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david3808 84.6K Views
May 22, 2021 8:19 PM

DuctlessAire 12 Seer 12000 BTU 220V 1-Ton Ductless Mini Split Air Conditioner

$779

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Home Depot has DuctlessAire 12 Seer 12000 BTU 220V 1-Ton Ductless Mini Split Air Conditioner & Heat Pump Variable Speed Inverter w/ WiFi (DA1221-H2) for $779. Shipping is free.

Thanks to community member david3808 for finding this deal.

Included:
  • Copper tubing w/ insulation and nuts
  • Control wire
  • 6' drain hose
  • Wall sleeve
  • Wall sleeve cover and tape

Editor's Notes

Written by CChoiVA
  • About this product:
    • Rated 4.9 stars out of 5 overall based on 900+ reviews on Home Depot
    • 2-direction air vane
    • Built-in electronic diagnostic monitoring
    • Dual washable filters
  • About this store:
    • Home Depot Return Policy may be found here

Original Post

Written by david3808
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Home Depot has DuctlessAire 12 Seer 12000 BTU 220V 1-Ton Ductless Mini Split Air Conditioner & Heat Pump Variable Speed Inverter w/ WiFi (DA1221-H2) for $779. Shipping is free.

Thanks to community member david3808 for finding this deal.

Included:
  • Copper tubing w/ insulation and nuts
  • Control wire
  • 6' drain hose
  • Wall sleeve
  • Wall sleeve cover and tape

Editor's Notes

Written by CChoiVA
  • About this product:
    • Rated 4.9 stars out of 5 overall based on 900+ reviews on Home Depot
    • 2-direction air vane
    • Built-in electronic diagnostic monitoring
    • Dual washable filters
  • About this store:
    • Home Depot Return Policy may be found here

Original Post

Written by david3808

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168 Comments

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May 23, 2021 6:44 PM
1.1K Comments
Joined Apr 2006
argentumMay 23, 2021 6:44 PM
1.1K Comments
Quote from Deal Hound View quoted comment :
The unit she installed in the video has a pre-charged line set (and condenser). This DuctlessAire unit only has a pre-charged condenser, which means evacuating the rest of the system with a vacuum pump is necessary.
Ah that is very awkward EEK!
It is like wipe your ass half way after poop and pull up the pants LMAO
1
May 23, 2021 10:09 PM
4.4K Comments
Joined Jul 2005
geekwithoutacauseMay 23, 2021 10:09 PM
4.4K Comments
Quote from flunder View quoted comment :
Taking a quick stab:

Pros-
No duct work is obvious.
On demand which can save heating/cooling bill.
More precise temperature control "zones".

Cons-
The zones play as double edge sword, when moving in or out the heated/air conditioned space takes some getting used to.
The indoor unit hangs on the wall compare to just a register, so the wall is more or less occupied.
Have to run additional electricity to both in door and outdoor units and the tubes from the indoor unit to the outdoor unit.
More filters to clean.
I think you only run electricity to the outdoor unit. Nothing needed to indoor unit except the lines coming from the outdoor unit going to the indoor unit. This carries power as well.
May 23, 2021 10:13 PM
4.4K Comments
Joined Jul 2005
geekwithoutacauseMay 23, 2021 10:13 PM
4.4K Comments
Quote from luddite_cyborg View quoted comment :
I need to do some research, maybe someone with the know-how can weigh in:
Comparing the 9000 to 12000 BTU models, the 12000 is quieter and has a variable speed inverter for the heat pump (for $80 more).
I'd prefer the 12000 model but it's oversized for my basement room (~300 sq ft). How bad of an idea is it to install the oversized 12000 BTU model? Can I expect freezing coils, etc. like with a standard window AC?
Shouldn't be a problem. It will just cool things down quicker and run shorter times. But since it has variable speed inverter(?) it probably doesn't even matter. I would do it.
May 23, 2021 10:14 PM
4.4K Comments
Joined Jul 2005
geekwithoutacauseMay 23, 2021 10:14 PM
4.4K Comments
Quote from Bboy486 View quoted comment :
Is the 18,000 something that can work to cool a garage? Two car and I am aware of air escaping from the door and lack of insulation. But I am in AZ and want to put a gym in my garage.
How big is the garage? If you're in the phoenix area, it will have to work pretty hard. Also, is the garage door facing south? All things to consider.
May 23, 2021 10:20 PM
4.4K Comments
Joined Jul 2005
geekwithoutacauseMay 23, 2021 10:20 PM
4.4K Comments
Quote from Saving4Broke View quoted comment :
Hold up, lots of misinformation here. You're going to be installing the Mr. Cool exactly the same way as every other unit out there. The difference is the refrigerant is in the condenser unit ready to go in the conventional units (like this one) vs the Mr cool units having it in the lineset. Know that you also cannot cut to length with the Mr. Cool either making some people getting creative with the excess line length that causes problems a lot of times because if you're going to coil it up, it needs to sit horizontal. At the end, if you install them yourself, the conventional unit will run you about $250 or so for a professional to purge the lines with nitrogen, vacuum it down below the magical 500 micron level, check for leaks, then release the refrigerant.
I don't recall seeing the coils needing to sit horizontal in the mrcool documentation. Are you sure?
May 23, 2021 10:26 PM
2.3K Comments
Joined Dec 2006
dvpatelMay 23, 2021 10:26 PM
2.3K Comments
Quote from Saving4Broke View quoted comment :
Hold up, lots of misinformation here. You're going to be installing the Mr. Cool exactly the same way as every other unit out there. The difference is the refrigerant is in the condenser unit ready to go in the conventional units (like this one) vs the Mr cool units having it in the lineset. Know that you also cannot cut to length with the Mr. Cool either making some people getting creative with the excess line length that causes problems a lot of times because if you're going to coil it up, it needs to sit horizontal. At the end, if you install them yourself, the conventional unit will run you about $250 or so for a professional to purge the lines with nitrogen, vacuum it down below the magical 500 micron level, check for leaks, then release the refrigerant.
Yeah. Lots of misinformation including your's.

The Mr. Cool units do not have anything in the linesets either. The only difference is the Mr. Cool linesets are vacuumed and sealed and have valves which open up when you connect them. So, you do not need to vacuum the Mr. Cool units. The rest of the lot has open lines and once you connect them, you still have to vacuum the lines regardless of if you cut them or not.

The reason Mr. Cool lines can't be cut is because of the special valves at each end which keep the lines sealed during shipment.
May 23, 2021 10:39 PM
866 Comments
Joined Nov 2009
PlanetoftheMapesMay 23, 2021 10:39 PM
866 Comments
Quote from dvpatel View quoted comment :
Yeah. Lots of misinformation including your's.

The Mr. Cool units do not have anything in the linesets either. The only difference is the Mr. Cool linesets are vacuumed and sealed and have valves which open up when you connect them. So, you do not need to vacuum the Mr. Cool units. The rest of the lot has open lines and once you connect them, you still have to vacuum the lines regardless of if you cut them or not.

The reason Mr. Cool lines can't be cut is because of the special valves at each end which keep the lines sealed during shipment.
This is correct, the condensers still hold the charge in the MRCOOL DIY units as far as I'm aware and the line sets are what are vacuumed just like you said.

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May 23, 2021 11:03 PM
114 Comments
Joined Feb 2016
Bboy486May 23, 2021 11:03 PM
114 Comments
Quote from geekwithoutacause View quoted comment :
How big is the garage? If you're in the phoenix area, it will have to work pretty hard. Also, is the garage door facing south? All things to consider.
Facing north. 2-car. I'm going to try it and see if it helps at all
May 24, 2021 2:00 AM
3.4K Comments
Joined Jul 2013
madmax718May 24, 2021 2:00 AM
3.4K Comments
Quote from Bboy486 View quoted comment :
That is more than fine. I can automate it
For these units it's usually more efficient to just set a temp. But az weather can be really cold at night too. Just get a roll of reflextix and line your garage door
May 24, 2021 6:59 AM
295 Comments
Joined Aug 2013
BENJAMINB1246May 24, 2021 6:59 AM
295 Comments
Quote from geekwithoutacause View quoted comment :
Shouldn't be a problem. It will just cool things down quicker and run shorter times. But since it has variable speed inverter(?) it probably doesn't even matter. I would do it.
Without knowing what their load calculations are, going with the 12k unit might be a very bad idea. For the most part, inverter compressors are designed to run 24/7. They also have a minimum output (I didn't see it listed for this unit). Now over sizing has nothing to do with coils freezing over,, but what will happen is short cycling, which causes excessive wear and a room that's cold and clammy because the moisture is being pulled out.
1
May 24, 2021 12:51 PM
4.4K Comments
Joined Jul 2005
geekwithoutacauseMay 24, 2021 12:51 PM
4.4K Comments
Quote from BENJAMINB1246 View quoted comment :
Without knowing what their load calculations are, going with the 12k unit might be a very bad idea. For the most part, inverter compressors are designed to run 24/7. They also have a minimum output (I didn't see it listed for this unit). Now over sizing has nothing to do with coils freezing over,, but what will happen is short cycling, which causes excessive wear and a room that's cold and clammy because the moisture is being pulled out.
Nice try but wrong.
These ac compressors are not meant to run 24/7 ever. IF you do , the unit is WAY too small.
Also, since it's a basement it probably won't gain a lot of heat and the ac will run very infrequently.
Cold and clammy completely depends on the climate. Cold and clammy is because the ac doesn't get time to remove the moisture but does have time to cool it down (too quickly). So the moisture actually stays in the room. Going from 8K to 12K isn't going to cause that.
1
May 25, 2021 4:19 AM
295 Comments
Joined Aug 2013
BENJAMINB1246May 25, 2021 4:19 AM
295 Comments
Quote from geekwithoutacause View quoted comment :
Nice try but wrong.
These ac compressors are not meant to run 24/7 ever. IF you do , the unit is WAY too small.
Also, since it's a basement it probably won't gain a lot of heat and the ac will run very infrequently.
Cold and clammy completely depends on the climate. Cold and clammy is because the ac doesn't get time to remove the moisture but does have time to cool it down (too quickly). So the moisture actually stays in the room. Going from 8K to 12K isn't going to cause that.
Maybe you should do some research before commenting. I've been in HVAC for almost 20 yrs, have installed 100's of mini splits, and have serviced countless numbers of them. So I think I might know what I'm talking about.

1st, 12k is massive for 300 sq ft (obviously I don't know his load or what he has in there, but a quick manual j for my area puts it at about 2,000 btu's.)

2nd, almost all basements already have a high RH and when you start cooling it it gets worse unless the unit runs long enough to remove it. Short cycling will make it worse.

3rd, this is an INVERTER COMPRESSOR. You might want to read up on them. They ARE designed to run all the time. I couldn't find the exact specs for this unit, so I don't know what the minimum flow is. They also don't specify if they use some type of fuzzy control or a basic delta T. So it is possible that their lowest flow is still fairly high. But nevertheless it's designed to keep running.
https://www.anracelectrical.com.a...verter-ac/
May 25, 2021 4:48 AM
295 Comments
Joined Aug 2013
BENJAMINB1246May 25, 2021 4:48 AM
295 Comments
Quote from PlanetoftheMapes View quoted comment :
This is correct, the condensers still hold the charge in the MRCOOL DIY units as far as I'm aware and the line sets are what are vacuumed just like you said.
I don't know why everybody is thinking this. The charge in the condenser is only the amount needed for the condenser itself. The MrCool DIY linesets are precharged with refrigerant down to the exact ounce for the length of that particular lineset. If they weren't you would have to figure out how many ounces of refrigerant are in each foot and add it to the unit.
May 25, 2021 4:52 AM
295 Comments
Joined Aug 2013
BENJAMINB1246May 25, 2021 4:52 AM
295 Comments
Quote from dvpatel View quoted comment :
Yeah. Lots of misinformation including your's.

The Mr. Cool units do not have anything in the linesets either. The only difference is the Mr. Cool linesets are vacuumed and sealed and have valves which open up when you connect them. So, you do not need to vacuum the Mr. Cool units. The rest of the lot has open lines and once you connect them, you still have to vacuum the lines regardless of if you cut them or not.

The reason Mr. Cool lines can't be cut is because of the special valves at each end which keep the lines sealed during shipment.
MrCool DIY linesets aren't vacuumed. They come precharged with the exact amount of refrigerant, down to the ounce, for that particular length. Otherwise you would have to weigh in a charge for every lineset you added.

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May 25, 2021 5:04 AM
295 Comments
Joined Aug 2013
BENJAMINB1246May 25, 2021 5:04 AM
295 Comments
Quote from geekwithoutacause View quoted comment :
I don't recall seeing the coils needing to sit horizontal in the mrcool documentation. Are you sure?
you always have to lay the extra coil horizontal, it's in the manual somewhere. If you don't you run the risk of oil sitting in the bottom of the loops instead of returning to the compressor; and no oil is very bad. There can be other issues as well. Though sometimes you are required to have an oil trap, but that's not the same as having extra coils.

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