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07/07/2020

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

06/14/2020

The role of lubricating oil

The role of lubricating oil 1) A dynamic seal is formed between the screw and the compression chamber and the male and female screws to reduce the leakage of refrigerant from the high-pressure side to the low-pressure side during the compression process.

08/16/2020

How to use a water-cooled chiller with a cooling tower for the best effect

A cooling tower is a device that cools water. It is often used in the process of high-speed operation of water-cooled chillers. The cooling tower is a fully functional heat dissipation device to ensure the efficient and stable operation of the water-cooled chiller.

09/07/2020

Is the air compressor oil-free or oil-free

The air compressor is oil-free or oily! ? 　　Good or bad depends on the use occasion and actual working conditions. In some occasions, such as food, medicine, precision instruments and other industries, it is necessary to use an oil-free air compressor. However, oil-free air compressors are much more expensive and more expensive to maintain.

08/08/2020

Selection and calculation of differential pressure regulating valve for central air-conditioning chilled water system

In order to ensure that the flow of the chiller in the central air-conditioning chilled water system is basically constant; the operating conditions of the chilled water pump are stable,

07/15/2022

What is Engine Repair Kits

A repair kit or service kit is a set of items used to repair a device, commonly comprising both tools and spare parts.

09/17/2020

Choose refrigerating oil and start from scratch

Recently, the weather is hot and air-conditioning sales are in the peak season, which has to be reminiscent of "refrigeration". We know that there are many parts that make up refrigeration equipment, and refrigerating oil is an indispensable component.

08/19/2020

Can the fresh air system, air purifier and air conditioner replace each other

1. Fresh air system 　　 Fresh air system is based on the use of special equipment on one side of a closed room to send fresh air to the room, and then discharge from the other side by special equipment to the outside,

02/09/2022

Air Conditioner Compressor Not Starting - Causes & Solutions

As is known to us, the refrigeration compressor is the heart of the air conditioner.

06/29/2020

How to calculate the number of Copeland compressors

How to calculate the number of Copeland compressors Copeland compressors are divided into L, C, 3S, 4S, and 6S series air-cooled compression and condensation units, which can be used as the main components of various refrigeration devices. The refrigerant can obtain various temperatures required for the preservation of fruits and vegetables, quick freezing of food or refrigeration. How to calculate the number of Copeland compressors?