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Advantage 4th Gen 9K BTU 0.75-Ton 1-Zone 20.5 SEER Ductless Mini-Split AC Heat Pump, 9K and 16 ft. Line-Mini Stat 115V
  • Model A-09-HP-115C-MS
  • Internet #327262494
  • Store SO SKU #1010746489
Advantage 4th Gen 9K BTU 0.75-Ton 1-Zone 20.5 SEER Ductless Mini-Split AC Heat Pump, 9K and 16 ft. Line-Mini Stat 115V
Discontinued Model:

Advantage 3rd Gen 12,000 BTU 1 Ton Ductless Mini Split Air Conditioner and Heat Pump with Mini Stat 115V/60Hz

  • High efficiency ductless mini split system: 19 SEER
  • Non-charged flared line set designed for HVAC professionals
  • 1-year Compressor warranty/2-year parts warranty
  • View More Details
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy

Product Details

About This Product

This system is meant to be installed by a HVAC technician. The newly designed 3rd generation Advantage Series, with improved efficiency ratings up to 19 SEER, delivers high performance comfort from the moment its activated. And its competitive price makes it a consumer favorite that's tough to beat. The MRCOOL Advantage condenser and wall mounted air handler is an ideal combination of superior product quality, energy efficiency, quiet operation and financial value. The condenser incorporates a high performance compressor with eco-friendly, chlorine-free R-410A refrigerant. The MRCOOL Advantage is the clear choice for consumers who want to combine superior interior comfort with environmentally friendly technology. The MRCOOL Advantage now includes the new SmartHVAC Wi-Fi control module that features an easier setup process, improved functionality and works with Amazon Alexa and Google Assistant.


  • Installation kit included
  • Gold fin condenser: corrosion resistant - live on the coast don't worry, our condenser is built to resist long term corrosion
  • New 3rd generation advantage systems include our SmartHVAC Wi-Fi control module with improved setup and enhanced functionality for Apple and android smart devices, works with Amazon Alexa, works with Google Assistant
  • Installation by a licensed professional required where applicable
  • R-410A environmentally friendly refrigerant
  • Sleep mode, louver position memory and auto restart functions
  • Convenient for installation and maintenance, compact design of outdoor unit, totally enclosed, permanently lubricated condenser fan motor
  • MTSK01 mini-stat included
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 313440642

Model # A-12-HP-115B-MS



Air handler depth (in.)


Air handler height (in.)


Air handler width (in.)


Condenser depth (in.)


Condenser height (in.)


Condenser width (in.)



Air direction/circulation


Air handler weight (lb.)


Amperage (A)


BTU Cooling Rating

12000 BTU

BTU Heat Rating

12000 BTU

Color Family




Condenser weight (lb.)


Coverage Area (sq. ft.)


Decibel (Sound) Rating

40 dBA

Decibel Rating

40 dBA

Filter Type



Remote Control, Self-diagnostic tools

Line Set Length (Ft.)

16 ft

Mini Split Features

Auto cool, Defrost, Fan only option, Mobile App, Overload protection, Wifi

Minimum Outdoor Temperature (F)

5 F

Mount Location

Wall Mount

Number of cool settings


Number of Fan Speeds


Number of Tons

1 ton

Pack Size




Voltage (v)


Wattage (watts)


Works With

Alexa, Google Assistant

Zone Capacity

1 Zone

Warranty / Certifications

Certifications and Listings

AHRI Certified, CSA Listed, ETL Listed, UL Listed

Manufacturer Warranty

1-Year Compressor, 2-Year Parts and 1-Year Remote Warranty when registered and when installed by a licensed professional

Seasonal Energy Efficiency Ratio (SEER)


Questions & Answers

Q:What is the HSPF2 rating for this Unit?
by|Jun 5, 2024
1 Answer
Answer This Question

A:  The HSPF2-4 rating is 9.0 and the HSPF2-5 is 6.9.

by|Jun 6, 2024
    Q:Can it be installed at floor level or slightly Higher without loss of much efficiency Thanks
    by|May 12, 2024
    1 Answer
    Answer This Question

    A:  Please reach out to us directly at support@mrcool.com or 270-366-0457 for assistance with this.

    by|May 13, 2024
      Q:What size area does this cool and heat
      by|Apr 19, 2024
      1 Answer
      Answer This Question

      A:  A 12k BTU system is made to heat and cool up to 500 sq. ft. However, there is more criteria than square footage when it comes to properly sizing a system. It is best to get a manual j calculation or to go online and use an HVAC load calculator.

      by|Apr 22, 2024
        Q:I intend to use this in an office that will reside in the top level of a barn. Am I able to mount the blower unit on a wall that is on a 60 degree angle without impeding the performance or reliability?
        by|Apr 17, 2024
        1 Answer
        Answer This Question

        A:  Unfortunately, the air handler will need to be installed on a flat surface to drain properly.

        by|Apr 17, 2024
          Showing 1-4 of 88

          Customer Reviews

          3.8 out of 5

          • 3.8 out of 57 reviews
          • 53% recommend this product
          Filter by:
          Showing 1-10 of 57 reviews
          Ad very misleading! This specific product is designed to be sold to contractors not a home owner! Does not include coolant. Once installed and operational it is awesome in a detached uninsulated garage for two Collies’s and a golden retriever! One electrical cover was cracked out of the box!
          Response from MR COOL TeamMay 16, 2024
          We are glad you are enjoying the equipment. We do apologize for the inconvenience you have dealt with. If you are needing any assistance, please reach out to us at 270-366-0457 or support@mrcool.com. mrcool
          • Verified Purchase
          The condenser was all dented up right out of the box
            • Recommended
            DIY Mr Cool
            Easy to install, works great and it's going to save a lot of money in cooling our home.
            • Verified Purchase
            • Recommended
            1 found this review helpful
            3 years- unusable and already out of warranty
            Had this installed by a technician in 2020. Stopped working in Dec 2023. Just got the diagnosis: failed compressor, inverter board and contaminated lines. Need a total replacement. Contacted manufacturer (Mr.Cool). Sorry, out of Warranty. Out of luck. Out of purchasing Mr. Cool. There are many other choices out there. If these truly last just a few years, not going to pay a premium price.
            Response from MR COOL TeamMar 19, 2024
            We do apologize for the inconvenience, you can email me directly at csmanager@mrcool.com. mrcool
              2 found this review helpful
              THIS IS NOT A DIY UNIT
              The entire reason I purchased this unit is because it is common knowledge that MrCool Mini split units come with pre-charged line sets and do not require pulling a vacuum. I should have checked the reviews, so that's on me. But MrCool absolutely knows what they are doing here. The should have "NOT DIY" in bold and on the main pictures and title of this posting. This is basically a scam with how much MrCool advertises their products as DIY. I could have saved 40% if I went with an honest brand.
              Response from MR COOL TeamMar 5, 2024
              Our DIY install mini splits include the DIY Series and the Easy Pro Series. Our technician install mini splits include the Advantage Series and the Olympus Series. We do apologize for the inconvenience. If we can assist you with anything, please email us directly at support@mrcool.com. mrcool
                • Verified Purchase
                Never works as promised
                Contractor not an HVAC installed during remodeling. Summertime leaks water everywhere despite following all online DIY resolution options. No HVAC person is going to touch it as it was a DIY remotes. Seldomly work never according to instructions and never according to settings. These things seem to have a mind like a spoiled child on its own
                Response from MR COOL TeamDec 11, 2023
                We do apologize for the issues you are having. Please email us directly at support@mrcool.com. mrcool
                  2 found this review helpful
                  missing pieces no reply from mrcool
                  Response from MR COOL TeamDec 7, 2023
                  We do apologize for the inconvenience. Please email me directly at csmanager@mrcool.com. mrcool
                  • Verified Purchase
                  This product was excellent, very quiet and am easy to install. Cooled a very large room immediately.
                  • Verified Purchase
                  • Verified Purchase
                  Showing 1-10 of 57 reviews