Bitzer Compressor 4TCS-12.2

06/08/2023

What Does a Bad AC Compressor Sound Like?

Your air conditioning (AC) system is designed to keep you cool and comfortable during the hot summer months.

08/14/2020

Air conditioner repair-come here

I learned from a senior air conditioner repairer that we can judge the general failure of the air conditioner by observing the characteristics and operation of the air conditioner.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

05/17/2023

How to Add Oil to AC Compressor

When the all-in-one air conditioner leaves the factory, there is a sufficient amount of AC compressor oil (commonly known as refrigeration oil, refrigerant oil, AC lubricants, AC oil) inside the machine.

08/24/2020

Causes of uneven liquid distribution in refrigeration systems and tragic cases!

If the distribution head is not evenly distributed, it will cause too much refrigerant in some of the branches, which will cause the evaporator to frost.

06/26/2024

10 Hydraulic Parts Manufacturers from China

In the production of hydraulic parts, some local Chinese companies are also booming. The following introduces some hydraulic parts companies from China.

06/20/2020

What are the causes of air conditioning trip

What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. 　　Here are two formulas involved: 　　①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. 　　② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. 　　 So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. 　　 Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 　　 2. Leakage 　　During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. 　　Why does the electric leakage cause the MCB to trip? There are two situations. 　　 ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. 　　②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. 　　How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. 　　 ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. 　　②Measure whether the output current exceeds the standard. 　　 So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.

09/09/2020

Features of variable frequency screw air compressor

Motor: 　　Special low-speed compressor motor, SKF bearings, insulation class F, protection class IP54, to ensure trouble-free operation. The efficiency is 3-5% higher than similar products.

02/06/2025

Refrigerated Display Case: Everything You Need to Know

Refrigerated display cases are essential equipment in various industries, most notably in the food and beverage sector. They provide a visually appealing and hygienic means to showcase perishable items, such as chilled drinks, fresh produce, dairy products, and delicatessen.

06/21/2020

Working principle of reciprocating piston compressor_Characteristics of reciprocating piston compressor

Working principle of reciprocating piston compressor_Characteristics of reciprocating piston compressor <img src="{{media url=&quot;wysiwyg/Working_principle_of_reciprocating_piston_compressor.jpg&quot;}}" alt="" /> Reciprocating piston compressor 　　Positive compressor that changes the internal volume of the compression chamber by one or several reciprocating pistons.