EMERSON Power Supply M821D

07/31/2020

Multi-online display FC, FL, FE fault processing method

Outside machine LED3 double 8 indicator light is on and displays: FC, FL, FE. When the indicator light of the external mainboard and the line controller fail, the following figure will be displayed:

07/02/2020

In the post-new crown era, what are the market opportunities for refrigeration companies

In the post-new crown era, what are the market opportunities for refrigeration companies When we thought that the fear and anxiety caused by the new crown epidemic were going away, when we set up stalls in full swing to prepare for the development of the night economy, the small-scale counterattack of the new epidemic in Beijing made the originally slightly relaxed nerves tense again.

01/03/2021

Danfoss expansion valves

New Design for Danfoss T2/TE2 Danfoss has implemented a new patent registration design to protect our expansion valve and the applications of our customers against counterfeit products. Take a closer look at the valve body and you will see that it has 器2䀀
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08/09/2020

Configuration method of refrigeration equipment in air conditioning warehouse

1. Refrigeration system<br></br> Most of the refrigeration equipment of air conditioning storage adopts piston-type single-stage compression refrigeration system, using ammonia or Freon-22 as the refrigerant.

08/15/2020

Cold storage operation maintenance and management methods

1.Booting and preparation before booting Before starting up, check whether the valves of the unit are in normal starting state, check whether the cooling water source is sufficient, and set the temperature according to the requirements after the power is turned on.

08/19/2020

How to operate cold storage to save electricity

How can the cost of cold storage operation be reduced is a point of concern for many people. The operation cost of cold storage is mainly composed of electricity, maintenance, management fees and other miscellaneous items. Today, let's talk about how cold storage can save electricity.

07/07/2020

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

08/19/2020

How to choose the correct cold storage condenser

The condenser is one of the main heat exchange equipment in the cold storage refrigeration system, and its function is to cool and condense the high-temperature refrigerant superheated

05/16/2025

Compatibility Error Between Fuji HMI and Siemens PLC and the Solutions

With the development of computer network and fieldbus technology, PLC and HMI are widely used in industrial control and building automation.

06/14/2020

Price war can open a new chapter of home central air conditioning

Price war can open a new chapter of home central air conditioning Not to mention the magical start of 2020, the past 2019 was a year of intense turbulence in China's air-conditioning industry.