Danfoss Compressor SH590A4AAZ

08/11/2020

Maintenance knowledge and failure methods of small combined cold storage

Maintenance knowledge and failure methods of small combined cold storage:<br></br> 　　 1. The cold storage door is not closed tightly. Please adjust the hinge on the door and the distance between the door lock and the storage body.

08/20/2020

Use and maintenance of central air-conditioning chillers

At present, central air-conditioning refrigerators are widely used, especially in shopping malls and other places with a large number of people. What are the cooling principles, system classification and maintenance methods of central air-conditioning refﰸ2䀀

09/08/2020

What is the main purpose of the inverter Which projects are generally used for

Inverter is a device that converts industrial frequency power (50Hz or 60Hz) into AC power of various frequencies to realize variable-speed operation of the motor. The control circuit completes the control of the main circuit, the rectifier circuit converts alternating current into direct current,

09/14/2020

Technical standards for silent oil-free air compressors

Technical standard for silent oil-free air compressor 1. Subject content and scope of use　　 1. This standard specifies the terminology, technical requirements, test methods and inspection rules of silent oil-free air compressors.　

07/30/2020

What are the cooling methods you know Let's talk about it all!

Principle: In the vapor compression refrigeration cycle system, the compressor sucks in low-temperature and low-pressure refrigerant vapor from the evaporator, is adiabaticly compressed by the compressor to

08/03/2020

Teach you several refrigerant recovery methods

The so-called empirical method is to judge whether the recycling is over based on experience. Refrigerant recovery time varies according to the length of the connecting pipe.

07/07/2020

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

08/21/2020

What is the difference between a central air conditioning system and a clean air conditioning system

The central air conditioning system is mainly composed of refrigerators, cooling water circulation systems, chilled water circulation systems, fan coil systems and cooling towers.

09/06/2020

What should I do if the bearing is broken

How to judge whether the bearing can be used again and the defect that needs to be replaced 　　To judge whether the bearing can be used again, it should be decided according to related factors such as bearing damage level, mechanical performance, importance, operating conditions, inspection period, etc.

08/19/2020

Do you know the most overlooked problems in installing central air conditioners

Many people don't know much about household central air conditioners, so they just buy a product that looks good and make an appointment for an installer to install it. However, there will always be some small problems in the later use,