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08/08/2020
Daily maintenance method of precision air conditioner for computer room
With the development of science and technology, the precision air conditioners in the computer room are gradually upgraded, and the cost is getting higher and higher. Therefore, it is more necessary to increase maintenance efforts.
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06/14/2020
Refrigerating oil replacement operation method
Refrigerating oil replacement operation method One. Replacing the freezing oil without internal cleaning: The compressor performs the pumping action, recovers the system refrigerant to the condenser side (note that the minimum suction pressure of the 器2 䀀 ᅵ皥 䖒皦즠Ʋ奌ི 㲈Ʋ 䌁皦 ᮔDž༬皧奖ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب ǜ V / 펔B䌁皦 ᮔDž '鱤džၜ먢䇨珵呈ᠾ뤂ᐱ ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲ ᠾ 랖僧Ӗ 識 �僬㣢ᐲ 臆S㥲ᐲ ᬄğ 識 理艏S杴 識杴 㥲ᐲ
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03/22/2022
How to Replace a Circuit Breaker?
A circuit breaker is a switching device connected to an electrical circuit that interrupts the current flow when it is excessive.
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06/14/2020
Refrigeration compressor installation conditions and precautions
The selection of the installation site is ignored by the staff. Often the compressor will be found at random after it is purchased and used immediately after piping.
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06/14/2020
Screw refrigeration compressor VS piston refrigeration compressor, don't confuse Distinguish from type
Screw refrigeration compressor VS piston refrigeration compressor, don't confuse Distinguish from type Screw refrigeration compressors and piston refrigeration compressors are positive displacement compressors, while screw refrigeration compressors ar 器2 䀀 ᅵ皥 䖒皦즠Ʋ嫜ི 㲈Ʋ 䌁皦 ᮔDž༬皧嫦ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب ǜ V / 펔B䌁皦 ᮔDž '鱤džၜ먢䇨珵呈ᠾ뤂ᐱ ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲ ᠾ 랖僧܆ 識 �僬㣢ᐲ 臆S㥲ᐲ ᬄğ 識 理艏S杴 識杴 㥲ᐲ
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08/11/2020
The temperature status and faults of the unit components of various commercial central air-conditioning systems
When the commercial central air-conditioning system is overhauled, temperature inspection and testing are very important, because the unit components of the entire central air-conditioning system have a normal temperature range, beyond which it is an abnormal state.
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07/23/2020
Analysis of common failure causes of hermetic refrigeration compressors
1. How to identify the 3 terminals on the casing of a hermetic compressor?<br></br> The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.<br></br>
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01/10/2022
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.
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09/02/2022
Differences between a Contactor and a Relay
The contactor and the relay are all control devices used in electric circuit. But they cannot replace each other. The followings are the main differences between the two.
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09/04/2020
The difference between ordinary asynchronous motor and variable frequency motor
1. Ordinary asynchronous motors are designed according to constant frequency and constant voltage, which cannot fully meet the requirements of variable frequency speed regulation