Eaton Contactor C80JD413N33

01/06/2021

Advanced frequency conversion technology of Mitsubishi Electric central air conditioner

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08/24/2020

HVAC knowledge

1. The expansion water tank is used in the heating system to store the expansion water after the system is heated, and plays the role of exhaust in the natural circulation up-and-down system.

07/15/2020

How to avoid overheat protection of scroll Copeland compressor

Friends who have used Copeland compressors know that Copeland compressors are relatively solid to use and are not so easily damaged. This is because Copeland compressors have several built-in protection programs. Overheat protection is one of them. Today we will talk about the internal temperature protector of the scroll compressor.

09/05/2024

Types of Air Conditioning Systems and Introduction to Their 18 Components (Part 1)

Air cooling: The condenser uses forced air convection for heat exchange, and home air conditioning units are basically of this type. Air-cooled air conditioning units are divided into two types: cooling only type and heat pump type.

06/29/2020

What is the cause of compressor pipeline vibration

09/06/2020

Design steps of two-wire AC current transmitter

Known high-current current transformers convert different currents into 0~5A alternating current for on-site display. For long-distance transmission, the current must be converted into a standard DC current signal of 4-20mA before transmission.

05/20/2025

6 Ways to Quiet Your Noisy Refrigerator Compressor

A noisy refrigerator compressor can be a source of irritation for homeowners, especially if the appliance is located in a common area of the home.

08/19/2020

Troubleshooting of low valve temperature of screw chiller

The outlet temperature of the expansion valve of the screw chiller reflects the evaporation temperature, which is a factor that affects the heat exchange. Generally, the difference between it and the outlet temperature of the refrigerant water is 5~6℃.

09/01/2020

Is energy consumption high in the paper industry Try to change the oil to the air compressor

The paper industry is closely related to the national economy and social development, and it is also a large traditional energy consumption and waste discharger. How to significantly reduce the

06/29/2020

Introduction of measures for compressor pressure protection

Introduction of measures for compressor pressure protection Measures for compressor pressure protection include the following: 1. Control of suction and exhaust pressure When the compressor is running, due to the system or the compressor itself, the discharge pressure may be too high or the suction pressure may be too low. For this reason, the suction and discharge pressures need to be controlled.