CALPEDA Water Pump C4/A

07/30/2020

Do you know all about the setting of fire damper in HVAC system?

In the HVAC design, there are many types of valves for fire prevention and smoke exhaust, and the valve settings are different for different applications.

06/29/2020

How the compressor works

01/18/2024

Difference between Industrial Axial and Centrifugal Fans

Fan are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, buildings and other fields for ventilation, dust removal and cooling fluid machinery.

07/29/2020

Causes of air-conditioning noise and treatment methods

Definition of noise:<br></br> 　　1. The definition of noise: From the perspective of physiology and psychology, it refers to all the sounds that people don't need. From an industrial point of view, the sounds emitted by products are noise.

05/26/2025

Mitsubishi Heavy Industries-Haier AC Error Codes

When there is a problem with your Mitsubishi Heavy Industries-Haier air conditioning, you need to know the meaning of the fault code displayed on the thermostat and how to troubleshoot it.

06/14/2020

Characteristics of rolling rotor compressor

Characteristics of rolling rotor compressor (1) Rolling rotor rotary compressor is a commonly used compressor for room air conditioners (2) Compared with the reciprocating piston compressor, it has the following characteristics:

03/17/2021

Several common faults in the spindle drive system of CNC machine tools and how to repair it?

When the vertical machining center supporting FANUC6 system is working, the machine tool vibrated severely, and the AC spindle drive displayed AL-04 alarm. During the vertical machining center supporting FANUC6 system is working, the machine tool vibrates severely, and the AC spindle drive displays AL-04 alarm.

07/30/2020

Analysis of common failure causes of hermetic refrigeration compressors

The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.

07/21/2020

How to protect the refrigeration compressor, you must master the following knowledge!

When the compressor is running, some abnormal conditions may occur, such as: exhaust pressure is too high, suction pressure is too low, oil pressure is insufficient, motor is overheated, excess liquid enters the cylinder, etc. In the event of an abnormal situation, the compressor will be damaged if there is no protective measure.

09/06/2020

Basic knowledge of PID regulation and PID

What is PID regulation and the basic knowledge of PID At present, the level of industrial automation has become an important indicator of the modernization level of various industries.