Rated Current and Current in mini split Air Conditioner

  • Thread starter Thread starter Shervan360
  • Start date Start date
  • Tags Tags
    Ac Cooling
Click For Summary
SUMMARY

The discussion centers on the comparison of two mini split air conditioners, both rated at 24000 BTU and featuring inverter technology. The first unit has a Rated Current of 9.56 A, while the second unit lists a Current of 9.9 A and a Rated Current of 16 A. The key takeaway is that the second unit's higher Rated Current may indicate potential for increased energy consumption, particularly if it frequently operates near its maximum rating. However, both units typically operate within a similar current range, suggesting minimal difference in energy usage under normal conditions.

PREREQUISITES
  • Understanding of mini split air conditioner specifications
  • Knowledge of electrical current terminology (Rated Current, Startup Current)
  • Familiarity with energy efficiency metrics (EER/COP)
  • Basic principles of inverter technology in HVAC systems
NEXT STEPS
  • Research the differences between Rated Current and Startup Current in HVAC systems
  • Learn about energy efficiency ratings such as EER and COP for air conditioners
  • Explore the impact of electric resistance backup heating in mini split systems
  • Investigate how inverter technology affects energy consumption in air conditioning units
USEFUL FOR

HVAC technicians, energy efficiency consultants, and homeowners considering mini split air conditioning systems will benefit from this discussion.

Shervan360
Messages
26
Reaction score
4
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
 
Engineering news on Phys.org
No, that's just startup current. Look at the power usage and/or EER/COP.
 
Reply
  • Informative
  • Like
Likes   Reactions: Shervan360 and berkeman
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?
 
Reply
  • Love
Likes   Reactions: Shervan360
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.
 
Last edited:

Similar threads

Cooling a sun room with A/C and windows
  • · Replies 19 ·
Replies
19
Views
2K
HVAC The technician installed a new AC split without a vacuum pump
  • · Replies 6 ·
Replies
6
Views
4K
I have a few questions about refrigeration and AC units
  • · Replies 1 ·
Replies
1
Views
3K
Can RCCB trigger falsely when it is in line with induction motors?
  • · Replies 28 ·
Replies
28
Views
3K
Some guidance about heating calculations (homemade heat-pump)
  • · Replies 3 ·
Replies
3
Views
3K
How can i do the correct sizing for split air conditioner?
  • · Replies 15 ·
Replies
15
Views
9K
Air conditioner Energy consumption for my Scenario
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Daytime: Solar->Ice-> Nighttime:Air conditioning
  • · Replies 6 ·
Replies
6
Views
2K
Multiple in-phase AC sources to a load
  • · Replies 4 ·
Replies
4
Views
3K
Current of AC transmission lines and electricity in general
  • · Replies 69 ·
3
Replies
69
Views
9K