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Interesting feature on Della Optima mini split

Koldsimer

Koldsimer

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Joined
Dec 4, 2021
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606
As i was researching the newest mini splits, i stumbled across an interesting feature for the 12k BTU 23seer 230v Della Optima mini split. In the app, it provides an option to run the unit at a set percentage of it's max capacity. It has 30, 50 and 80 percent options.

I have always wanted to have this ability because it allows for easy energy usage calculations. This is very handy when you only want to be certain to use a set amount of energy over any time period. When running in normal cooling mode, mini splits can run anywhere between 20 and 100% of their rated capacity, making long term calculations a guess at best.

Not sure if other brands have this option but it's the first time i have seen it and i thought it's a great idea.
 
All my Toshiba and Daikin units have this feature also, though we typically just run them at 100% as they only draw around 600w each max. What I have found out recently is with the simple house fan, I use alot of them during the day to control the load on our off-grid system and on the lowest setting our fans draw 70w at setting two 75w and setting three 80w seems strange the difference in fan speed for a very little power draw difference.
 
wpns said:
That just tells you the system has a 65W idle draw and 5W per fan step (or something).
Click to expand...
No I talking simple tower fans they have 3 windings no idle shortest winding is 70w middle is 75w longest is 80w I would have thought the lowest setting would use considerably lower power than the highest but a 10w difference is nothing.
 
I just put in one of their newer 11k 120v. I will have to see if it has that feature. Would be nice to have 10% steeps from 10-90. Its a nice start. I have been wanting that feature too!

It would be handy to go down low for the overnight battery drain or if someone had a small inverter and didn't want it to ramp up on the initial startup. Some do that.
 
ThaiTaffy said:
No I talking simple tower fans they have 3 windings no idle shortest winding is 70w middle is 75w longest is 80w I would have thought the lowest setting would use considerably lower power than the highest but a 10w difference is nothing.
Click to expand...
Oh, sorry, I missed the context switch between inverter-based splits and tower fans. I wonder if the PF changes a lot on the tower fans, I'll have to try measuring one when my Round Tuit arrives.
 
wpns said:
Oh, sorry, I missed the context switch between inverter-based splits and tower fans.
Click to expand...
Sorry offtopic rambling after pointing out our 8 year old AC units can select a percentage of power draw.
wpns said:
I wonder if the PF changes a lot on the tower fans, I'll have to try measuring one when my Round Tuit arrives.
Click to expand...
Just looked now at lowest speed I get a pf of 0.97 at highest it's 1
 
sunsurfer said:
I just put in one of their newer 11k 120v. I will have to see if it has that feature. Would be nice to have 10% steeps from 10-90. Its a nice start. I have been wanting that feature too!

It would be handy to go down low for the overnight battery drain or if someone had a small inverter and didn't want it to ramp up on the initial startup. Some do that.
Click to expand...
Features and real life numbers can be very different I'll take a look on my ac units tonight and see how much the supposed percentage actually affects power draw.
 
Sorry I forgot to look last night but just had a check now and our Toshiba AC unit on 100% is drawing 430w and at 50% it's 370w doesn't seem like a massive saving but maybe the Della system has a larger difference.
 
ThaiTaffy said:
Sorry I forgot to look last night but just had a check now and our Toshiba AC unit on 100% is drawing 430w and at 50% it's 370w doesn't seem like a massive saving but maybe the Della system has a larger difference.
Click to expand...
Yeah, I wouldn't call 86 percent 'half', but I suppose it's better than nothing. Putting it in 'dry' mode (if available), or turning up the set point will probably make more difference.
 
wpns said:
Yeah, I wouldn't call 86 percent 'half', but I suppose it's better than nothing. Putting it in 'dry' mode (if available), or turning up the set point will probably make more difference.
Click to expand...
Lol dry mode, it's monsoon season in Thailand the inverter would likely explode.
 
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