Danfoss Compressor DSF485A9ALW

09/07/2020

What happens if the air compressor uses three filters and one oil for an extended period of time

The "three filters and one oil" of the air compressor have a specified service life, which is generally replaced after 2000 hours of use. If you continue to use it beyond the service period, it will bring a lot of harm to the normal operation of the air compressor,

01/14/2025

Refrigerator PTC Relay Wiring Method

The PTC (positive temperature coefficient) relay is directly connected in series with the secondary winding (start winding).

09/02/2022

The Working Principle of the Vacuum Contactor

The vacuum contactor uses the vacuum interrupter to extinguish the arc to frequently connect and cut off the normal working current.

06/14/2020

York YK centrifugal water chiller overhaul; unit vibration failure

York YK centrifugal water chiller overhaul; unit vibration failure York YK centrifugal water chiller overhaul, unit vibration failure: Reason: Remedy: • Coupling is out of center • Realignment • Bearing wear • Overhaul and replace the bearing 器2䀀
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08/07/2020

Use and selection of water pumps for HVAC systems

1. Chilled water pump:<br></br> 　　In the chilled water loop, a device that drives water to circulate. The end of the air-conditioned room (such as fan coil, air handling unit, etc.)

07/29/2022

What is Hydraulic Motor

Hydraulic motor is an executive component of the hydraulic system, which converts the hydraulic pressure energy provided by the hydraulic pump

07/24/2020

Air conditioning system fault diagnosis guide (part 2)

This article continues from the previous article: A Guide to Fault Diagnosis of Air Conditioning System (Part 1) During the intense heat, air-conditioning maintains the "life" of some people. People are afraid of heat that they can't live without air-conditioning.

09/14/2020

What are the reasons for the high temperature of the air compressor

The air compressor is a transmission machine. If the equipment running at high speed is not properly lubricated or cooled, it will inevitably produce high temperature. Excessive temperature will cause changes in the physical coefficient values ​​of the rotor and bearing materials, and in severe cases, the entire main engine will bite.

06/29/2020

What is the cause of compressor pipeline vibration

03/13/2021

Working principle of servo drive

At present, most servo drivers use digital signal processor (DSP) as the control core, which can achieve more complex control algorithm, digitalization, networking and intellectualization. The drive circuit based on intelligent power module (IPM) is widely used in power devices.