Central Air Conditioner Frequency Inverter

Central Air Conditioner Frequency Inverter

Central air conditioner frequency inverter High quality frequency inverter for central air conditioner refrigeration compressor group, cooling (heat) medium circulating water system, cooling circulating water system, cooling tower fan and coil pipe fan. Our product has exported to 45 countries...
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Product Details

Central air conditioner frequency inverter

High quality frequency inverter for central air conditioner refrigeration compressor group, cooling (heat) medium circulating water system, cooling circulating water system, cooling tower fan and coil pipe fan.  Our product has exported to 45 countries and has CE certificates.


1. Basic Parameters of Central air conditioner frequency inverter.

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2. Main features and application of the Central air conditioner frequency inverter.

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3. Main parameters of Central air conditioner frequency inverter.

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4. Details of Central air conditioner frequency inverter

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5. Corner of Factory

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8. Central air conditioner frequency inverter application for Cooling water system Closed-loop control
The standard circulating water temperature of the central air-conditioning system is 12℃(intake) / 7℃(outlet), with allowable temperature difference of 5℃. If the temperature difference between the intake and outlet is 2℃, it indicates that the actual demand is just 40% of the supply (2℃/5℃=40%). Thus, if frequency conversion speed control is available at this time, it can adjust the speed of the pump to 40% of its rates speed, which can meet cooling requirements but also can save a lot of energy.

Control proposal: Firstly, confirm the minimum operating frequency of the variable frequency drive (commonly as 25HZ), and set the value as the lower bound of the frequency, so as to fix on the minimum speed of the pump, and then detect the temperature difference between the intake and outlet through an intelligent temperature controller, so as to control the increment and decrement of the VFD frequency.


9. Central air conditioner frequency inverter Wirings diagram

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