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
  • 2020 CPhI China The 20th World Pharmaceutical Raw Materials China Exhibition

    2020 CPhI China The 20th World Pharmaceutical Raw Materials China Exhibition

    December 17, 2020December 16-18 Booth number: W5P08 Shanghai New International Expo Center (Pudong)view
  • 483Meet Your Dream Equipment for Distillate CBD Extraction

    483Meet Your Dream Equipment for Distillate CBD Extraction

    February 6, 2021If you need equipment to distill CBD, you need to scrutinize your choices, as the equipment can vary in its features and design. When you use equipment that produces a CBD distillate, you want to seek out a system made by a manufacturer that provides proven and reliable products. You should also work with a business that can train you on the use of the equipment you buy.view
  • Won the second place in the 2022

    Won the second place in the 2022

    December 5, 2022On November 18, 2022, it was sponsored by the Jiangsu Provincial Association for Science and Technology, the Provincial Taiwan Affairs Office, the Provincial Department of Industry and Information Tec...view
  • LNEYA won the title of Jiangsu Provincial Gazelle Enterprise in 2022

    LNEYA won the title of Jiangsu Provincial Gazelle Enterprise in 2022

    January 13, 2023Recently, the Jiangsu Provincial Productivity Promotion Center officially released the evaluation results of the unicorn enterprises and gazelle enterprises in 2022 in Jiangsu and the high-tech zone, ...view
  • Approaching LNEYA 5 Main Products

    Approaching LNEYA 5 Main Products

    January 11, 2018Industrial Chiller:Industrial Chiller varies from dynamic temp. Special Chiller:Special Chiller consist of Multi-reactor chiller (TCU).Environmental Chamber:The test object is connected to a testing adapter. Industrial Freezer:Industrial freezer consist oview
  • The Analysis Of Ultra Low Freezer'S Price

    The Analysis Of Ultra Low Freezer'S Price

    July 4, 2018What are the characteristics and functions of ultra low freezer: 1. Ultra low freezer can prevent the precision of machine equipment from being influenced by the change of oil temperature in the proce...view
Related Products
  • SLJ -110℃~-150℃

    SLJ -110℃~-150℃

    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
  • Single Fluid Heat Transfer System SR

    Single Fluid Heat Transfer System 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 Temperature System ZLF

    Reactor Temperature System 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
  • LT -45℃~30℃

    LT -45℃~30℃

    April 10, 2018Low Temperature Cooling Chiller LT model: LT-5018N,LT-5040N,LT-5062N,LT-5090N,LT-50A1N,LT-50A2N;view
  • TES -45℃~250℃

    TES -45℃~250℃

    February 28, 2019-45℃~+200℃ 2.5kW~25kW ±0.3℃view
  • TES  -85℃~200℃

    TES -85℃~200℃

    February 28, 2019Temperature control range:-85 ° C ~ 200 ° CPower range:2.5kW~25kWTemperature control accuracy:±0.3°CModelTES-8525WTES-8555WTES-85A10WTES-85A15WTES-85A25WTemp. Range-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃Heating P...view
products
Contact US
Tel: + 86 18751545184
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat