Yaskawa VFD Frequency Converter CIMR-V7CA20P4

08/02/2020

How to choose a mobile cold storage

Mobile cold storage is also called combined cold storage, movable cold storage, and assembled cold storage. It is a new type of cold storage corresponding to the traditional civil cold storage.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

09/06/2021

Why is Your Car AC Starting and Stopping Frequently?

Many car owners are puzzled to find their air conditioners starting frequently while driving. In fact, the normal start and stop period of the air conditioner

06/14/2020

Refrigeration compressor failure phenomenon and determination method

Refrigeration compressor failure phenomenon and determination method 1. How to identify the three binding posts on the casing of the hermetic compressor? Running end (R), starting end (S), common end (C), the resistance between RS is greater than that器2䀀
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09/10/2020

Advantages of air compressor equipped with permanent magnet synchronous motor

1. High efficiency The high efficiency mentioned here does not only mean that the efficiency of the rated power point is higher than that of the ordinary three-phase asynchronous frequency modulation motor, but refers to its average efficiency in the entire speed range. The excitation field of the permanent magnet synchronous motor is provided by the permanent magnet.

11/04/2022

6 Common Electric Motor Failures and Solutions

Electric motors are widely applied in production, transmission, and distribution. But failures could occur due to wrong operation, insufficient maintenance, etc

07/20/2020

What are the specific operation methods for the maintenance of cold storage screw compressors?

　 Before the cold storage screw compressor must be overhauled, if possible, unload the slide valve to the "0" position, shut down normally, and cut off the power supply. The pipeline connected to the compressor should be cut off and the refrigerant and lubricating oil in the compressor should be discharged before the compressor can be disassembled.

08/21/2020

Trouble phenomenon the air conditioner is not cooling, the outdoor unit starts and stops frequently

When the air conditioner is frequently used in summer, many friends will encounter this problem, that is, the outdoor unit of the air conditioner frequently starts and stops, but the indoor unit is not cooled.

03/02/2025

Carrier Central AC Error Codes ＆Troubleshooting (Detailed Steps)

The following gives a table of Carrier central air conditioner common error codes and troubleshooting methods for some of these codes.

08/05/2020

System handling guide after the refrigeration compressor is damaged

The refrigeration compressor in the refrigeration system cannot be directly replaced with a new compressor after it is damaged, because there may be some incentives for the refrigeration compressor to be damaged in the system