Copeland Compressor 4DJXR28ML-TSK-C23

08/12/2020

Precautions when handling industrial chiller refrigerant

1. Before starting the refrigeration compressor of the chiller to pump the refrigerant, short-circuit the contacts of the pressure relay and the oil pressure difference relay on the refrigeration compressor control circuit.

08/16/2020

What are the precautions for installing the piston ring of ammonia refrigeration accessories

Piston ring is a small part of piston compressor in ammonia refrigeration system. It is used as a metal ring for sealing inside the piston. The piston ring includes a gas ring and an oil ring. It may seem small but it plays an important role.

09/10/2020

Air compressor lubricant replacement standard and market analysis

1. The selection criteria of air compressor oil 　　1) Oil selection: mineral oil, semi-synthetic oil, synthetic oil (synthetic oil is mainly PAO series) 　　2) Pour point: ≤-10℃ 　　3) Flash point: ≥180℃ 　　4) Acid value: 0.2 　　5) Performance requirements: good oxidation resistance, anti-emulsification, and less residual carbon

05/02/2023

Types of Compressors for Air Conditioning and Refrigeration Applications

The compressor is the core energy-consuming component of the refrigeration system, and the capacity and characteristics of the compressor determine the performance of the refrigeration system.

08/13/2020

Maintenance method of chiller cooling tower equipment

We understand that domestic cooling water towers are structures used for cooling water in power plants, and the general height is determined by the size of the power plant units.

07/27/2020

Do you know the reasons for the attenuation of the cooling capacity of the screw refrigeration unit?

Lithium bromide absorption refrigeration units are a type of refrigeration equipment that will inevitably produce cold capacity attenuation.

08/02/2020

How to debug McQuay air conditioner noise

Noise caused by thermal expansion and contraction when the wall-mounted machine is working: The noise caused by the stepper motor and the synchronous motor. The main reason is that the internal gears of the motor are poorly matched to form abnormal noise.

07/14/2020

Compressor 9 types of faults and hazard analysis are all here! ! !

Compressor 9 types of faults and hazard analysis are all here! ! ! 1. Common faults of compressor — start with liquid Starting with fluid is a problem that easily occurs when the machine is stopped. During shutdown, the refrigerant will migrate from the system back to the compressor and deposit in the lubricant.

06/29/2020

Compression ratio of American Copeland compressor

12/09/2021

Differences Between Smart Pressure Transmitter and Analog Pressure Transmitter

Pressure transmitter is composed of single chip microcomputer and micro displacement (differential) pressure sensitive element, which can complete multi-function detection and conversion from non electric quantity to electric quantity.