Danfoss Compressor SM148W9RQ

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

09/08/2020

The life of air compressor bearings and the causes of damage

If the air compressor loses one bearing or does not pay attention to the correct use of the bearing, the air compressor will not be able to operate normally, and it will greatly shorten the service life of the bearing, which will bring us unnecessary losses.

09/16/2020

Why can't I repair the cold welding machine Easy to fall off

Question: Why can't the patching machine be fixed? Easy to fall off? Answer: The main reasons for the failure to fix are: 1. The surface of the mold is not cleaned, and there are impurities such as oil, dirt, and oxides between the supplement and the mold.

06/14/2020

Method and procedure of replacing refrigeration compressor

1. Cut off the power supply: before replacing the compressor, be sure to cut off the power supply of the unit, otherwise there will be a risk of electric shock. When removing the power supply of the compressor, the identification of each wire and the corr器2䀀
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08/19/2020

What kind of preheating work can avoid the failure of screw chiller

The following is a small knowledge point to ensure the normal, safe and stable operation of the screw chiller. If you want to be a qualified chiller operator, you must continue to learn and absorb a more comprehensive working principle of the chiller and its components, and the chiller

07/18/2020

reasons why the constant temperature and humidity test chamber does not cool

1. Introduction The phenomenon that liquid refrigerant and/or lubricating oil damage the suction valve plate when the gas is sucked into the cylinder of the compressor, and it is produced when the piston is compressed when the piston is close to the top dead center and is not quickly discharged during the exhaust process after entering the cylinder.

07/25/2022

Installation Knowledge of Water Pumps

A water pump is an essential tool to pump out water. It controls the speed of the water and is incredibly useful in conserving water.

06/14/2020

The weather turns hot Avoid the risk of epidemic spread due to the use of air conditioning

The weather turns hot: Avoid the risk of epidemic spread due to the use of air conditioning According to the press conference of the 108th New Coronary Pneumonia Epidemic Prevention and Control in Beijing on May 18, 2020, 33 patients with concentrated feﰸ2䀀
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03/15/2021

ALPHA Alpha Servo Drive Repair

Common faults of Alpha servo drives include: power-on without display, with display without output, overcurrent, overvoltage, undervoltage, overheating, overload, overspeed, phase loss, jitter, encoder abnormality, module damage, ground fault, parameters Errors etc.

06/14/2020

HVAC knowledge

1. The expansion water tank is used in the heating system to store the amount of expansion water after the system is heated. It serves as an exhaust gas in the natural circulation for the lower return system. In addition, it can also function as a constanﰸ2䀀
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