Copeland Compressor 4ML1-150-AWC-P

03/11/2021

Common faults

The motor of servo driver is unstable, and the speed is fast and slow. The main reasons for this kind of fault are as follows: 1.The servo driver parameters are not adjusted properly, and the regulator does not reach the best working state.

07/06/2022

Magnet Pump Troubleshooting: Noisy and Seizing

Magnet pump has been available for many years. It is an important field in water pump. Today, let's take a look at two problems that are easy to occur: Noisy and Seizing.

03/19/2025

On the operation principle and internal structure of air-conditioning compressor

On the operation principle and internal structure of air-conditioning compressor Regarding air-conditioning compressors, this belongs to the refrigeration system, which is generally used for air-conditioning and refrigerator cold storage, and belongs to the heart of refrigeration equipment. Air-conditioning compressors can be classified according to different principles, usually divided into two types: volume type and speed type. Volumetric air-conditioning compressors are relatively common and one of the most popular compressors.

05/23/2025

How to select the thermal expansion valve？

1. The role and classification of expansion valves<br></br> Expansion valve is an important part of refrigeration system, generally installed between liquid storage cylinder and evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect.

08/18/2020

Specific factors affecting the cooling effect of air conditioning

In the entire air conditioning and refrigeration system cycle process, the compressor plays a role in compressing and transporting refrigerant vapor and causing low pressure in the evaporator and high pressure in the condenser.

11/17/2023

How Does the PWM Achieve Fan Speed Regulation? What Does Each Wire of the CPU Fan Mean?

No matter if it is a desktop computer or a notebook computer, they all have fans. The fan plays the role of heat dissipation.

08/14/2020

Common problems and solutions of liquid refrigerants in refrigeration systems

1. Migration of liquid refrigerant<br></br> 　　 refrigerant migration refers to the accumulation of liquid refrigerant in the compressor crankcase when the compressor is stopped.

04/01/2025

FANUC Common Fault Alarm Analysis

1. The system alarm displays 9056, and the <a href=”url”>FANUC spindle amplifier</a> alarm code displays 56.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

08/05/2020

Why does the refrigeration compressor produce overheat protection What matters should be paid attention to in the use of overload protector

The working principle and classification of the overload protector. The overload protector of the compressor for air conditioning generally adopts a snap-type bimetallic protector, which consists of a heating wire,