protection, overload protection of compressor, superheat protection of coil, phase lost and reversal
protection, high/low voltage protection, oil level protection, high discharge temperature protection
of compressor, oil pressure difference protection of compressor, chilled water and cooling water
flow protection, overload protection of cooling tower fan and protection function for external linkage.
Multiple protection functions ensure reliable protection of unit at the first time in case of
abnormality and ensure safety of unit;
Optional remote network control function. It can be connected with communication interface of
computer or modulator through RS-485 protocol and easily connected to BAS of standard
industrial bus and public telecom switch network to monitor remote communication;
