Endress Hauser Transmitter PMC71-UBA1PBGHBAZ

08/05/2020

The eight most taboo points of using a freezer

The eight most taboo points when using a freezer, such as the location and environment of the freezer, the temperature of the freezer varies in different seasons, but it is most avoided to tilt.

08/20/2020

Daily maintenance and maintenance methods of ground source heat pumps

At present, many office buildings and single-family villas have installed ground source heat pumps, but you should not think that you will have nothing to worry about after installation.

07/22/2025

Mitsubishi air conditioner E1, E2, E3, E4, E5, E6 and other faults, how to troubleshoot and repair?

Whether there is a fault in the indoor and outdoor units can be known by the access code of the remote control, the content of the green LED

04/23/2025

Top 10 differences between R410A and R22 refrigerants and the difference between R410A and R22 copper pipes

R22 is the chemical name of difluoromethane, is a member of the Freon family, belongs to the hydrochlorofluorocarbon class.

08/21/2020

Treatment method of ammonia leakage accident in ammonia refrigeration compressor

During the operation of the cold storage, the maintenance and maintenance of the ammonia refrigeration system are not in place, which will cause some failures in the ammonia refrigeration system.

08/11/2020

Precautions for assembly of compressor oil scraper ring

If the compressor wants to operate normally, it needs to cooperate and cooperate with each other among its internal parts in order to exert the maximum working ability. As a small part of the compressor, the oil scraper ring has an important working capacity.

07/31/2020

Failure Analysis of Air Conditioner Button Circuit

Where is the button circuit in the inverter air conditioner? The first is the function keys on the display board, and the second is the automatic switch on the main board. The main purpose is to transmit user instructions and achieve the purpose of information interaction.

06/29/2020

Compression ratio of American Copeland compressor

08/09/2020

Improper use of air conditioning heating function will burn out the motor!

With the gradual decrease in temperature, various household heating appliances have come in handy. However, with the increase in frequency of use, the phenomenon of air conditioning not heating has begun to occur.

09/09/2020

Characteristics of Market Operation of Contract Energy Management

EMC's energy system transformation uses contract energy management mode to serve customers, which overcomes the current energy-saving work faced by my country, such as: lack of corporate energy-saving investment awareness, insufficient energy-saving investment funds, low-efficiency energy-saving projects "headache" and system efficiency.