Danfoss Compressor SM148W7XI

07/07/2020

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

07/07/2020

How much do you know about the diameter of the refrigeration system and the return of the upstream pipe

How much do you know about the diameter of the refrigeration system and the return of the upstream pipe When the refrigeration equipment is under low load, if it is found that the oil return cannot be normal, it can be calculated according to the minimum return oil flow rate.

08/24/2022

Functions of the Electric Actuator

An electric actuator is a drive device that provides linear or rotary motion. It uses a certain driving energy to work under the action of a certain control signal.

08/06/2020

Application and troubleshooting of fan coil and electric valve

As a terminal device of the central air conditioning system, the fan coil unit is widely used in residences, offices, hotels, hospitals and other places because of its compact structure, flexible layout, and easy independent control.

08/05/2020

Attention points of refrigeration compressor overload protector during use

We have tried our best to introduce a lot of professional refrigeration knowledge to you in the nearly one year. In this article, we will focus on introducing the precautions during the use of the refrigeration compressor overload protector.

08/29/2020

Six reasons and solutions for oily exhaust of screw air compressors

Failure factors of screw engine exhaust with oil 　　 Among the failures of screw compressors, the faults with oil in the exhaust are the most common. The main factors that cause the faults with oil in the exhaust are:

09/08/2020

What is the difference between an air pump and an air compressor

Many people think that an air compressor is actually an air pump. Generally speaking, the basic principle is still the same, but there are differences in the actual structure. According to relevant data, the intake and exhaust of the air compressor have valves.

06/14/2020

The reasons for the high temperature of the compressor discharge are

The reasons for the high temperature of the compressor discharge are (1) The clearance in the compressor cylinder is too large; (2) The suction and exhaust valves and piston ring of the compressor are damaged; (3) The compressor safety bypass valve器2䀀
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07/23/2020

Judgment and repair method of refrigeration compressor jam

First use the AC current gear of the multimeter, clamp the N-terminal lead of the outdoor unit with the clamp head, measure the outdoor unit current, when the compressor is powered on, the measured current is about 65A, which is much larger than the starting current, indicating that the compressor may be stuck Can not start.<br></br>

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.