Toho Temperature Controller TRV1-M-030

07/07/2020

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

08/02/2020

Basic principles of data center cooling and energy saving solutions

Basic principles of data center cooling and energy saving solutions<br></br> Each data center has its own characteristics, so there is no technical solution that can be applied to any data center.

01/16/2021

Refrigerator compressor maintenance case

Refrigerator compressor maintenance case Case description: The repair is a Refrigerator 220 direct-cooled refrigerator, which starts after the contact is stuck, causing the refrigerator compressor to start normally and sometimes abnormally.

08/16/2020

Solutions to the problem of abnormal pressure in industrial chillers

In the actual use of industrial chillers, it is inevitable that some failures will occur. Enterprises need to solve them in time when they face the occurrence of failures. In order to avoid the occurrence of failures, they also need to check the equipment regularly.

06/06/2025

Suggestions on safe and intelligent regulation of air conditioning and ventilation systems during epidemic period

Under the epidemic situation, rework is imminent. We have carefully studied the relevant regulations and guidelines newly implemented in the country during the epidemic period, combined with relevant national regulations,

07/30/2020

Reason analysis of refrigeration compressor can not start or stop soon after start

First check the main circuit. Whether the power supply has electricity, whether the voltage is normal, whether the fuse has been blown due to starting overload, whether the air switch has tripped,

07/24/2023

An Introduction to Heat Pump Parts (with Heat Pump Parts Diagram)

Heat pumps are an energy-efficient alternative to traditional HVAC systems for heating and cooling your home. They work by transferring heat from one place to another, using a combination of several key components

01/19/2023

The Differences between Solenoid Valves and Motorized Valves

The solenoid valve is an industrial equipment controlled by electromagnetic, which is the basic component of automation used to control fluid.

05/21/2025

Have you figured out the "enthalpy" and "entropy" of the refrigeration system?

1. Enthalpy<br></br> It is a kind of energy, used to indicate the thermal state parameter of the state of the refrigerant, it represents the size of the total energy of the refrigerant; namely:

08/02/2020

The air conditioner compressor does not start, it may be its problem-capacitor

The main functions of capacitors (capacitors for short) in the electronic circuit of air conditioners are filtering, delay, boosting, energy storage, bypass, decoupling, etc., and can also be used to start the compressor.