Danfoss Compressor SZ120A6PBS

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

08/22/2025

Rosemount 3144P temperature transmitter FF fieldbus manual!

power supply Rosemount temperature transmitter FOUNDAIION fieldbus uses standard fieldbus power supply. The operating voltage of the transmitter is 9 to 32Vdc with a maximum of 11 mA. The rated voltage at the transmitter end is 42.4V dc, Wiring diagram

06/14/2020

Knowledge of maintenance of air energy heat pump

Knowledge of maintenance of air energy heat pump The air energy water heater is composed of an outdoor unit and an insulated water tank. The outdoor unit is called an air energy heat pump unit.

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?

07/04/2020

Talking about several common types of Copeland compressors

Talking about several common types of Copeland compressors Copeland compressors, which consist of casings, motors, cylinders, pistons, control equipment (starters and thermal protectors), and cooling systems, are used very often in air conditioning and cold storage.

08/16/2020

Quick troubleshooting method for chiller (freezing) machine displaying host overload fault

During the use of the equipment, it sometimes encounters such and other failures, among which "host overload" is not very common. We should not immediately think that the compressor is broken as soon as we see the "main unit overload".

08/03/2020

New type of solar equipment can be heated and cooled

A recent study by Chinese and American scientists published in the American "Joule" magazine shows that they have developed a new type of equipment that can use the principle of radiant cooling while heating by solar energy. Installing such equipment on the roof helps to save energy.

09/15/2025

Heat Pump Compressor Troubleshooting

There are various types of compressors used in the heat pump unit and the fully enclosed piston compressor is the most commonly used type. However, when it’s in winter, there most probably are faults of this type of compressor due to frequent heating operations.

01/04/2024

3D Printer: Working Principle, Function of Components and Solutions to Overheating Problem

3D printing technology emerged in the mid-1990s. Its basic working principle is similar to regular printing. The printer contains powdered materials such as metal or plastic, which can be bonded together.

08/20/2020

How to extend the life of commercial central air conditioners

Nowadays, buyers of commercial central air conditioners are increasing day by day. Many people find that the service life of commercial central air conditioners is greatly reduced after purchasing.