Danfoss Compressor SH212B9AAJ

07/24/2024

Refrigerator Solenoid Valves: Structure and Working Principle

The refrigerator solenoid valve is mainly used to change the flow direction of the refrigerant to control the cooling temperature of different compartments of the refrigerator (refrigerator compartment, freezer compartment, and variable temperature compartment).

01/23/2024

Single Fan and Dual Fan for Household Central Air Conditioning Outdoor Unit: How to Choose?

Central air conditioning generally includes indoor units and outdoor units. For the selection of outdoor units, there are generally single fan and double fan types to choose from. So which one is better to choose?

06/22/2020

What should I do if the refrigerator does not cool

Refrigerator is an indispensable electrical appliance in our daily family life, and it is deeply loved by pricing due to its good refrigeration and freezing performance. However, after long-term use, some failures will inevitably occur. So what's wrong with the refrigerator? How to solve it? Let's take a look together. <img src="{{media url=&quot;magefan_blog/What_should_I_do_if_the_refrigerator_does_not_cool.jpg&quot;}}" alt="" />

08/13/2020

Problems that need to be paid attention to when installing chillers

1. Anti-leakage of fluorine<br></br> 　　If the joints of the chiller are not tightened or cracked, fluorine leakage will occur. If the chiller leaks fluorine, the user must replenish it frequently,

08/20/2020

What is an air conditioner pressure sensor

The pressure sensor is a device that is installed on the pipeline of the outdoor unit of the air conditioner to perform pressure detection. The pressure detection result is transmitted to the computer board to control other parts of the air conditioner.

04/04/2023

AC Compressor Failure and Case Analysis

The compressor is the energy core of the air-conditioning refrigeration (heat) system. In the refrigeration system, it mainly plays the role of compressing the refrigerant and promoting the continuous circulation of the refrigeration oil.

02/27/2021

The internal structure and characteristics of the micro servo motor

A miniature servo motor includes a small DC motor, a set of variable speed (reduction) gear sets, a feedback adjustable potentiometer and an electronic control board. Among them, the high-speed rotating DC motor provides the original power and drives the variable speed (reduction) gear set to produce a high torque output. The greater the gear ratio of the gear set, the greater the output torque of the servo motor, that is to say, the greater the weight it can bear, the lower the speed of rotation it will be.

08/20/2020

The difference and advantages and disadvantages of air duct machine, water chiller and multi-line

1. Ducting machine-Ducting system 　　 duct type system, as its name implies, uses air as the conveying medium. It uses chillers to centrally produce cold energy, cools/heats the fresh air, mixes it with the return air, and sends it indoors.

07/27/2020

The car air conditioner is running and there is no wind, and the pipe is still frosting. It may be a problem here

Yesterday, some netizens asked such a question: The air volume of the air outlet began to drop after 40 to 50 minutes of driving the car with the air conditioner, and the cooling effect also decreased. And a pipe from the air-conditioning compressor to the dashboard is also frosted. From the picture, this is the frosting of the low pressure pipe of the air conditioner.<br></br>

06/29/2020

Compression ratio of American Copeland compressor