Honeywell Bar Code Scanner 1990ISR

10/27/2025

Troubleshooting a Heat Pump Fan Not Spinning (Outdoor Fan): Causes and Solutions

A heat pump is a reliable and energy-efficient HVAC system that provides both heating and cooling for your home. However, like any mechanical system, heat pumps can encounter issues from time to time.

06/29/2020

Compression ratio of American Copeland compressor

12/23/2022

What is an Erbium Doped Fiber Amplifier?

The erbium optical fiber amplifier (EDFA) is an optical amplifier made of optical fiber doped with erbium.

08/20/2020

Three key points of cold storage planning and construction

With the gradual development of the cold chain refrigeration industry and the improvement of economic living standards, the planning and construction of cold storage has become a top priority for the development of the current cold chain industry.

06/14/2020

Working principle of rolling rotor compressor

Working principle of rolling rotor compressor

09/11/2020

Bearing and shaft fit tolerance standard

Bearing and shaft fit tolerance standard ①When the bearing inner diameter tolerance zone and the shaft tolerance zone form a fit, the tolerance code originally belonging to the transition fit in the general basic hole system will become an over-win fit, such as k5, k6, m5, m6, n6, etc., but the over-win amount is not Large; when the bearing inner diameter tolerance is matched with h5, h6, g5, g6, etc., it is not a clearance but an over-win fit.

02/19/2025

Refrigerated Truck: Everything You Need to Know

Refrigerated trucks, also known as reefer trucks, are a critical component of the transportation industry. They are specially designed vehicles equipped with temperature-controlled systems that enable the safe and efficient transport of perishable goods.

08/11/2020

What is the cause of the sudden cold and hot condenser

Analysis of the reasons for the sudden cold and hot condenser:<br></br> 　　 1. There is a partial blockage in the capillary.<br></br> 　　2. There is partial blockage in the filter dryer

09/14/2020

What are the reasons for the high temperature of the air compressor

The air compressor is a transmission machine. If the equipment running at high speed is not properly lubricated or cooled, it will inevitably produce high temperature. Excessive temperature will cause changes in the physical coefficient values ​​of the rotor and bearing materials, and in severe cases, the entire main engine will bite.

07/30/2020

Precautions for cold storage installation

Library refers to the use of artificial means to create an environment different from outdoor temperature or humidity. Pay attention to the following points when installing cold storage: