Danfoss Compressor SZ380A4YO

08/17/2020

The heat pump is prone to frost between +4~-4℃. The symptoms and reasons are not beyond these 10 points.

The air source heat pump can use the low-grade heat energy in the ambient air, so it has the dual advantages of energy saving and environmental protection. However, one of the problems is that

08/07/2020

Air source heat pump purchase skills

Air source heat pump products can not only replace coal-burning stoves in rural areas for heating, but also replace urban thermal central heating.

07/07/2020

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

08/05/2020

Why does the refrigeration compressor produce overheat protection What matters should be paid attention to in the use of overload protector

The working principle and classification of the overload protector. The overload protector of the compressor for air conditioning generally adopts a snap-type bimetallic protector, which consists of a heating wire,

08/04/2020

How much should the temperature on the refrigerator be set What can be done to ensure cooling and power saving at the same time

There are two ways to set the temperature of the refrigerator, I will talk about them separately. Generally divided into 5 gears (1~5) or 7 gears (1~7), and some even more.

06/30/2022

What is Check Valve

Check valves are found in almost every industrial application acting as one-way or non-return valves.

08/04/2020

How to accurately choose the power cord of the refrigeration equipment

The installation of refrigeration equipment is a very rigorous work, and its installation situation will affect the work of the machine to a large extent.

10/17/2025

VFD Troubleshooting: 10 Simple Methods to Master

At present and in the future, the maintenance of the electrical control equipment, VFD (Variable Frequency Drive) will become the professional knowledge that all electricians need to master.

08/03/2020

How to deal with the problem of non-circulation of cold water in the chiller

Generally speaking, a small industrial chiller already contains a cold water circulating pump, and a chiller (large) does not contain a cold water circulating pump.

03/06/2023

Types of Cylinder Seals and Factors Affecting Sealing Performance

Cylinder sealing is an important parameter to characterize the technical condition of engine. Cylinder sealing is related to the technical condition of cylinder block, cylinder head, cylinder gasket, piston, piston ring, inlet and exhaust valves and other parts.