Wuxi Guanya Refrigeration Technology co., ltd

Three Common Failures Of Air Cooled Screw Chiller

Three Common Failures Of Air Cooled Screw Chiller

We often hear about kinds of water chillers, such as air cooled screw chiller. Today we are going to talk about three kinds of common failure of air cooled screw chiller.  I hope it can help you!

1. Communication Failure:

Computer controller controls various modules by telecommunication lines and total interface board, so the main cause of communication failure is poor contact or break of communication lines, especially the interface oxidation and damp of the interface.  Also, the failure of unit electronic board or total interface board, incorrect choice of address dial code switch and power failure can cause the communication failure.

2. Low Voltage Failure:

The low suction pressure of the compressor results in low pressure protection relay action. The suction pressure of the compressor reflects the evaporation pressure, whose the normal value should be 0.4~ 0.6mpa, and the protection value is set to 0.2mpa. Low suction pressure causes low return air volume and insufficient cooling capacity, resulting in waste of electrical energy and the heat dissipation of the motor of gas cooled compressor which is easy to damage the motor.

3. High Voltage Failure:

High exhaust pressure of compressor results in high voltage protection relay action. The compressor exhaust pressure reflects condensation pressure whose normal value should be 1.4~ 1.6mpa, and the protection value is set to 2.0mpa. If the pressure is too high for a long time, it will cause too large of the current of compressor, which is easy to burn the motor and damage the compressor exhaust valve disc.

Related News
Related Products
  • Water Cooled Chiller SLJ

    Water Cooled Chiller SLJ

    January 11, 2018Temperature ranges from - 5 ~ - 150 ℃, can meet different temperature; Adopt environmental protection refrigerants; Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK.view
  • High-Low Temperature Test Chamber

    High-Low Temperature Test Chamber

    March 30, 2018Performance characteristics:1. In the refrigeration system, the condensation adopts air cooling mode, which has a wide temperature control range, which can meet the user's various needs.2. With a unique b...view
  • Humidity Test Chamber

    Humidity Test Chamber

    April 8, 2018Performance characteristics: 1. With wide temperature control range, can meet the user's various needs.2. With a unique balanced temperature control method, with stable and balanced heating capacity, high precision and high stable temperature control canview
  • Single Fluid Heat Transfer TCU SR

    Single Fluid Heat Transfer TCU SR

    April 10, 2018Working temperature range from -25℃to 200℃, other temperature range need to set to the widest temperature range(-50℃to 250℃) Centralized control of 2~20 reactors, each reactor's and jacket temperature can be set independently. One system control multipleview
  • Reactor Material TCU ZLF

    Reactor Material TCU ZLF

    April 10, 2018A set of cooling heat exchanger, heat exchanger, through proportional adjusting valve control cold heat into the heat exchanger, then through the uniform medium input to the reactor jacketed to do heat exchange and temp. Control, system has inside expansiview
  • Small Gas Condensing System

    Small Gas Condensing System

    April 10, 2018ModelHQ-0540HQ-1040HQ-2540HQ-5040HQ-0575WHQ-1075WHQ-2575WHQ-5075WGas flow5m3/h10m3/h25m3/h50m3/h5m3/h10m3/h25m3/h50m3/hLowest Temp.-40℃-40℃-40℃-40℃-75℃-75℃-75℃-75℃Primary Temp.There is no-20℃...view
Tel: + 86 13912479193
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat