Danfoss Compressor SH161A9AAZ

05/06/2022

10 Matters When Installing Water Solenoid Valve?

Solenoid valve is one of the commonly used valves in automatic control system. It is favored by users because of its low price, simple use, convenience and reliability.

08/24/2020

Central air conditioning In 2020, enter the era of stock

In 2020, no one will be able to make an accurate assessment of international political patterns and economic development trends. In the short term, central air-conditioning is gradually transitioning from an incremental market to a stock market.

08/20/2020

Influencing factors and measures of energy saving in air conditioning and refrigeration systems

The use of electrical equipment has a huge demand for energy, and the refrigeration industry has become an important industry in my country's household appliances.

08/25/2020

What are the irrelevant and unreasonable requirements in air conditioning procurement

As a device commonly used in daily life and work, the purchase demand for air conditioners is strong all year round. Looking through the bidding documents of the government procurement of air-conditioning projects,

09/23/2020

Air compressor classification, working principle and air compressor selection

Air compressor classification, working principle and air compressor selection The air compressor is the main body of the air source device. It is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a pressure generating device for compressed air.

07/20/2020

What are the specific operation methods for the maintenance of cold storage screw compressors?

　 Before the cold storage screw compressor must be overhauled, if possible, unload the slide valve to the "0" position, shut down normally, and cut off the power supply. The pipeline connected to the compressor should be cut off and the refrigerant and lubricating oil in the compressor should be discharged before the compressor can be disassembled.

07/07/2020

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

07/17/2020

Empty and replace the expansion valve after servicing the refrigeration system

Let's introduce the operation process when replacing the expansion valve in the refrigeration system. In the system, when the low pressure of the system is under pressure control, short-circuit the controller before venting the system to prevent the system from jumping during vacuum.

01/07/2025

FANUC Spindle Amplifier Alarm Codes and Solutions (2)

The following is a continuation of the previous article, and introduces FANUC spindle drive alarm codes 24-46.

07/16/2020

Tips for compressors using refrigeration oil

The amount of frozen oil used. The amount of refrigerating oil should be controlled after the installation of the overall refrigeration system. After the trial operation, the oil return position of the refrigerating oil seen from the sight glass of the compressor should be at the center line of the sight glass.