Hitachi Compressor SD097SN-H3BU

08/24/2020

Popular science the advantages of water source heat pump central air-conditioning

Water source heat pump technology can use the low-level thermal energy resources formed by the absorption of solar and geothermal energy from the shallow water sources on the earth's surface

08/29/2020

Compressed air energy storage emerges

In recent years, in addition to the social and economic development itself, the rapid development of negative products, shortage of energy resources and environmental pollution have attracted more and more attention.

05/19/2022

PLC Analog Input

PLC analog inputs usually use voltage signals in the range of 20 volts and current signals in mA. Each PLC manufacturer has I / O modules to process these types of signals

09/08/2020

4 advantages of oil-free screw air compressor

Oil-free screw air compressors are more and more widely used. The lubrication, sealing and cooling of the entire main engine are completed by water. Therefore, oil-free screw air compressors can be described as true oil-free energy-saving air compressors.

08/06/2020

Have fun with the cooling water and condensate water system, start here!

1. Design steps of cooling water system<br></br> 　　 1. Installation of cooling water pump and cooling tower<br></br> 　　Each cooling tower should be equipped with at least one water pump. Generally, spare pumps should be considered for maintenance.

08/20/2020

What is an air conditioner pressure sensor

The pressure sensor is a device that is installed on the pipeline of the outdoor unit of the air conditioner to perform pressure detection. The pressure detection result is transmitted to the computer board to control other parts of the air conditioner.

07/07/2020

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

07/29/2020

Pressure controller use and adjustment

Many pressure controllers are used in the refrigeration system, and the pressure is controlled by the on and off of the contacts. Mainly include high pressure pressure controller, low pressure pressure controller, high and low pressure pressure controller, pressure difference controller and oil pressure protection pressure controller.

07/14/2020

I realized that in winter, the refrigerator should be adjusted correctly, and the power saving and cooling are correct.

I realized that in winter, the refrigerator should be adjusted correctly, and the power saving and cooling are correct. I believe that there should be a refrigerator in the home of the friends, the role of the refrigerator is to freeze and refrigerate the food in the home.

08/18/2020

Selection method of chiller models in different industries

At present, there are more and more chiller manufacturers producing chillers, and there are also many refrigeration equipment that need to be selected in the daily production of many industries,