NKK Switch UB2-15H1

09/26/2025

How Does an Expansion Valve Work?

The expansion valve is installed at the inlet of the evaporator. Its function is to eject the high-temperature and high-pressure liquid refrigerant from the receiver dryer from the small hole of the expansion valve.

08/06/2022

FANUC Spindle Amplifier Alarm Codes and Solutions (4)

The following is a continuation of the previous article, and introduces FANUC spindle drive alarm codes 74-88. Besides, other alarm codes are also introduced.

08/11/2020

The function and calculation method of air-conditioning ventilation static pressure box

1. What is a static pressure box?<br></br> 　　 Static pressure box, also known as plenum chamber, is a large space box connected to the air outlet. The flow velocity of the air flow in this space decreases to close to zero, the dynamic pressure is converted into static pressure

08/18/2020

Common faults and solutions of central air conditioning

What are the common faults and solutions for central air conditioning? Let’s take a look with the editor of okmarts.com!

08/24/2020

Power saving tips for air conditioners and refrigerators

Seeing that summer is about to enter, the weather is getting hotter and hotter, and the air conditioner and refrigerator are also in handy. When the two "electric tigers" are turned on together, the electricity bill will also increase. Some friends It's too much.

07/30/2020

How to solve the problems encountered in the operation of the 120KW cold capacity air-cooled compressor

The 120KW cold capacity air-cooled compressor mainly has three related systems. Refrigerant circulation system, water circulation system and electrical automatic control system. Six. When the chiller is not used for a long time,

08/17/2020

Analysis of four major technical schemes of cold storage ammonia to fluorine system

According to the characteristics of different primary ammonia refrigeration systems, building structure, insulation characteristics, use requirements (such as in the logistics cold storage, does not affect normal business storage)

08/24/2020

What are the common methods for refrigerant leak detection

Visual leak detection 　　 When oil stains are found somewhere in the system, this may be a leakage point.

07/07/2020

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

09/22/2023

Water-Cooled Chiller vs Air-Cooled Chiller: Which One is Better?

When it comes to cooling systems for large commercial buildings or industrial facilities, two of the most common options are water-cooled chillers and air-cooled chillers. Both types of chillers are designed to remove heat from a building or industrial process, but they operate in different ways and have their own unique advantages and disadvantages.