NEC Relay EE2-5NUH

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

06/14/2020

The reason for the failure of the multi-line air-conditioning compressor is revealed!

The reason for the failure of the multi-line air-conditioning compressor is revealed! 1 Overview The failure of motor compressor (hereinafter referred to as compressor) can be divided into motor failure and mechanical failure (including crankshaft, co器2䀀
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08/08/2020

Selection and calculation of differential pressure regulating valve for central air-conditioning chilled water system

In order to ensure that the flow of the chiller in the central air-conditioning chilled water system is basically constant; the operating conditions of the chilled water pump are stable,

07/02/2020

Introducing the performance characteristics of Meiyou Le Maneurop compressor MTZ144

Introducing the performance characteristics of Meiyou Le Maneurop compressor MTZ144 Pictured here: the United States US Youle MANEUROP compressor MTZ144 Product features of MTZ144: 1. The design plan of the US Youle compressor is environmentally friendly, and the series compressors can run smoothly and reliably.

07/17/2024

Irrigation Solenoid Valves: Common Faults, Causes and Troubleshooting

Generally, before diagnosing the problem of irrigation solenoid valves (sprinkler solenoid valves), some work needs to be done: such as determining whether the water source is turned on, whether the controller is connected to the power supply and the program setting is correct, whether the flow control handle on the solenoid valve is closed, and then try operating the valve manually.

08/08/2020

Six common problems of central air conditioning

Six common problems of central air conditioning 1. The dew point temperature of the central air-conditioning machine is normal or low, and the reason for the slow indoor cooling and the solution

09/08/2020

The evolution history of air compressors

The (mechanical) vacuum pump made in Germany in 1640 is the originator of modern air compressors. 　　 Around 1800, the first single-stage (reciprocating piston) air compressor was made in the UK, and its discharge pressure was 1.38MPa (gauge pressure).

08/17/2020

Installation process of ground source heat pump heat exchanger

If the machine works for a long time, it will get hot, because once the machine works, it will do work, and the work will naturally generate a lot of heat. If this heat is not released in time, it is likely to damage the machine.

09/28/2022

What is a Hydraulic Vane Pump?

With the development of hydraulic technology, vane pump, as an indispensable power element, has been more and more deeply penetrated into various fields such as hydraulic systems

08/11/2020

What is the role of the oil separator as a device installed on the discharge end of the compressor

The oil separator separates the refrigerated lubricating oil and refrigerant gas. Note that the oil separator is not installed in every ice water machine, because some ice water machines do not need to install an oil separator.