Danfoss Compressor SH780B3ABK

09/08/2020

Several major misunderstandings for air compressor oil! ! !

When the air compressor is working, the surface of the moving parts will produce severe friction. The function of air compressor oil is to form a good oil film between moving parts, separate the contact surfaces, replace dry friction with wet friction, and turn solid friction into liquid friction.

07/06/2023

Heat Pump Compressor Not Turning On: Common Causes and Fixes

Heat pump compressors are integral components of heating and cooling systems, responsible for compressing and circulating refrigerant through the system.

08/06/2020

Root Causes and Prevention Methods of Coil Freezing Cracks of Air Conditioning Unit

Root Causes and Prevention Methods of Coil Freezing Cracks of Air Conditioning Unit<br></br> In general, the heat medium in the heat exchanger of the air conditioning unit is water (surface cooling: 7-12°C; heating 70-90°C or steam heating).

05/06/2025

What is the difference between inverter air conditioner and fixed frequency air conditioner

1. What is inverter air conditioner? Frequency conversion means that the frequency is variable and adjustable. Compared with traditional air conditioners, the generation of frequency conversion air conditioners is due to the rapid development of power el器2䀀
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06/29/2020

Compression ratio of American Copeland compressor

02/27/2021

Working principle of servo motor (how servo motor works)

The rotor inside the servo motor is a permanent magnet. The U / V / W three-phase electricity controlled by the driver forms an electromagnetic field. The rotor rotates under the effect of this magnetic field. At the same time, the encoder of the motor feeds back the signal to the driver. The driver adjusts the rotation angle of the rotor according to the comparison between the feedback value and the target value. The accuracy of servo motor depends on the accuracy of encoder (number of lines).

08/16/2020

What is the difference between a water source heat pump and a water ring heat pump

1. Water source heat pump technology Water source heat pump technology is a low-temperature low-level thermal energy resource formed by using solar energy and geothermal energy absorbed from shallow water sources on the earth's surface

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.

09/01/2025

How to Distinguish Different Types of Fans in Data Centers

Without fans, it is impossible to ensure that equipment components operate at a constant temperature. Long-term continuous high-temperature operation of equipment will accelerate the aging of components and shorten the life cycle of equipment operation.

11/27/2023

CPU Fan Replacement HP Laptop with Figures and Detailed Steps

Recently, the HP notebook for personal use prompts that the fan is broken when it is turned on. I decisively placed an order online and bought a replacement fan.