Omron PLC CP2E-S40DT1-D

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?

03/01/2021

The main difference between brushless DC motor and DC servo motor

Different definitions: (1) Brushless DC motor is a typical mechatronics product, which is composed of motor body and driver. Brushless motor refers to the motor without brush and commutator (or collector ring), also known as commutator less motor. As early as the 19th century, when the motor was born, the practical motor was the brushless form, that is, the AC squirrel cage asynchronous motor, which has been widely used. However, the asynchronous motor has many insurmountable defects, so that the development of motor technology is slow. The transistor was born in the middle of last century, so the brushless DC motor using transistor commutation circuit instead of brush and commutator came into being. This new type of brushless motor is called electronic commutation DC motor, which overcomes the defects of the first generation of brushless motor.

10/28/2021

How Much is a Central Air Conditioner - Prices of Different Types of Central Air Conditioners

A quote of a central air conditioner consists of the following prices: equipment (outdoor unit & indoor unit) + materials + installation cost + maintenance cost.

07/27/2020

The use and maintenance operation of screw unit

Parallel unit: generally composed of the same type of compressor, but also can be composed of different types of compressors. It can be composed of the same type of compressor, or it can be composed of different types of compressors (such as piston machine + screw machine). As shown below:

06/29/2020

Compression ratio of American Copeland compressor

04/24/2022

How to Install Float Level Meter?

Float level meter is a continuous liquid level measuring instrument with simple installation and reliable operation.

06/14/2020

How to repair the air conditioner compressor failure

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05/05/2025

What are the Signs of a Bad Refrigerator Compressor?

The compressor is the soul of the whole refrigerator. If the compressor of the refrigerator is faulty, it will lead to the abnormal operation of the refrigerator and affect the cooling effect.

09/14/2020

Intake valve cannot open fault

Quanzhou failure analysis In Quanzhou in the past two days, I was debugging an air compressor. I encountered such a problem. The unit was operating normally for the first time. However, after shutting down and turning on, the unit was abnormal and could not pump air. At present, it can be guaranteed that the original electrical appliances are normal.

08/21/2020

Failure Analysis of Air Conditioner Button Circuit

Where is the button circuit in the inverter air conditioner? The first is the function keys on the display panel, and the second is the automatic switch on the main board. The main purpose is to transmit user instructions and achieve the purpose of information interaction.