Copeland Compressor 2DA3-075E-TFE-001

06/14/2020

11 common protection devices for refrigeration compressors

11 common protection devices for refrigeration compressors When the compressor is running, some abnormal conditions may occur, such as: the discharge pressure is too high, the suction pressure is too low

04/22/2025

The difference between chilled water, cooling water and condensed water and the principle of refrigeration

The central air-conditioning host is composed of a compressor, an evaporator, a condenser, and a throttle valve. The compressor provides energy. The condenser reduces the temperature of the refrigerant from the compressor.

09/11/2020

Discussion on the Key Technology of DC Inverter Air Conditioner Control

Inverter air conditioners have become a hot spot for the development of air-conditioning companies because of their energy-saving, comfortable, and high-energy-efficiency advantages and conform to the national policy of "energy saving and emission reduction".

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

06/14/2020

Judgment and common sense of fluoride deficiency in central air conditioning

The amount of fluoride added to large central air conditioners is generally more, and there are more types of refrigerants. The specific amount can be added according to the label on the nameplate. It is necessary to grasp the amount.

05/19/2022

PLC Analog Input

PLC analog inputs usually use voltage signals in the range of 20 volts and current signals in mA. Each PLC manufacturer has I / O modules to process these types of signals

09/22/2020

Discussion on Technology Development of CNG Natural Gas Compressor

1 The rapid development of CNG As of 1999, there were nearly 70 CNG stations in 12 demonstration provinces and cities across the country, and the number of clean vehicles (NGV) was less than 10,000. After four years of rapid development, as of October 2003, there were 16 stations nationwide.

08/08/2020

Types and differences of various refrigerants

Types and differences of various refrigerants 1. R22 is widely used in my country. Some experts believe that if R123 can finally be lifted, then the day when R22 is lifted will not be far away.

06/16/2020

Martin Rossen new global head of public affairs and communication at Danfoss

Martin Rossen will join Danfoss as Senior Vice President, Group Communication & Reputation 1st November, 2020, where he will be responsible for Danfoss’ global public affairs and communication activities. As of 1st November 2020, Martin Rossen takes on t器2䀀
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08/19/2020

How to choose refrigerant for different types of industrial chillers

We all know that the working temperature of medium and high temperature chillers can be controlled between 3°C and 35°C, low temperature chillers can also be controlled between 0°C and -60°C,