Copeland Compressor 4DK1-2500-TSK

08/20/2020

Methods of handling sudden failures of precision air conditioners

1. Leakage treatment steps for precision air conditioning units 　　Leak handling operation precautions: Never destroy the vacuum artificially. If it is not certain that the unit has indeed leaked air into the unit, operation cannot be performed.

02/13/2025

Advantages and disadvantages of screw refrigeration compressors

Screw refrigeration compressor is a rotary positive displacement compressor. It uses the change of the cogging volume and position of the screw to complete the process of vapor suction, compression and exhaust. Oil-free screw compressors came out in the 1930s, mainly used to compress air. Later, the oil-injected screw compressor appeared in the cylinder,

05/01/2024

Common Faults and Solutions of Servo Drives

Servo drive is a commonly used motor control device, commonly used in various automated production equipment and robot control systems.

06/27/2020

The sign of the normal operation of the refrigeration unit

The sign of the normal operation of the refrigeration unit 1. There is no knocking sound in the piston refrigeration compressor, the compressor is operating normally, the expansion valve opening is adjusted properly, and there is only compressor suction and exhaust sound during operation, and no knocking or other abnormal sounds are produced.

07/19/2020

Industrial chillers-(singde) the basic requirements for the selection of lubricating oil!

Lubricating oil is to provide lubrication and cooling conditions for the moving parts of industrial chillers. The lubricating oil used in refrigeration compressors is usually called refrigerating oil, which is a highly refined special lubricant. Lubricating oil is used in the refrigeration compressor to lubricate the moving parts and reduce the friction between the surfaces of the moving parts.

06/14/2020

Screw compressor oil system workflow and common faults

Screw compressor oil system workflow and common faults 1. Working process of screw refrigeration unit The working process of screw refrigeration unit can be divided into refrigerant process and oil system process. Friends who are familiar with screw uni器2䀀
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08/07/2020

Does the floor heating temperature always fail to rise Maybe this can be solved

At present, floor heating has been widely used and applied in many places in our country. However, many owners report that the temperature of their own water and floor heating in winter is not very ideal

06/14/2020

A compressor is a fluid machine that raises low-pressure gas to high-pressure gas

It sucks low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor

08/24/2020

Guidelines for the scientific wearing of masks by the public (revised edition) and summer air-conditioning operation management and use guidelines (revised edition) released

Guidelines for the scientific wearing of masks by the public (revised edition) and summer air-conditioning operation management and use guidelines (revised edition) released

06/29/2020

How the compressor works