NXP IC Integrated Circuit P80C552EFA

06/30/2020

The advantages of Copeland compressor car refrigerator

The advantages of Copeland compressor car refrigerator With the improvement of economic conditions, most of us have private cars, and even the public transport vehicles have improved very well. Traditional vehicles do not have on-board refrigerators, and today's vehicles can be modified to include on-board refrigerators.

08/21/2020

HVAC people collect these data, better than ten years of work experience!

HVAC people, we know that HVAC engineering includes many systems, the situation is complicated, and most of the pipes are hidden in tube wells, walls, ceilings, so the design process is very complicated, but don’t worry, we can step on the predecessors’ Go on your shoulders!

08/11/2020

How to budget for central air conditioning configuration

The standard central air-conditioning budget is roughly composed of three parts: a configuration table, a specific quotation and a detailed list of auxiliary materials.

09/06/2020

Application of synthetic compressor oil

At present, synthetic lubricants are widely used in the compressor field. Among them, oil-injected and oil-immersed rotary screw air compressors and large reciprocating compressors are one of the most used markets. For example, the sales volume of synthetic compressor oil in Western Europe was 6000t in the late 1980s, and it rose to 10000 in the early 1990s. The sales volume in the United States has exceeded 15,000 tons, and it is increasing at a rate of more than 10% per year.

09/10/2020

Basic knowledge of compressed air system

1. Compressed air Refers to air with an absolute pressure greater than 0.1Mpa Second, the prescribed working conditions of the screw air compressor Inspiratory pressure: 0.1Mpa (absolute pressure)

04/11/2025

Overview of Screw Refrigeration Compressor Technology

Screw compressors, also known as screw compressors, are divided into single screw compressors and twin screw compressors. The single screw compressor was developed by Sinn, France in the 1970s.

05/30/2023

Why Does My AC Compressor Turn on and off Repeatedly?

Under the control of the thermostat, generally the air conditioner will stop working when it reaches the set temperature. For example, when the indoor temperature is 35 °C, you turn on the air conditioner and set it to cooling mode

07/19/2020

Refrigerant filling operation method of centrifugal chiller

The centrifugal chiller refrigeration compressor after completing the work procedure of filling the frozen lubricating oil, the next step should be the refrigerant filling operation, the method of operation is: (1) using copper pipes or PVC (polyvinyl chloride) pipes One end is connected with the filling valve at the lower part of the evaporator, and the other end is connected with the top joint of the refrigerant storage tank to ensure good sealing.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

07/10/2025

Seven Reasons Why your LG Refrigerator Not Cooling

As times go by and society is developing, refrigerators make people’s life more convenient.