Danfoss Compressor SH212A3AAL

09/07/2020

The contents of air compressor major, medium and minor repair

What are the specific contents of air compressor major, medium and minor repairs? 　　What is included in the overhaul of the compressor? 　　Answer: Compressor overhaul is generally carried out once after 12,000-26,000 hours of operation.

08/16/2020

What is the new refrigerant of R410A and what are its advantages in air conditioning applications

Recently, many users are familiar with the term inverter air conditioner, but do they feel strange to another term—new refrigerant? In fact, new refrigerant is just a kind of refrigerant that air conditioners must have when running.

06/29/2020

How the compressor works

03/02/2021

Related technical terms

1.Positioning or residual torque: when there is no current passing through the winding, the torque required to make the output shaft of the motor rotate. 2.Driver: an electrical control device used to run the stepping motor. This includes power supply, logic programmer, switching element and a variable frequency pulse source which determines the step rate. 3.Dynamic torque: the torque produced by the motor at a certain step rate. The dynamic torque can be expressed by PULL IN torque or PULL OUT torque.

08/14/2020

Ask, watch, listen, touch, test, etc. to know the refrigerator failure

Refrigerator failure inspection methods can generally be divided into asking, watching, listening, touching and testing. Through inspection, comprehensive analysis and judgment, gradually narrow the scope of the fault and find the point of failure.

12/14/2023

Comprehensive Guide to 32 Various Refrigerants (Summary of Characteristics＆ Uses of Commonly Used Refrigerants)

0HFC Series Refrigerants: R134a, R410A, R407C, R417A, R404A, R507, R23, R508A, R508B, R152a

02/16/2024

Why is My Electric Furnace Blowing Cold Air? 11 Reasons＆Ways to Fix

An electric furnace is a reliable and efficient way to keep your home warm during the colder months. However, encountering the issue of your electric furnace blowing cold air can be both frustrating and uncomfortable.

09/09/2020

The composition of air compressor oil

Air compressor coolant, referred to as air compressor oil in the industry, is indispensable for air compressor equipment. Air compressor oil plays a role in lubricating, protecting, reducing friction, sealing, rust prevention, and corrosion during the operation of the air compressor. There are two basic components of compressor oil.

07/16/2020

How to see if the refrigerant leaks in the high and low temperature test chamber

How to check whether the refrigerant leaks in the high and low temperature test box; the standard high and low temperature test box and the constant temperature and humidity test box are all selected by the air-cooled compressor, and the working principle is the same as that of the air conditioning refrigeration

09/10/2020

What factors affect the displacement of centrifugal compressors

1) The air filter is blocked or the resistance increases, causing the suction pressure of the compressor to decrease. When the outlet pressure is constant, the compressor pressure ratio is increased. According to the performance curve of the compressor, when the pressure ratio increases, the displacement will decrease;