Danfoss Compressor SM147A4RQ

08/06/2020

Root Causes and Prevention Methods of Coil Freezing Cracks of Air Conditioning Unit

Root Causes and Prevention Methods of Coil Freezing Cracks of Air Conditioning Unit<br></br> In general, the heat medium in the heat exchanger of the air conditioning unit is water (surface cooling: 7-12°C; heating 70-90°C or steam heating).

08/19/2020

How to improve the efficiency of closed cooling tower

No matter how precise the equipment, no matter how tightly formed the structure, and no matter how good the quality of the product, without a correct and good maintenance and maintenance,

07/18/2020

Process and cause of liquid shock in piston refrigeration compressor

Piston refrigeration compressor liquid hammer process and reasons for liquid hammer 1. Introduction The phenomenon that liquid refrigerant and/or lubricating oil is sucked into the compressor cylinder with the gas and damaged the suction valve plate

09/11/2020

The air-conditioning industry "sell inventory" model is outdated

The implementation of the new energy efficiency standards for air conditioners is imminent, but the market is showing two different phenomena: most companies have launched an unprecedented price war to hit the peak season market with low prices;

02/15/2024

My Furnace is Blowing Cold Air: 8 Reasons & Ways to Fix

During the cold months, a furnace is your best friend, providing the warmth needed to keep your home comfortable. However, discovering that your furnace is blowing cold air can be disconcerting.

08/24/2020

Reason analysis of refrigeration compressor can not start or stop soon after start

1) First check the main circuit. Whether the power supply has power, whether the voltage is normal, whether the fuse has been blown due to starting overload, whether the air switch has tripped, whether the switch contacts are good, and whether the power supply is missing phase. Observe the voltmeter and ammeter when starting. When the small-scale refrigeration and air-conditioning equipment does not have an ammeter or electric meter, a multimeter or electric pen can be used to check the power supply. When the power supply voltage is too low, the compressor will not start.

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.

09/21/2020

Common physical and chemical properties of lubricants

1 Overview<br></br> Kaifeng Air Separation Group Co., Ltd. has been designing and manufacturing centrifugal compressors for more than 30 years since it started manufacturing centrifugal compressors in 1969.

07/07/2020

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

08/09/2020

Testing methods and maintenance skills of air-conditioning computer boards

The microcomputer control system of the household air conditioner is commonly known as the computer board. It is the nerve center of the air conditioner. When a failure occurs, the entire air conditioner will be in a paralyzed state