Siemens Contactor 3RT2018-4AR61

06/29/2020

Several causes of compressor burning

07/28/2020

Installation arrangement and heat preservation method of branch pipe

The branch pipe is also the central air-conditioning branch pipe, commonly known as the splitter (diverter). As the name implies, it is a pipe with one input but multiple outputs.

03/13/2021

Working mode of servo driver

The working modes of servo driver are: open loop mode, voltage mode, current mode (torque mode), IR compensation mode, Hall speed mode, encoder speed mode, tachometer mode, and analog position loop mode (ANP mode). (not all of the above modes exist in all models of drives)

06/14/2020

Internal balance type thermal expansion valve

Internal balance type thermal expansion valve The internal balance type thermal expansion valve is composed of valve body, push rod, valve seat, valve needle, spring, adjusting rod, temperature sensor, connecting pipe, sensing diaphragm and other compone器

05/10/2023

What is a scroll compressor? Everything You Need to Know

A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. So there are scroll air compressors and scroll refrigeration compressor (refrigeration scroll compressor).

07/31/2020

How to properly use central air conditioning during the epidemic Just read this one

At the moment of the epidemic, is there a risk of cross-infection in central air conditioning? How do units reduce the risk of using central air-conditioning? Xu Wei: The prevention and control of the new crown pneumonia epidemic is currently the most important work. The correct operation of the air conditioning and ventilation system during the epidemic period of infectious diseases can effectively reduce the chance of cross infection. Due to the diverse types of buildings and the wide variety of central air conditioners,

07/18/2022

How to Repair Gear Pump

In the previous article, we introduced a lot about the gear pump, so how to install the gear pump? Let's talk about it today.

09/06/2020

What are the requirements of modern industry for oil-free air compressors

After the air is mechanically compressed, it becomes compressed air. The equipment used to produce compressed air is usually called an air compressor. Compressed air is an indispensable pneumatic energy source in people's production and life.

05/13/2025

How to Reset Your Air Conditioner: a Step-by-Step Guide

Air conditioners are essential for keeping your home comfortable and cool during the hot summer months. However, if your air conditioner is not functioning properly, it can be frustrating and uncomfortable.

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="" />