Anritsu OTDR Optical Time-Domain Reflectometer MT9812B

07/07/2020

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

08/20/2024

Direct Cool vs. Frost-Free Refrigerators: Comparison of Advantages and Disadvantages

The refrigeration method used by early refrigerators was direct cool type. The biggest disadvantage of direct cool refrigerators is that the refrigerator will frost after a period of use, so manual defrosting is required.

06/14/2020

Ten causes of air-conditioning compressor burnout

Ten causes of air-conditioning compressor burnout 1. The air conditioner compressor starts frequently

08/26/2021

What is a Knock Sensor?

Cars have an airbag that everyone doesn't want to use because it plays a role in car collisions, but the airbag is on standby all the time, with the effect of a knock sensor

07/16/2020

Vacuum leak test method for small cold storage equipment

Refrigeration systems with evaporating pressure gauges close to or below atmospheric pressure must be tested for vacuum leak tests, leaving the refrigeration equipment under proper vacuum for a certain period of time, reflecting and observing whether air has penetrated into the system from the reading of the vacuum pressure gauge for inspection The sealing performance of the cold storage equipment system.

08/08/2020

How to prevent freezing of central air conditioning in winter

How to prevent freezing of central air conditioning in winter In winter, the temperature is getting lower and lower, even exaggeratedly saying that there is a feeling of freezing, so you should not hesitate to prepare for the cold.

08/20/2020

The installation and use of air-conditioning are particular about these skills

The air conditioner is our favorite when it's hot, and when it's hottest, the air conditioner often turns on the shaft and can't stop for a moment. Some friends even bought an air conditioner and installed it when the weather was too hot.

09/07/2020

Comprehensive classification knowledge of air compressors

Classification of air compressors Air compressors are divided into: 　　1, speed type; 　　2, volumetric type; volumetric type is divided into rotary and reciprocating;

06/27/2020

Compressor installation

　　　　　　　　　　　　　　 Chapter 1 General Provisions 　　 Article 1 This chapter is applicable to the installation of reciprocating piston type, screw type, vane type and membrane type positive displacement compressors.

08/11/2020

What role does the air conditioning and refrigeration cabinet in the computer room play

What role does the computer room air-conditioning and refrigeration cabinet play? The hot aisle/cold aisle cabinet layout method is adopted by modern data centers and is also recognized as the best layout method for data centers.