Copeland Compressor ZF09K4E-TFB-256

08/11/2020

The design points of capillary refrigeration system

1. On the high-pressure side of the refrigeration system, do not install a liquid reservoir, and try to reduce its effective volume on the premise that the condenser can contain all the refrigerant.

04/20/2023

Diagnosis and Troubleshooting of Refrigeration Compressor Failure

The main content of the following is the failure diagnosis and troubleshooting related to the refrigeration compressor system. After reading the following content, you will know how to diagnose a refrigeration compressor failure.

01/15/2022

Case Studies of How to Replace a Compressor in Refrigerator (Part Two)

As we have mentioned in the first part, it’s the refrigeration capacity, the clean piping system, and the drying filter that deserve our attention.

08/14/2020

What should I do if the screw compressor fails

Nowadays, in the summer, the use of air conditioners is increasing. If the screw compressor fails, how to repair it? First, check out where the fault is. After the inspection, repair or replace the damaged parts, as follows:

06/14/2020

EM compressor explosion diagram

EM compressor explosion diagram

07/20/2020

Before replacing the compressor, remember to do 10 things first, remember

Before replacing, you must check the cause of the damage to the original refrigeration compressor and replace the defective parts. Because damage to other components will directly cause damage to the refrigeration compressor, remember!

01/11/2021

Fifty questions about maintenance of common faults of Mitsubishi Heavy Industries air conditioners!

Fifty questions about maintenance of common faults of Mitsubishi Heavy Industries air conditioners! Fifty-questions-about-maintenance-of-common-faults-of-mitsubishi-heavy-Industries-air-conditioners Mitsubishi Heavy Industries air conditioning commo器2䀀
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07/07/2020

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

03/02/2021

Advantages and disadvantages, function and service life of brushless motor

Advantage: (1) No brush, low interference When the brush is removed from the brushless motor, the most direct change is that there is no electric spark generated when the brushless motor is running, which greatly reduces the interference of electric spark to the remote control radio equipment.

03/01/2021

Performance characteristics of Panasonic Minas series Panasonic AC servo

The output power of Panasonic AC servo motor is generally 0.1-100 W, and the power frequency is divided into 50 Hz, 400 Hz, etc. It is widely used in various automatic control and recording systems 1.Miniaturization design 1) Through the best thermal analysis of the driver, the miniaturization is realized. Compared with the past, the volume is 75% and the weight is 80% 2) The new punching process of thin die steel plate has greatly reduced the iron loss, shortened the motor length (70% in the past) and reduced the number of drive models. It adopts current grading method to prepare and maintain. One driver is suitable for multiple motors and can identify automatically.