LETO Series Mini Split Air Conditioner Heat Pump, 9000 BTU 110/120V, Inverter, Works with Alexa, SEER2 21.5, White

This is a great, high-quality product that functions well. I thoroughly recommend the Senville for quality and performance. The install is a difficult level DIY and should only be attempted after proper research and with proper tools. Physically installing the units is easy. Wiring the units is not difficult but is time consuming, especially accounting for running a dedicated 20A electrical circuit. Line set installation is more involved. I chose to hang the inside unit before attaching the line set because of how I chose to run the refrigerant piping inside the room and then straight through the wall to the outside unit. I made my own wall pass-through sleeve from 3" pvc to give a little more working space. The included sleeve is very thin and flimsy. Line set flare nuts MUST be torqued to spec. I had one nut that failed and had to remove, replace with an included extra, and reflare the connection when I found the leak during the first pressure test. I shortened the refrigerant piping at the outside unit to fit with no looping of pipes. I used an eccentric flaring tool to remake the connection after shortening. Next step of pressure testing with nitrogen MUST NOT BE OMITTED. You will need a HVAC charging manifold, special fittings, a micron vacuum gauge, HVAC leak test soap, a compressed nitrogen tank and regulator, and a vacuum pump. A competent pro installer will do this--but many HVAC techs skip the pressure test step. I pressure tested and found the bad flare nut leak, repaired it, and pressure tested again to 300psi nitrogen. This forces most air and water out of the lines. I left the lines on pressure, applied leak test soap and left the set up for over 1 hour. There was absolutely no leakage according to the HVAC manifold gauge. After pressure testing, a vacuum test was performed using a micron vacuum gauge to make sure all nitrogen, air and water vapor was removed from the lines. You will need special fittings as mentioned, to insure that the lines remain isolated from the pump after evacuating. I vacuumed down to 220microns and let it sit for 30+ minutes. The gauge remained well below 300 microns. (the standard is to remain below 500 microns). This step double checks for leakage and confirms removal of all gasses and water before releasing the factory charge into the system. Next, isolate the gauge from the system using the special fittings, and release the refrigerant charge from the compressor into the system. After a final check for leaks after removing all gauges and fittings, the system was ready to power up and test run. Note: the flare nuts are crudely shaped on the outside (seem to be cast, rather than machined) so normal open ended wrenches do not fit them well. You will have to use adjustable wrenches to adjust them when installing. Using a torque wrench on those flare nuts is difficult because of the non-standard finish and sizing. A $175 adjustable wrench head HVAC torque wrench (made by Yellow Jacket) would really assist here, but I had a standard torque wrench with crow's foot wrench adapters. I made it work... but that's not an easy way to do it. I doubt many techs carry the special torque wrench and will just do the flare nuts by feel based on experience. The test run of the unit revealed no leaks, so I wrapped up the line set at the connection points and finished the install. I used a line set cover flashing to protect the lines where they emerged from the outside wall. Zip ties where needed to secure the wrapping tape. Big HVAC type zip ties screwed to the wall to mount the indoor line set in permanent fashion. double checked the drain line was working properly without restriction by pouring water in the top of the inside unit and verifying full drainage. I left the primary drain line joint uncovered inside so I could have access if there was ever a blockage. The unit heats wonderfully, cooling is great, too, but I will have to confirm how that works on a really hot day this summer. You will have to run the cooling check on manual cool override if temperature is below 62º outside (it was cool here on the test day). The air output on cooling feels ice-cold. Spend the time and money to install it correctly and the Senville will serve you well, I think. If you are not comfortable doing it DIY, then hire a good installer. You will not have factory warranty without a professional installer according to Senville. I chose DIY anyway after researching the process and finding than some installers skip the pressure test. (Senville in fact does not insist on a pressure test in the install manual.) 22 months in, I could not be more pleased. Keeps my garage/workshop comfortable year round (outside temps ranging from 7° to 97°) and has very little impact on my power bill. Just keep the filters and fins clean for best efficiency. So far, I have not needed to clean the blower wheel. No problems with the condensate drain at all.

First time installing one of these. Put it in my new office which is separate from the house HVAC on as part of my garage. Inside Install: The inside unit was a breeze to install. I had space inside the wall so my lines are run in-between the 2x6 walls instead of the outside. the white rap that goes around the lines is like tennis racquet grip, only sticky on the ends so I didn't use it. I used foil based tape to wrap everything. Outside Install: again, pretty easy. I used sakrete to make a 3x4 pad and then after it was dry used a hammer drill to set anchors to bolt the unit down. I got a exterior dryer vent at lowes for where my lines come out of the house(my lines are inside the wall) and foil tape wrapped everything. Charging: You do need a vacuum pump, gauges and mini-split gauge adapters. If you have that...this is a simple job. Luckily my dad had all the stuff I needed! Vacuum to -25lbs took about 5 minutes. It held -25lbs for an hour so I knew there were no leaks. removed the gauges and release the freon. instant cold air and VERY quiet. what I learned after the fact: -The wireless module is an extra purchase....not needed for me but would have been nice. definitely not work 100 bucks. -There is no fan eco mode which means the inside fan runs non-stop even in "auto" mode. You can't hear it at all and its a non-issue. The compressor only kicks on when it needs to cool or heat. -Nail Polish Remover will remove all the senville and Leto logo's from the unit so that is is just white and blends into the wall. -I have seen zero change in my electric bill so far and Texas gets HOT. -I thought A/C was hard, turns out...its not rocket science, just requires a couple specific tools. The quote from my local guy for a similar system was 3k(and this was NOT a mitsu)...this was much much cheaper even if it were to fail at a faster ratio than what the A/C guy proposed. -I quit fiddling with the temp once I got it where I like it and haven't touched it since. In my small 275sq ft office that is foam insulated with 5/8 drywall I have to wear a jacket with the thermostat at 76 degrees with the 9k unit. any colder than that its hard to be in here. Insulation plays a huge role...but this is a really efficient unit. Summary: easy, cheap, efficient, no brainer. Im sure there are much nicer systems out there...but this unit is doing its thing and that's all I care about. Update: The unit is still awesome 6 months later. Quiet and insanely efficient. Update 2: The WIFI modules are UNIVERSAL!!! Order this Wifi module for $29 -> PIONEER Wi-Fi Remote Programming and Access Module for Pioneer WYS Series Heat Pump Systems the Senville Leto Wifi module costs between 79-99 depending on the sales. After doing some research turns out all of these units are "midea" based units and here are many of the units that fall into that category (Hualing, Senville, Klimaire, AirCon, Century, Pridiom, Thermocore, Comfee, Alpine Home Air, Artel, Beko, Electrolux, Galactic, Idea, Inventor, Kaisai, Mitsui, Mr. Cool, Neoclima, Olimpia Splendid, Pioneer, QLIMA, Royal Clima, Qzen, Toshiba, Carrier, Goodman, Friedrich, Samsung, Kenmore, Trane, Lennox, LG, Electra). Installation was easy: 1. Downloaded the NetHomePlus app, created an account and had it ready to go. 2. Turned Breaker off to the Senville Leto Split. 3. Plug in the USB module into the lid of the senville (the lid opens up and it plugs right tin). 4. Turn break back on. 5. Open NetHomePlus, click add unit. (instructions online say you need to scan the included QR code. I did not, the app just found the unit and auto added the split, didn't have to do any of the "AP Mode" instructions) 6. the App configured the wifi, changed the units to Farenheight and I was done. Working perfectly. ----- Extra steps: I wanted to then add it into my HomeKit setup that im using with Hoobs(home bridge). In Hoobs(home bridge) install the Midea Air Bridge (1.4.1 at the time of this review) (https://github.com/hillaliy/homebridge-midea-air). 7. Add username and pass from NetHomePlus app into the config. The MideaAirBridge auto found the unit and didn't even have to configure it. 8. Add the accessory in Homekit and it will put a device in the room from the split. Still loving the Senville and now that I have it setup on wifi with HomeKit im very happy.

Works great 👍, Very Quiet inside air handler and outside heat pump. I wish it had better protection for the condenser in the outside heat pump. My Mitsubishi has better protection screens on the side while this sesville is left open and unprotected, (possibly for efficiency) it will last and be durable as long as you keep the elements out of it , rain / snow / tree debris out of it . My friend who installed it has worked in the field for 32 years HVAC, just took a a couple hours. I was even able to use an electrical extension cord to get it up and running until the electrician and I get together to run the permanent electrical feed up to code. The cooling works so well for the room 12X14 it easily cools it to 62 within ten min when I connected it and it was 80 in the room. For the price I paid for it my installer friend was very impressed with the quality for the price. Had I known it was this cheap and easy to install I would have done it ten years ago … just had a baby and baby now is comfortable for his daytime naps. A Big Thanks to Amazon and Senville for everything.

Great price

I installed this in my 44 ft rv and it was easy. This thing burns half the power my electric fireplace did and is quiet. It puts out nice heat and it dehumidifies the trailer very quick. I have put away the 2 dehumidifiers and the fireplace. My furnace runs less than half as much and no hot -cold temp swings. Just nice even temps. (Alexa will only turn it on or off, you can't change temp or mode.)

UPDATED: Running STILL on my solar after years and many bumpy miles!! .... Well, it's been running all summer on my solar/battery/invertor setup.. like I mean I just left it turned on AC all summer in the driveway/campsite/ whatever and I've had no problems at all. I put this on the back bumper of my Motorhome, and the head unit inside just right of my entry door. In normal mode, this will draw max 460w. And it's WAY WAY better than any 5000btu window air conditioner. Totally silent running, no vibrations, nothing. Mostly it uses under 250w when running after the room gets cooled off and it's just doing maintenance on the cool. Seriously, I can't imagine why every RV doesn't come with these. It's so far superior to every other AC. BUT.. the install is a bunch of work, Be prepared for some insulation, tubes, wiring, holes, filling, bolting, brackets, etc etc. The install isn't for the first timer or the faint of heart, but once it's all in, it's truly worth every minute of effort. And the heating function works amazing too! Super nice warm air from the unit inside, and the only draw back to the heating cycle is the outside compressor works at higher speed and watt usage goes up to over 650w when heating. (as well as TURBO AC mode). There doesn't seem to be a light duty heating mode, like there is with the AC modes. Love this thing. Never going back.

Ordered and received the product. The delivery came via contract carrier who was supposed to have contacted us to agree on a delivery date, but instead they simply called said "we have a delivery for you today" and it came to our house and my wife accepted it, noting significant damage to the box which the carrier acknowledged. When I got home and had a chance to unpack the main unit, the side was bashed in right where the box had been damaged. The sheet metal was distorted by about an inch or so. When contacted Senville offered an immediate replacement, or the option of a discount as they felt the damage would not affect function. We opted for replacement and it arrived just a few days later, no question or hassle of any kind. We have not had a chance to install yet, but I have a professional HVAC guy lined up to do so, so I can't comment on some of the other things the DIY'ers are talking about.

I have helped install a lot of these, not because I am a professional but because I purchased one many years ago and installed it myself. [Have purchased additional units since]. I called a 'pro' to evacuate the lines but was quoted a fee that was twice the price of a 'hobby grade' vacuum pump and hi-lo gauges. I purchased said pump and gauges. Following the Senville evacuation instructions proved to be very simple. I was so happy with the mini-split I of course told everyone that asked just what a great deal and high value the unit was. So when asked to help finish their installs I was only too happy to oblige. To date every single one has worked perfectly. So if you are looking for a high quality mini-split that is simple to install you can't miss with this unit. Even if you need to purchase a vacuum pump and gauges like I did or get a pro to suck the lines. Senville you have an excellent product and a hard to beat price, keep up the good work and I will continue to tell everyone they will find it hard to get a better mini-split.