Danfoss Compressor SH560A4AAK

02/23/2023

The Advantages and Disadvantages of Butterfly Valve and Its Installation and Maintenance

Butterfly valve is a kind of valve whose closing part (valve clack or butterfly plate) is a disc and rotates around the valve shaft to open and close.

08/02/2020

What should I do if the geothermal exhaust valve leaks

Water leakage from the geothermal exhaust valve is very common. Under normal circumstances, when the heating is first delivered in winter, the geothermal pipe needs to be exhausted so that the exhaust can make the heating of the underfloor heating loop uniform.

06/06/2025

Suggestions on safe and intelligent regulation of air conditioning and ventilation systems during epidemic period

Under the epidemic situation, rework is imminent. We have carefully studied the relevant regulations and guidelines newly implemented in the country during the epidemic period, combined with relevant national regulations,

07/07/2020

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

06/21/2020

[Experience] What happens if the compressor suction pressure is too high and the discharge pressure is too high

[Experience] What happens if the compressor suction pressure is too high and the discharge pressure is too high Compressor suction pressure is too high, discharge pressure is too high 1. Too much refrigerant. Too much refrigerant will cause the suction pressure and discharge pressure to be too high at the same time. This is because when too much refrigerant fills the reservoir, it will occupy a part of the condenser volume, reducing the heat dissipation area and causing the condenser Poor condensation. Discharge excess refrigerant from the low-pressure side.

07/18/2020

Fault analysis and treatment of excessive oil consumption of the refrigeration compressor of piston chiller

Commonly used chillers are divided into piston type, screw type, centrifugal type, and vortex type chiller according to the type of refrigeration compressor used. Their evaporators and condensers generally use shell and tube heat exchangers, the throttling device uses thermal expansion valves, the refrigerant is freon

07/31/2020

How to switch freely between cooling, heating and dehumidification modes

Nowadays, the air conditioner has become a must-have household appliance for every household. In different seasons, for us, we can adjust the temperature with our fingers and realize the switching of different functions.

05/03/2022

Differences Between AC Contactor and DC Contactor?

The working principle of DC contactor is similar to that of AC contactor. They all make the main contact on or off through the actuation of electromagnetic coil.

08/24/2020

Multi-online display FC, FL, FE fault processing method

1. Failure display and phenomenon: Outside machine LED3 double 8 indicator light is on and displays: FC, FL, FE. When the indicator light of the external mainboard and the line controller fail, the following figure will be displayed:

09/09/2020

Comparison of screw type and piston type air compressor

Friends who are often exposed to air compressors should know the basic difference between piston air compressors and screw air compressors. They have obvious differences in structure, moving parts and operating parts, as well as consumption life and performance. , The following brings you some knowledge about the difference between the piston machine and the screw machine.