FUJITSU Relay JY-12-K

10/28/2025

Causes, treatment and prevention of liquid shock in refrigeration compressor

Causes, treatment and prevention of liquid shock in refrigeration compressor Liquid shock refers to the situation where the refrigerant fails to absorb heat or evaporates sufficiently, and the refrigerant liquid or wet steam is sucked into the compressor器2䀀
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06/18/2020

Analysis of the circuit diagram of the two compressors' phase failure protection

Analysis of the circuit diagram of the two compressors' phase failure <br><br> Air compressor phase failure <br><br> circuit In the figure, KP is the electrical contact pressure gauge Ai is the CD4073 AND gate circuit, Az is the ~D4025 NOR gate circuit, and A3 is the CD4071 OR gate circuit. The 7806 three-terminal fixed integrated voltage regulator is used as the control circuit for the DC working power supply. When the AC power fails, the relay KA is released and the motor stops. Circuit diagram of compressor phase failure <br><br><img src="{{media url=&quot;wysiwyg/Analysis_of_the_circuit_diagram_of_the_two_compressors_phase_failure_protection.jpg&quot;}}" alt="" />

08/11/2020

How to choose a dedicated central air conditioner in a supermarket

Everyone should be familiar with central air-conditioning. It is widely used in our homes and some public places. It can adjust the temperature in the house very well and can bring good ventilation effects.

09/02/2020

164 technical questions and answers about pumps, just read this one!

1. What is a pump? Answer: The pump is a kind of machinery that converts the mechanical energy of the prime mover into pumping liquid energy.<br></br>

08/20/2021

Things You Need to Know about Refrigerator Compressor Hot

A lot of people are worried about whether the compressor overheating is due to refrigerator quality problems.

06/20/2020

Structure of multi-vane compressor_Characteristics of multi-vane compressor

Structure of multi-vane compressor_Characteristics of multi-vane compressor <img src="{{media url=&quot;Structure_of_multi-vane_compressor_Characteristics_of_multi-vane_compressor.jpg&quot;}}" alt="" /> The sliding vane refrigeration compressor is a positive displacement rotary compressor. It can be divided into two types: single slide type and multi slide type. Multi-slider compressors are currently mainly used as low-pressure compressors with two-stage compressors.

08/19/2020

The top ten coal-to-electricity installation misunderstandings this winter may cause air source manufacturers to stumble

With the arrival of the 2020 Detroit heating season, nearly 100,000 air-source heat pump heating systems that have been installed in a dozen suburbs of Detroit before have begun to intensively accept the test of the cold winter.

07/22/2020

The fluorine refrigeration compressor is short of oil, how to add it?

When the compressor is running for a period of time, we can judge whether the compressor is short of oil by observing the oil glass. If the oil level in the oil glass is lower than half of the position, then we need to replenish the oil. This article introduces the oil replenishment method of small and medium-sized compressors.

06/29/2020

What is the cause of compressor pipeline vibration

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
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