Danfoss Compressor SM124W9CBO

06/25/2020

Comparison of characteristics of Hitachi inverter scroll compressors for household and commercial and vehicle air conditioning

Comparison of characteristics of Hitachi inverter scroll compressors for household and commercial and vehicle air conditioning Due to the different applications, Hitachi inverter scroll compressors have different characteristics.

06/14/2020

Explain "Overcooling" and "Overheating"-The Basics

Explain "Overcooling" and "Overheating"-The Basics Misunderstanding: subcooling ≠ condenser inlet temperature-condenser outlet temperature The so-called "undercooling": That is, the saturated liquid after condensation is re-cooled through a certain器2䀀
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12/24/2022

How do Erbium Doped Fiber Amplifiers Work?

Erbium doped fiber amplifiers are the most widely used optical amplifiers in optical fiber communications.

06/14/2020

The main features of screw compressors What are the advantages of screw air compressors

Power balance is good. The screw compressor has no unbalanced inertial force, the machine can work smoothly at high speed, and it can be operated without foundation. It is particularly suitable for use as a mobile compressor, with small size, light weightﰸ2䀀
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07/07/2020

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

09/06/2022

What is the Difference between Synchronous and Induction Motor

Electric motors are roughly divided into three types, synchronous motor, asynchronous motor

08/19/2020

The impact of excessive or small pump flow on the chiller

The chiller may have various types of failures. Why does the water pump fail with too much or too little flow?<br></br> 　　 In fact, whether the flow of the water pump is too large or too small, it will have a certain impact on the operation of the chiller, so it is not a good thing that the flow is too large or too small.

08/13/2020

Reasons for vibration of inlet and outlet pipes of reciprocating compressor

During the air load test of the carbon dioxide compressor, the pipeline between the third-stage outlet buffer and the third-stage cooler, the pipeline between the fourth-stage outlet buffer and the fourth-stage cooler,

06/14/2020

Judgment and common sense of fluoride deficiency in central air conditioning

The amount of fluoride added to large central air conditioners is generally more, and there are more types of refrigerants. The specific amount can be added according to the label on the nameplate. It is necessary to grasp the amount.

09/05/2020

Not as simple as you think, there are three states of mechanical lubrication

Lubrication is a frequently encountered problem in equipment maintenance, but what exactly is lubrication? Speaking of lubrication, the scene in our minds may just apply oil or grease to the mechanical friction surface to reduce friction.