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MRCOOL Advantage 5th Gen 9,000 BTU 21.5 SEER2 Ductless Mini Split Air Conditioner and Heat Pump - 115V

MRCOOL Advantage 5th Gen 9,000 BTU 21.5 SEER2 Ductless Mini Split Air Conditioner and Heat Pump - 115V

Regular price $895.00 USD
Regular price $1,092.99 USD Sale price $895.00 USD
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⭐ 21.5 SEER2
⚡ Voltage: 115V
❄️ Professional Installation Required


SKUA-09-HP-115D-O

TypeComplete System

Refrigerant Type: R-454B

✅ This item is in stock!

16 in stock

Estimated Delivery: October 28 – October 30

Based on order date & typical delivery times.
• Orders Typically ship within 2 business days

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PRODUCT DESCRIPTION

MRCOOL 5th Gen Advantage 9,000 BTU 115V Ductless Mini Split Heat Pump – R-454B Refrigerant

Upgrade your comfort with the MRCOOL 5th Generation Advantage 9K Ductless Mini Split Heat Pump. This high-efficiency 9,000 BTU system runs on 115V power and features the new, eco-friendly R-454B refrigerant, which offers enhanced energy efficiency, lower greenhouse gas emissions, and a significantly reduced Global Warming Potential (GWP) compared to older refrigerants.

Perfect for bedrooms, offices, small living areas, or add-on spaces, this unit provides quiet, reliable heating and cooling—without the need for ductwork. The slim indoor air handler is sleek, space-saving, and designed for year-round comfort.

🔧 Key Features:

  • 9,000 BTU Capacity – Ideal for rooms up to 400 sq ft

  • 115V Power Supply – Great for homes with standard outlets

  • R-454B Refrigerant – Environmentally friendly and energy efficient

  • Built-in Wi-Fi – Control from anywhere using the SmartHVAC app

  • Quiet Operation – Enjoy comfort without the noise

  • Affordable Performance – A great solution for budget-conscious homeowners

📱 Smart Comfort Control

With Wi-Fi remote access, you can easily adjust your home's temperature from your smartphone or tablet. Schedule temperature changes, use sleep mode, and optimize energy savings from anywhere.

🛡 MRCOOL Warranty Coverage:

  • 2-Year Parts Warranty

  • 1-Year Compressor Warranty

  • 1-Year Remote Control Warranty

  • Limited Lifetime Coverage available with MRCOOL® Care Program enrollment


⚠️ Note: The Advantage Series is not DIY-installable. It must be installed by a licensed HVAC professional to ensure proper operation and warranty coverage.


Looking for a DIY installation option instead?
✅ Check out the MRCOOL 5th Gen 9K DIY Mini Split System

Condenser Specifications:

BRAND NAME MRCOOL
SERIES Advantage 5th gen
MODEL A-09-HP-C-115D-O
GTIN 840255586801
UPC 840255586801
UNIT TYPE Mini-Split
EQUIPMENT TYPE Condenser
SHORT DESCRIPTION
Advantage 5th Gen 9k BTU 115V Condenser
SEER2 21.5
EER2 12.5
HSPF2-4 9
HSPF2-5 7
TONNAGE 0.75
COOLING CAPACITY (BTU) 9000
HEATING CAPACITY (BTU) 10000
VOLTAGE (V) 115
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 20
MIN CIRCUIT AMPACITY (A) 18
ZONE CAPACITY 1
REFRIGERANT TYPE R-454B
REFRIGERANT VOLUME (OZ) 21.52
DECIBEL RATING (DBA) 52.5
INVERTER DC
MAX LINESET LENGTH (FT) 82
LIQUID LINE SIZE 1/4
SUCTION LINE SIZE 3/8
COMPRESSOR MOTOR TYPE ROTARY
OVERLOAD PROTECTION Yes
APP COMPATIBILITY Yes
WORKS WITH IOS Yes
WORKS WITH ANDROID Yes
UL LISTED Yes
CSA LISTED Yes
ETL LISTED Yes
ENERGY STAR CERTIFIED Yes
AHRI CERTIFIED Yes
REGISTERED WARRANTY Extended Limited Lifetime*
BASE PARTS WARRANTY 1 Year
BASE COMPRESSOR WARRANTY 2 Years
HAS BATTERIES Yes
CONTAINS CHEMICALS Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 11.93
NET HEIGHT (IN) 21.85
NET WIDTH (IN) 30.12
NET WEIGHT (LBS) 56.66
GROSS DEPTH (IN) 13.27
GROSS HEIGHT (IN) 24.02
GROSS WIDTH (IN) 34.92
GROSS WEIGHT (LBS) 62.17

 

Air Handler Specifications:

BRAND NAME MRCOOL
SERIES Advantage 5th gen
MODEL A-09-HP-WMAH-115D-O
GTIN 840255586870
UPC 840255586870
UNIT TYPE Mini-Split
EQUIPMENT TYPE Air Handler
SHORT DESCRIPTION
Advantage 5th Gen 9k BTU 115V Air Handler
CFM 282.5 / 235.4 / 206.0 / 164.8 / 117.7
TONNAGE 0.75
VOLTAGE (V) 115
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 15
MIN CIRCUIT AMPACITY (A) 3
MOUNT TYPE Wall
COLOR White
DECIBEL RATING (DBA) 33.5
DECIBEL RATING LOW (DBA) 18
DECIBEL RATING HIGH (DBA) 43
NUMBER OF SPEEDS 5
MAX LINESET LENGTH (FT) 82
LIQUID LINE SIZE 1/4
SUCTION LINE SIZE 3/8
FILTER TYPE Reusable
OVERLOAD PROTECTION Yes
APP COMPATIBILITY Yes
WORKS WITH IOS Yes
WORKS WITH ANDROID Yes
REMOTE CONTROL INCLUDED Yes
UL LISTED Yes
CSA LISTED Yes
ETL LISTED Yes
AHRI CERTIFIED Yes
REGISTERED WARRANTY Extended Limited Lifetime*
BASE PARTS WARRANTY 1 Year
BASE COMPRESSOR WARRANTY 2 Years
HAS BATTERIES Yes
CONTAINS CHEMICALS Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 7.36
NET HEIGHT (IN) 11.42
NET WIDTH (IN) 28.43
NET WEIGHT (LBS) 17.42
GROSS DEPTH (IN) 10.63
GROSS HEIGHT (IN) 14.76
GROSS WIDTH (IN) 31.1
GROSS WEIGHT (LBS) 22.93

 

Customer Reviews

Based on 34 reviews
59%
(20)
29%
(10)
12%
(4)
0%
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T
T x N Y
Awesome product

Works way better than any ac unit I ever gotten. Easy to install. Quiet as heck! My electric bill didnt spike up the fan speed was fast yet quiet. The size is perfect and energy efficient! Very good quality.

J
JaxFL
Awesome a/c

Really love this unit. It heats and cools our small space here in Florida and keeps the electric bill down too. The app controls it when away or at home although quirky. The remote control is great. It was fairly easy to install and doesn't take up much space. Lots of YouTube videos show you how to do it.You have an inside, small hang on the wall unit, and a small outside unit. Very quiet. We don't even know if it's running or not until we walk up to it and feel if air is blowing or not. Really can't hear it run.No problems with it and I would buy it again.

S
Scott W.
Cooling Works Great!!!! - Heat just "OK"

Update 1/11/21:Changing rating to 4 stars from 5.Heating is not nearly as efficient as cooling. Here in the Autin area it sometimes drops to the 30s and rarely to the 20s.I've noticed that when the temp falls below 40F it struggles to maintain 68 degrees in the garage.The garage has insulated doors with heated rooms above and on two sides.Yesterday, I noticed it went into defrost at least three times.All-in-all I am still happy, but I had hoped the heating function would have been a little better.Update 10/14: This thing is still going strong. Has run almost every day since June.This thing is awesome!!! Why did I wait so long?Quite as a mouse. Colder than a few hearts I know.Why I chose the Advantage unit over the DIY - Simply because you can't trim the line-set on the DIY. I called MR. Cool and told them I couldn't live with a bunch of coiled AC lines laying on the ground. They suggested the Advantage series. As long as you are comfortable cutting copper line, flaring copper line, running a vacuum and looking at a gauge, then you are set. There are a million YouTube videos showing you how to do it. The unit came with 16 feet of line-set and I only used 50 inches of it.I bought all parts on Amazon except for the conduit, main breaker, and 10 gauge power cable to the disconnect. I also had to purchase a short piece of 3.5" PVC as the supplied sleave for the line-set was too short for my wall.Below are the extra items I purchased on Amazon:3.5" hole saw for brick - tip - rent a nice roto hammer if you need to go through brick and don't own one. - https://www.amazon.com/gp/product/B07ZSRTFJH/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1Power Whiphttps://www.amazon.com/gp/product/B0756N989G/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1Disconnect -https://www.amazon.com/gp/product/B000LF42NK/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1410a Valve Core removal tool - I did not like this tool. Poor quality but ended up workinghttps://www.amazon.com/gp/product/B07MCWMQ97/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1Line-set cover -https://www.amazon.com/gp/product/B07SPL5RZD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1Nylog -https://www.amazon.com/gp/product/B008HOSQQQ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1Wall Mount for outdoor unit -https://www.amazon.com/gp/product/B00LDU9R2I/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1Delivery - Why buy at a big box hardware store when Amazon delivers to your door?Came on a lift-gate truck and they delivered it inside the garage. They took it off the pallet and took the pallet with them (which I preferred). The driver was extremely polite.Communication - They (the transport company) kept calling the number on the order, which was not my number. It was an Amazon number in San Antonio. I contacted the seller prior so I had the shipper number. I called the transport company and made arrangements for delivery. I gave them my direct number. However, the driver still had only the Amazon number. Luckily, he called dispatch and they texted me that he was on the way. Could have had the unit on Friday, but got it Monday. Regardless, I was fine with that.Lesson learned - contact the seller and get the transport company contact info and call them.Installation instructions -The manuals are written by someone who speaks English as a secondary language. Spell and grammar check were definitely not used on the install manual. I bought the 24K unit, but the manual is the same for all of them. On page 12 (fig 4.3) there is an itsey-bitsey, teeny-tiny diagram which is needed to mount the indoor unit bracket and locate the center of the hole needed for the line-set. I went online and downloaded the manual in PDF, blew up the diagram and printed it out full page. Note - there is no template with the Advantage Series.The diagram indicates that the vertical center-line for the hole is 151 mm from the center of the right leg of the bracket. There are no reference marks on the bracket to measure from. HOWEVER!!, there is stamped into the metal instructions to measure 120 mm from bracket edge to locate the center-line. So that is what I did.I then went to check my work and measured 151 mm from the center-line I just drew back to the bracket. It came no where near the center of the bracket. So I called tech support for a warm-and-fuzzy. He said to measure about 5 or so inches from edge of bracket. Since the diagram requires you to calculate the outside edge of the unit and then measure from this imaginary line, I asked him about the horizontal center-line for the hole using the bracket as the reference point and he said about an inch up from the bottom of the bracket. Since the hole is 3.5" in diameter I already knew I needed to be 1.75" up from the bottom of the bracket. I politely said goodbye and figured it out on my own.I prefer to work in metric since it is so much easier, but here are the measurements I ended up using to lovcat...

P
Paul Ramone
Works Great

This item is NOT the Do-It-Yourself Model. Even though the guts are identical to the DIY, it takes more thought and effort to install. You need some special tools, like a vacuum pump, a good flare tool, tubing benders, and some beforehand practice with the flare tool to do it. If you take motors apart, build machinery from scratch, or are a plain dedicated do-yourselfer, you can do it. If you're not willing to invest the time studying up on it and practicing with the flare tool, you'd better forget it. Go with one of the DIY models.Mine works great. I have an 18,000 BTU model installed in a 700-square foot (insulated) garage.The temperature drop across it is about 38 degrees (if room air is 80F, output air will be about 42F). It has no problem at all cooling the place down quickly. It appears to be very smart, only putting out the temperature needed to maintain the setting. It may start out at 42, but after 20 minutes it might be doing 58. The fan is nearly silent.

G
Greg
I’d buy the MrCool 12k 240v again.

I bought this because of a suggestion from a builder I work with frequently. He knew I like to do things myself. After investigating I decided on the 12k 240 volt system. I installed indoor and outdoor unit. I attempted to make the connections but stopped when I started to remove the caps on the inside unit, it started hissing, which I wasn’t expecting. I have a HVAC guy I know personally and requested one of his guys visit to complete the installation. The technician mentioned the hissing was just nitrogen in the unit. He completed the typical servicing they would do on mini splits, pressure test and pulling vacuum. I’ve run the system for a month and have no complaints. It works great and it’s super quiet. The WiFi module paperwork wasn’t updated for this new model but I figured it out.