Chint Circuit Breaker DZ47LE-32 C32 3P

06/14/2020

Problems and case analysis of electronic expansion valve and four-way valve

Problems and case analysis of electronic expansion valve and four-way valve 1. The problem of electronic expansion valve 1 　　Identify the quality of electronic expansion valve: 　　Step one (see): Whether the wiring is plugged in place and whether the c器2䀀
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06/29/2020

How the compressor works

08/24/2020

The difference between the air outlet of central air conditioning and fresh air system

Nowadays, many families not only choose central air conditioning, but also choose fresh air systems to improve the air quality in their homes. So, what do you know about the difference between central air conditioning and fresh air system outlets?

07/31/2020

What are the failures of the air conditioning refrigeration system (R410A)

When it is assumed that the system is blocked by welding, first check whether the system pressure and current are normal. You can use a pressure gauge to measure the suction pressure.

06/14/2020

New energy efficiency standards for air conditioners are officially implemented

New energy efficiency standards for air conditioners are officially implemented Recently, a major event has occurred in the air-conditioning industry, and the new energy efficiency standard has confirmed the implementation time.

07/28/2020

Analysis of common failure causes of hermetic refrigeration compressors

. How to identify the 3 terminals on the casing of a hermetic compressor?<br></br> The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.

06/14/2020

Super High Pressure Compressor

Super high pressure compressor proven to 700 bar using CO2 Concepts and Enhanced technologies

07/31/2020

Is it normal to see smoke from the outdoor unit during air conditioning heating in winter

In winter, when using air-conditioning for heating, the effect is either reduced or there is no hot air. I always feel that the heating effect is very poor! Many air conditioners are surrounded by snow. Can they be effective

08/18/2020

Causes of vibration of air conditioning fans in computer rooms

There should be a qualified mechanical professional technician (or, hire a contract mechanical professional technician) among the staff in the data center.

09/02/2022

Differences between a Contactor and a Relay

The contactor and the relay are all control devices used in electric circuit. But they cannot replace each other. The followings are the main differences between the two.