Rated Current and Current in mini split Air Conditioner

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Discussion Overview

The discussion revolves around the rated current and actual current consumption of two mini split air conditioners with the same cooling capacity. Participants explore the implications of these electrical specifications on energy consumption and costs, focusing on the differences in rated and maximum current values.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant notes that the second unit's higher rated current might indicate it can draw more power, potentially leading to higher electrical bills.
  • Another participant suggests that the higher current value for the second unit may only represent startup current and advises looking at power usage or efficiency ratings (EER/COP) instead.
  • A different participant questions the use of the term "rated current," indicating it may not be a standard technical term and suggests the second unit might have additional features like electric resistance backup heat.
  • One participant argues that the actual energy consumption difference depends on whether the second unit consistently operates at higher current levels, stating that if both units typically run around 9.5–10 A, the difference may be negligible.

Areas of Agreement / Disagreement

Participants express differing views on the interpretation of the rated current and its implications for energy consumption. There is no consensus on whether the second unit's higher rated current will necessarily lead to increased electrical costs.

Contextual Notes

Participants highlight potential ambiguities in the terms used, such as "rated current," and the need for further clarification on the operational characteristics of the air conditioners.

Shervan360
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Hello,



I am seeing two mini split ACs with the same cooling capacity in two different companies. Both 24000 BTU and Inverter.



The first one said Rated Current is 9.56 A and didn't write Max current or current.

The second one said the Current is 9.9 A and the Rated Current is 16 A.



Does it mean the second one can draw up to 6 A more? (more electrical consumption? and more electrical bills?



Thank you


Screenshot 2024-04-26 203237.png


Screenshot 2024-04-26 203259.png
 
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No, that's just startup current. Look at the power usage and/or EER/COP.
 
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russ_watters said:
No, that's just startup current. Look at the power usage and/or EER/COP.
Thank you, but I don't understand. The first one Rated Current is 9.56 and the second one is in 16 A.
 
I don't think "rated current" is an established technical term and they are using it differently.

Though maybe the second unit has electric resistance backup heat?
 
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Only if the ductless mini split air conditioner consistently runs at a higher current. If both units normally run around 9.5–10 A, you won’t see a big difference. But if the second ductless mini split air conditioner often ramps up to near its 16 A, it could consume more energy over time.
 
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