EAO Switch EUS-704.01-5393

09/15/2020

Supply Ingersoll Rand Air Compressor

Okmarts.com Air Compressor Sales Center specializes in providing you with long-life, low-noise and energy-saving screw air compressors of various types, including mine type, explosion-proof type, oil-free type, mobile type, process type, piston type, high, medium and low pressure Type, etc.,

08/21/2020

Selection method of refrigeration host

The chillers used in the ice storage system need to adapt to the air conditioning and ice storage conditions, so they are often called dual-condition chillers. The available types are piston chillers,

07/22/2020

The reasons for the damage of the car air-conditioning compressor, we must be alert to these four points!

The reasons for the damage of the car air-conditioning compressor, we must be alert to these four points!<br></br> <br></br> After the Ching Ming Festival, summer is about to usher in, how is the cooling effect of your car’s air conditioning? What is wrong?

01/14/2025

Refrigerator PTC Relay Wiring Method

The PTC (positive temperature coefficient) relay is directly connected in series with the secondary winding (start winding).

07/27/2020

The 210,000-kilometer Mercedes-Benz repaired the air conditioner, and the compressor and condenser were replaced. Owner: Looks good!

A few days ago, a Mercedes-Benz E200L came to the factory for inspection. The owner described only one problem, that is: the air conditioning outlet does not blow cool breeze.

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.

08/14/2020

How to select the cooling fan in the floor heating and air conditioning system

For many dealers in the north, the heating end may be familiar, but they are not very confident in the cooling end. In our WeChat group, dealers often consult related questions.

09/10/2020

Application of pressure sensor in air compressor safety management system

In the safety management system, the pressure sensor realizes the side airbag control. Air compressor safety management system is also a field where sensors are widely used. There are two solutions for controlling the side airbag of the air compressor:

09/11/2020

Radial bearing

Radial bearing: Rolling bearing mainly used for bearing radial load, its nominal contact angle ranges from 0 degrees to 45 degrees. According to the different nominal contact angles,

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth