Danfoss Compressor SH380B9AAO

10/02/2025

Variable-speed technology has become an essential component in the effort to improve HVAC equipment efficiency.

Variable-speed technology has become an essential component in the effort to improve HVAC equipment efficiency. The term “variable-speed” applies to two different components in an air conditioning or heat pump system: the blower motor and the compressor. 器2䀀
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07/26/2020

Precautions for using R410A refrigerant in air conditioner

The types of refrigerating machine oil (lubricating oil) are roughly divided into mineral oil and synthetic oil according to the use of refrigerant. The lubricating oil of R22 refrigerant currently used is basically mineral oil. R410A refrigerant uses synthetic oil.

06/29/2020

How the compressor works

04/22/2022

How to Debug The Input Level Transmitter?

Generally, the input level transmitter will be accurately corrected according to the range marked on the nameplate when leaving the factory.

08/21/2020

Common problems and solutions for ice making machines

1. Common problems and solutions of ice maker 　　 1. The compressor is working but not cooling. 　　 Reason: The refrigerant leaks or the two-way solenoid valve is damaged and it is not closed tightly.

07/30/2020

Analysis of common failure causes of hermetic refrigeration compressors

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.

06/29/2020

Several causes of compressor burning

08/03/2020

Can the central air conditioner be installed after the renovation It's still a reliable teacher and solved it immediately

Although the decoration steps are just those, I always feel that there is no problem as long as the construction is carried out according to the steps, but there are always some annoying things in the middle.

09/10/2020

Knowledge of air compressor oil lubrication

Knowledge of air compressor oil lubrication What is the lubrication principle of air compressor oil? The lubrication principle of air compressor oil is to reduce friction. The so-called friction means that when two relatively moving surfaces undergo relative displacement under the action of external force, there is a relative contact surface called friction surface.

09/09/2020

The working principle of the oil filter

During the working process of the engine, metal wear debris, dust, carbon deposits and colloidal deposits oxidized at high temperature, water, etc. are constantly mixed into the lubricating oil.