Nidec Fan M34720-55C

07/17/2020

The operation of central air conditioning system and the harm of scale to the system

As we all know, any water filtration machine we use will produce scales, such as drinking fountains. When scales form in the system during long-term use, it will cause great harm to the system itself. The central air conditioner is no exception.

08/02/2020

Equipment selection for cold storage design and installation temperature and size are critical

The equipment selection of the cold storage design and installation is related to the actual operation of the cold storage after the completion of the cold storage.

09/15/2020

The difference between micro vacuum pump and gas sampling pump

Usually we call small-volume pumps that can generate negative pressure as micro-vacuum pumps, but we must strictly distinguish them when selecting products.

09/11/2020

Comparison of ball bearings and roller bearings

Comparison of ball bearings and roller bearings From the point of view of the contact with the raceway: Ball bearings are in point contact, and the contact surface is ellipsoid; while roller bearings are in line contact, and when force is applied, the contact surface is square.

08/16/2020

The failure of refrigeration system in small cold storage

Small cold storage, including movable cold storage, generally have a capacity of less than 100 tons. The cold storage evaporator adopts a platoon type or a combined type of air cooler, and a

03/17/2021

Several effective tips for servo motor drive repair

1. When the Panasonic digital AC servo system is powered on, the motor vibrates and makes a lot of noise, and then the driver gives an alarm No. 16, what should I do?

07/29/2020

Accurate fluorine addition method for air conditioning maintenance

Accurate fluorine addition method for air conditioning maintenance Adding fluoride is a basic skill in air conditioning maintenance, and it is also a highly technical job. The following are some of the experiences that colleagues have explored in the maintenance practice, and discuss with readers

07/24/2023

An Introduction to Heat Pump Parts (with Heat Pump Parts Diagram)

Heat pumps are an energy-efficient alternative to traditional HVAC systems for heating and cooling your home. They work by transferring heat from one place to another, using a combination of several key components

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

04/09/2025

Common DAIKIN AC Error Code Lists

DAIKIN air conditioner/air conditioning system malfunction codes consist of one letter or number plus one number or letter. The letters include A, C, E, H, F, J, L, P, U, and M, and the numbers include 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. These codes are divided into indoor unit related, outdoor unit related, system related codes and others.