Danfoss Compressor SM112A4VX

08/20/2020

Air-conditioning installation also charges aerial work fees. Have you paid for it

event: Citizen Ms. Liu bought an air conditioner of a certain brand online, and someone came to install it the next day after signing for it, but was asked for a "high-altitude fee" of 50 yuan. Ms. Liu felt very uncomfortable because "the fee was not mentioned at the beginning" .

05/12/2022

6 Advantages of PLC?

Because PLC mostly adopts single-chip microcomputer, it has high integration. And it has corresponding protection circuit and self diagnosis function, which improves the reliability of the system.

08/21/2020

Trouble phenomenon the air conditioner is not cooling, the outdoor unit starts and stops frequently

When the air conditioner is frequently used in summer, many friends will encounter this problem, that is, the outdoor unit of the air conditioner frequently starts and stops, but the indoor unit is not cooled.

08/08/2020

7 advantages of screw refrigeration compressors

7 advantages of screw refrigeration compressors As a kind of rotary refrigeration compressor, screw refrigeration compressor has the characteristics of both piston type and power type (speed type).

08/16/2020

Experts analyze the multi-line central air conditioner for you

How to choose household central air conditioner? Is it okay to multi-line central air conditioning? 　　 In fact, multi-line, commonly known as fluorine machine, currently uses R410A environmentally friendly refrigerant as the main medium to transfer cold and heat energy.

07/07/2020

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

07/11/2025

Speed-Torque Curve of Stepper Motors and FAQs

This is the torque the motor will produce when the motor is stationary and rated current is applied to the windings.

02/21/2023

Working Principle of Butterfly Valve and Emergence of New Butterfly Valve

Butterfly valve is a kind of valve that opens, closes, and adjust medium flow by using disc type hoist to turn back and forth about 90 °.

09/07/2020

Analysis of common failures of motors and their solutions

As an important power provider that is indispensable in people's production and life, electric motors will generate serious heat during use, but many times do not know how to solve them.

07/20/2022

Structure and Working Principle of Diaphragm Pump

Diaphragm pump is a novel mechanical transportation equipment, which can absorb all kinds of corrosive liquids, liquids with particles, and liquids with high viscosity, volatile, flammable and highly toxic.