- Ultra efficient cooling: 12,000 BTU/h capacity with 23 SEER/13 SEER efficiency
- Ultra efficient heating: 12,000 BTU/h capacity with 10 HSPF efficiency/3.5 COP
- Ultra silent operation: as quiet as 27 dB on the indoor section and 52 dB on the outdoor unit
- Ultra capable performance: Heating during -13°F weather and cooling during 140°F weather
- Wi-Fi enabled to program schedules an control functionality via free Pioneer app
8 reviews for Pioneer® Diamante Ultra 12,000 BTU 23 SEER Energy-Star Wi-Fi Ductless Mini-Split Inverter++ Air Conditioner Heat Pump Full Set with 16 Ft. Kit
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D. Workman –
I purchased 2 of these units to replace older Samsung units of similar size that had given up the ghost. I got quotes from several HVAC installers, and they were very expensive. I figured I could buy this unit + tools + the vac pump and still be in for 1/3 of my lowest quote. The install went very well. I had some trouble with the lines kinking due to the way the prior unit was installed, I decided to use a spring tubing bender, which required me to re-flare the ends on the line set. It took about 4 hours each to install, but since it was replacing a unit some of the work (electrical, outside unit mount) was already done. It has been installed for ~ 4 months and I am very pleased with the performance over the winter. The only (kinda nitpicky) thing I have to complain about is that it has a tiny squeak in the sweep vanes when sweep is turned on. The app works great as long as you don’t forget to install the wifi adapter, its instructions are in a different book than the rest of the instructions.
Jane Himes –
This review is for the 220V 18000btu Diamante Ultra system. I just finished the installation so long term reliability and efficiency are not known. The install was not easy due to the need to run the lines around sharp bends and corners. [But, very much worth doing.] The system is very quiet and cools the room thoroughly in a very short time. Once the set temperature is reached, the system is nearly silent. Even the outside unit is quiet. The remote is easy to use and setting the various functions is easy. The unit comes with nearly everything I needed to install. I did need to cut and braze elbows in the 1/2″ line in 3 places because of tight turns that were necessary for keeping the routing neat. The electrical supply is also not included. only the wires that connect the indoor/outdoor units comes in the kit. I also used a vacuum pump and gauges to leak-check and finish the line install. Overall, I would recommend this system highly.
kerry newman –
Qualité prix excellent livraison impeccable
tom braithwaite –
Don’t buy from Jacks Small Engines. I bought 2 units on the same listing from 2 different sellers. The first seller had the unit at my door in 5 days, shipping with ups ground. The other seller, Jacks Small Engines, took days to ship it with a freight company. It took over 3 weeks for that unit to be delivered from the time I placed the order.
The unit itself is great though. Efficient, powerful cooling, not too loud, and fairly easy to install if you have the right tools. Happy I bought 2 of these, and I’d buy them again.
D. Workman –
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I’m still not really sure what the technical differences are between the regular version and the “Diamante Ultra” but the Pioneer store says this is the newest version that was just recently released (purchased July 2022), so I got this one despite the lack of customer reviews for this specific model.
The installation is quite a project, it took me almost a day and a half – but admittedly I was going slow and double-checking everything, every step of the way. Just coincidentally, the copper piping for the coolant was EXACTLY the length that I needed, one foot less and it would have been too short to reach the outdoor unit.
I did get both the “Decorative PVC Slim Line Cover Kit” and the “KWIK-E-VAC Line Set Flushing Kit” … and both turned out to be excellent add-ons. The PVC cover kit looks great (see pictures), and the Flushing kit was very easy to use for prepping the copper pipes – there’s a QR code inside the box with a link to a YouTube video, I followed the instructions step by step and didn’t have any problems at all (the alternative to the KWIK-E-VAC is to buy a $100 vacuum pump.)
The unit is VERY quiet, especially the inside blower. The AC performance is excellent and cools the room down very quickly. I tested the heat function just to make sure hot air comes out, but won’t have an opportunity to run it till winter.
Any downsides? Nothing major. There are different versions of the mounting bracket that secures the inside unit to the wall – so the instructions did not have this exact configuration, which was a little confusing. And once I got to the point where I needed to attach the unit to the wall, I found out that I needed to ream out the hole where the pipes go through in order to get the pipe bundle at the right angle – otherwise the system wouldn’t mount flat against the wall.
Overall, the installation instructions were well written, thorough, and easy to follow, with only a few minor points that could have used a little more detail.
Of course, I can’t speak to the reliability yet – but it’s running fine and seems to be well built. I will certainly post an update if I have any problems as we get more hours on it!
Eric Barnhizer –
Love this mini split! Had it professionally installed in my 2.5 car garage and it works like a charm. Super efficient and run it almost 24/7 with very very little increase to the electric bill. Run it all the time to keep low humidity in the garage and provide comfort for my man space. Total cost was $2,500 installation included. That was one half the cost the local HVAC were quoting. Good purchase.
Dave C. –
This was installed properly, and it worked great for a year and then the compressor started making noise and after a year and a half it no longer works, now i am getting a Daikin.
Eric Barnhizer –
This unit works very well. The contols are great and the unit cools very efficiently and is very quiet. I only ding them one star because the installation is a beast.