Hitachi Compressor ASH205DG-C7AQL

07/23/2020

Analysis of common failure causes of hermetic refrigeration compressors

1. How to identify the 3 terminals on the casing of a hermetic compressor?<br></br> 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.<br></br>

06/29/2020

Compression ratio of American Copeland compressor

07/06/2022

What is a Proportional Valve

A proportional valve provides a change in output pressure or flow in the same ratio as the change in the input, for example if the input doubles then the output will also double.

06/29/2020

Precautions for the use of screw air compressor oil

Precautions for the use of screw air compressor oil Note on the use of screw air compressor oil: It is forbidden to mix air compressor oils of different brands and grades. The old oil must be drained when replacing. It is strictly forbidden to add or filter and reuse.

09/20/2023

Geothermal vs Air Source Heat Pump: Which One is Right for You?

As the world becomes more conscious about the environment, finding ways to reduce carbon emissions has become a top priority. One of the ways to achieve this is by using renewable energy sources to heat our homes.

08/11/2020

Common auxiliary accessories and cooling methods for industrial chillers

Commonly used auxiliary accessories for chillers include water flow switch, pressure controller, pressure difference controller, temperature controller and solenoid valve, as well as a brief introduction of three cooling methods,

07/19/2020

Basic knowledge of refrigeration compressor

After shutting down, stop for at least 3 minutes before starting again to eliminate the pressure difference between the compressor inlet and outlet. Because in the case of a large pressure difference, the starting torque of the motor will increase, causing the current to rise to a certain level, the protector will act and the compressor cannot continue to run.

08/12/2023

Why Heat Pump Runs Constantly in Summer and What to Do?

Heat pumps are an excellent way to keep your home comfortable throughout the year. They are energy-efficient and can provide both heating and cooling to your home.

07/29/2020

Failure analysis Is the air conditioner buzzing about to explode

Summer is the peak season for air-conditioning, and the frequency of air-conditioning in the home has increased significantly. After frequent use, some friends said that the air-conditioning in the home is always buzzing.

02/17/2023

Installation and Maintenance of Gearboxes

When you select gearbox model, four factors should be given comprehensive consideration.