Danfoss Compressor SZ147A3YH

06/18/2020

Analysis of the circuit diagram of the two compressors' phase failure protection

Analysis of the circuit diagram of the two compressors' phase failure <br><br> Air compressor phase failure <br><br> circuit In the figure, KP is the electrical contact pressure gauge Ai is the CD4073 AND gate circuit, Az is the ~D4025 NOR gate circuit, and A3 is the CD4071 OR gate circuit. The 7806 three-terminal fixed integrated voltage regulator is used as the control circuit for the DC working power supply. When the AC power fails, the relay KA is released and the motor stops. Circuit diagram of compressor phase failure <br><br><img src="{{media url=&quot;wysiwyg/Analysis_of_the_circuit_diagram_of_the_two_compressors_phase_failure_protection.jpg&quot;}}" alt="" />

07/27/2020

It is so hot in summer, the refrigerator can freeze the water, open the refrigerator door, will the room cool down

In the hot summer days, especially in the dog days, the heat buildup in the house is very serious. As soon as you open the door, you will feel the heat waves. After a long time, you will sweat profusely, like a sauna.

09/08/2020

The type and structure of the intake valve of the screw air compressor

Nowadays, people’s requirements for screw air compressors are getting higher and higher, and their performance will follow. From components to the whole machine, everyone wants to understand its use and how to maintain it. The following introduces the intake valve of screw air compressors. Some basic common sense:

08/17/2020

Precautions for key auxiliary materials for central air conditioning installation

Central air-conditioning is an air conditioner that must be installed in many places, such as companies, shopping malls, supermarkets and other places. With the rapid development of society,

06/29/2020

Compression ratio of American Copeland compressor

08/19/2020

How does industrial chiller work during water treatment

How does the industrial chiller start and run during processing? Let us understand this knowledge together. 1. Open the inlet and outlet gates of the switching well and close the other gates of the industrial chiller according to the dispatching instructions.

08/21/2020

The main difference between air-cooled chillers and water-cooled chillers

First of all, it is necessary to find out which types of chillers are divided into: General manufacturers will produce two types of water-cooled and air-cooled chillers.

06/22/2020

Working principle of steam compressor_steam compressor application

Working principle of steam compressor_steam compressor application Working principle of steam compressor After the steam is filtered by the filter, clean steam then enters the host cavity through the intake valve, and the volume of the cavity changes from large to small to compress the steam. The volume of the cavity is changed by the rotor rotating under the drive of the motor. <img src="{{media url=&quot;Working_principle_of_steam_compressor_steam_compressor_application.jpg&quot;}}" alt="" />

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.

08/17/2020

Temperature has a great influence on refrigeration and air-conditioning systems, don’t you know

The relevant temperature of the components of the refrigeration and air-conditioning system has a normal temperature range, and it is an abnormal state if it exceeds this range.