Contrinex Sensor DW-AD-605-C5

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

06/28/2020

Hitachi compressor model sample parameters

Hitachi compressor model sample parameters W Cooling Capacity Btu/h COP (A) Compressor (B)

08/11/2020

The latest inspection standards for ammonia-related refrigeration enterprises

In order to strengthen the safety of the use of liquid ammonia in ammonia refrigeration enterprises, comprehensively improve the intrinsic safety level of the use of liquid ammonia in the enterprise

06/27/2022

How to Test an Encoder with a Digital Multimeter

A basic multimeter can be utilized to measure the encoder’s parameters. Bear in mind that a digital multimeter can measure the average duty cycle, frequency, peak voltage, and average voltage of an encoder.

07/19/2020

Basic knowledge of refrigeration compressor

After shutting down, stop for at least 3 minutes before starting again to eliminate the pressure difference between the compressor inlet and outlet. Because in the case of a large pressure difference, the starting torque of the motor will increase, causing the current to rise to a certain level, the protector will act and the compressor cannot continue to run.

08/20/2020

Causes of frosting of cold storage compressors and solutions

Frosting at the return port of a cold storage compressor is a very common phenomenon in refrigeration systems. Under normal circumstances, system problems will not occur immediately,

09/09/2020

What is the purpose of the accessories of the air filter

The internal automatic drain and the external automatic drain in the air filter accessory are used to automatically discharge the mixture of oil, water and dust filtered by the filter element to reduce the influence of human factors on the filtration efficiency of the system.

07/23/2020

Analysis of common failure causes of hermetic refrigeration compressors

1. How to identify the 3 terminals on the casing of a hermetic compressor?<br></br> The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.<br></br>

06/30/2020

Common faults and causes of compressors

Common faults and causes of compressors Common compressor failures are as follows: 　　L. The compressor cannot start normally 　　 The power supply voltage is too low, the motor circuit is poorly connected, or the exhaust valve is leaking, resulting in too high pressure in the crankcase. The energy regulation mechanism has failed.

08/18/2020

Precautions for the selection of fan coils for large central air conditioners

The fan coil unit is an important component in a large central air-conditioning system. Its selection will directly affect our usage, such as cooling effect, power consumption, noise impact, etc.