Omron Sensor E2E-X7D1-M1G-Z

08/12/2020

Precautions when handling industrial chiller refrigerant

1. Before starting the refrigeration compressor of the chiller to pump the refrigerant, short-circuit the contacts of the pressure relay and the oil pressure difference relay on the refrigeration compressor control circuit.

09/06/2020

Design steps of two-wire AC current transmitter

Known high-current current transformers convert different currents into 0~5A alternating current for on-site display. For long-distance transmission, the current must be converted into a standard DC current signal of 4-20mA before transmission.

02/28/2023

The Installation and Maintenance of Air Cylinder

Since the piston in the cylinder barrel makes a linear reciprocating motion, the installation form of the cylinder should be determined in accordance with the direction of the load movement.

09/10/2020

Working principle of scroll compressor

Features of scroll refrigeration compressor 1. The pressure difference between two adjacent chambers is small, and the leakage of gas is small.

07/07/2020

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

09/07/2020

Comprehensive classification knowledge of air compressors

Classification of air compressors Air compressors are divided into: 　　1, speed type; 　　2, volumetric type; volumetric type is divided into rotary and reciprocating;

09/23/2022

Structural Characteristics of Gear Pump and Its Working Principle

Gear pump is a kind of hydraulic pump widely used in hydraulic systems. It is generally made into a fixed displacement pump.

09/10/2020

Existing problems in the promotion and application of water source heat pumps in my country

As a new type of cooling and heating method, water source heat pump should be quite mature and no problem from a technical point of view, especially from the point of view of heat pump units. However, considering China's national conditions and the promotion and application of water source heat pump cooling and heating as a whole system, there are still some problems:

07/15/2020

ZP51K5E-TF574.3 hp 60Hz (R410A) air conditioner Emerson Copeland compressor

What the editor will introduce today is the Emerson Copeland compressor ZP51K5E-TF5/7, which is suitable for R410A refrigerant at 60Hz three-phase electric air conditioning. The power given in the manual of Emerson Copeland Scroll Air Conditioning Compressor is 4.3 hp. For other technical parameters, please download the product manual on our website

07/22/2020

Method for identifying failure of hermetic refrigeration compressor

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.