MRCOOL® DIY 5th Gen Multi-Zone 3-Zone 27,000 BTU 23 SEER2 (9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump

The MRCOOL® DIY 5th Gen Multi-Zone 3-Zone 27,000 BTU 23 SEER2 (9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump is the perfect solution for year-round comfort. Designed for easy do-it-yourself installation, this powerful system delivers reliable heating and cooling across three separate zones, each with its own temperature control.

With an energy efficiency rating of 23 SEER2, the MRCOOL® DIY 5th Gen Multi-Zone 27,000 BTU Ductless Mini-Split helps lower utility costs while maintaining comfort. Pre-charged R-454B Quick-Connect lines (linesets sold separately) make setup fast and eco-friendly—no special tools required.

Smart Wi-Fi integration allows you to control the MRCOOL® DIY 5th Gen Multi-Zone Mini-Split System from anywhere, with support for Alexa and Google Assistant. Backed by a 7-year compressor (Extended Limited Lifetime when registered) and 5-year parts warranty, this system combines convenience, efficiency, and peace of mind.

Features:

• Smartphone App: Control your MRCOOL® DIY® anywhere with your Apple or Android smart device and an internet connection.
• DIYPRO® Armored Cable: Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  
• DC inverter: DC inverters adjust compressor speed to meet cooling/heating demands, running at lower, efficient speeds for longer periods instead of frequent, energy-consuming on/off cycles. This can lead to significant savings on electricity bills.
• Louver Position Memory: The air handler's horizontal louver will automatically reset to the same position that was set the last time the unit was powered on.
• Quick Connect® - Just connect It’s that simple: The patented MRCOOL® DIY® Quick Connect® Line Set is 100% accurately pre-charged with R-454B refrigerant. Installation is quick and easy with no vacuum required and no specialized tools needed, just connect and go. The linesets are sold separately.
• Intertek-Tested & Certified: When it comes to easy installation and peace of mind, MRCOOL® stands alone as the ONLY company with patented pre-charged line set valves that have been tested and certified by Intertek. With the Intertek stamp of approval, homeowners and contractors alike can be sure that their pre-charged installation will be faster, safer, and fully compliant with industry standards.
  • Pre-Charged Valve Control Intertek Number: 5029931
    
  • Certified Under: UL STD 207 | CSA STD C22.2 # 140.3
    
• Mount Connect Enjoy: The MRCOOL® DIY® system features a simplified installation thanks to the patented Quick Connect® fittings that get you up and running in minutes. No waiting. No hassle. Just comfort, delivered fast.
• Gold Fin® Condenser - Corrosion Resistant: The Gold Fin® coil ensures that the DIY® condenser is engineered for resilience and built to withstand the test of time and the elements. From salty air to industrial zones, it resists long-term corrosion, so your comfort never fades.
• Coolant Alert - Leakage Detection: Your system knows before you do. If refrigerant levels drop, the MRCOOL® DIY will instantly alert you, protecting the compressor and preserving your comfort. Quietly brilliant, always vigilant.
• Any season, Any forecast: Engineered with intelligent climate control, the MRCOOL® DIY® automatically adjusts to maintain your perfect temperature, from freezing winters to scorching summers. It's not just comfort; it's climate mastery.
• Warmth even at -13°F: When temperatures get low, the MRCOOL® DIY® keeps you perfectly warm with a heating range of 62°F to 86°F. With reliable performance down to -13°F, you'll enjoy steady heat, smart control, and total comfort all winter long.
  
• Steady cooling, even at 122°F: When temperatures soar to 122°F, MRCOOL® DIY® stays chill - delivering unwavering cooling power where it's needed most all year long. From server rooms to sunrooms, it's dependable, intelligent, and always in control.
• Hands-free comfort, Activated: The MRCOOL® DIY® works with Amazon Alexa and Google Assistant, so you’re always in control without lifting a finger. Adjust the temperature, turn it on or off, or fine-tune your climate with nothing but your voice.
• Follow Me® Function - Comfort that knows where you are: MRCOOL® DIY® doesn't just cool the room - it cools your exact location. With Follow Me® mode, the system uses the remote as a sensor to track your exact location, adjusting airflow to keep you perfectly comfortable, wherever you go.
  
• Easy comfort that you can control from anywhere: Whether you're home, at work, or on the go, adjust your environment with a tap of your finger. Cool things down before you arrive, or change the temperature without leaving the couch using the MRCOOL SmartHVAC App available on IOS and Android (internet connection required).
  
• Auto restart: Outage? No need to worry. The MRCOOL® DIY® remembers your settings and powers back on automatically, so your comfort picks up right where it left off.
  
• Works with the MRCOOL® OuttaSight®: A discreet ceiling cassette that's the perfect fit for any room, the MRCOOL® OuttaSight® is a low-profile heating and cooling solution that doesn't require ductwork or take up wall space.
  
• Energy Efficient: The MRCOOL® DIY® minimizes energy waste, maximizing savings without sacrificing comfort. It's not just efficient, it's exceptionally efficient.
• Sleep mode: We made Sleep Mode easy to program. This saves you money and lets you and your family sleep a little easier.
• Best warranty in the business: The 5th Gen DIY® units offer a Registered Extended Limited Lifetime Warranty, 5 Years Base Parts Warranty, and a 7 Years Compressor Warranty, providing longer lasting protection for your system than any competing brand. - See full warranty details here
• Eligibility for IRA Tax Credit: Energy Star Certified, Energy Star Certified with Cold Climate Designation, and Potential Eligibility for IRA Tax Credit
  • AHRI Reference Number: #216032589
    • Non-Ducted Indoor Units Energy Guide
    • Non-Ducted Indoor Units AHRI Certificate
      

Included Outdoor Unit:

1x MRCOOL® 27,000 BTU DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v - DIY-MULTI4-27HP230D-O

If you’re in need of comfort, our new 5th Generation MRCOOL® DIY® 27k BTU Multi-Zone Ductless Mini Split Condenser is the perfect solution! The acronym in the name is true - you can install this system on your own, without the assistance of an HVAC professional! You’ll save money in more ways than one, too, due to the incredible efficiency of this system, which attains a SEER2 rating of 23 and a HSPF2-4 rating of 9.5. This condenser in particular is able to support up to 4 air handlers, meaning it can provide heat and air conditioning to four separate spaces equalling a total of 1,000 to 1,200 square feet. This system is unique because it utilizes special, patented Quick Connect® line sets that are pre-charged with R-454B, which is a newer refrigerant that allows the system to be even more sustainable and efficient than its previous generation. These line sets essentially link to the fittings of the condenser and the air handler, making the installation process a breeze. These line sets are sold separately. Once installed, this condenser will be able to do more than you expect! Our SmartHVAC app gives you the opportunity to integrate the system with your phone and Amazon Alexa or Google Home, which will let you control your comfort using just your voice. The app also gives you the ability to customize your comfort with a range of features, from setting schedules to monitoring the system’s energy use. You deserve to have your comfort meet your standards, and this unit can do that for you. Should something happen to the system, we’ve got your back. The DIY® series boasts one of the foremost warranties in the HVAC industry - a 5 year parts warranty, a 7 year compressor warranty, and a Limited Lifetime Replacement warranty if you enroll in the MRCOOL® Care Program. Get the best for your home and install a DIY®!

Features:

• Intertek listed 5031495
• Easy DIY installation
  
• Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  
• Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  
• The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

Warranty:

• Registered Warranty: Extended Limited Lifetime (See full warranty details here)
  
• Base Parts Warranty: 5 Years (See full warranty details here)
• Compressor Warranty: 7 Years (See full warranty details here)

 

 

Included Indoor Units:

1x MRCOOL® 9,000 BTU DIY 5th Generation Wall Mount Air Handler 230V - DIY-09-HP-WMAH-230D25-O

The MRCOOL® 9,000 BTU DIY 5th Generation Wall Mount Air Handler 230V is a highly efficient and powerful solution for heating and cooling areas up to 400 sq. ft. Designed specifically for easy DIY installation, this system removes the need for specialized tools or professional help, allowing for a quick, hassle-free, and budget-friendly setup. One of its most convenient features is the pre-charged QuickConnect® line sets, which comes filled with R-454B refrigerant. The line set is sold separately. This eliminates the need for vacuuming, reducing both installation time and labor costs. Additionally, the DIYPRO® cable replaces the need for electrical conduit, enhancing durability and protection against outdoor elements and wildlife. With multiple control options, adjusting your system is effortless. You can operate it using the wireless remote, the SmartHVAC app for Apple and Android devices, or voice commands via Amazon Alexa and Google Assistant. The Follow Me function enhances comfort by adjusting airflow based on the remote’s location, ensuring even temperature distribution. Dry Mode also helps regulate humidity, keeping indoor conditions comfortable. Built for long-term durability, the Gold Fin® Condenser offers superior corrosion resistance, making it ideal for coastal environments. Supported by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—this MRCOOL® DIY® system delivers reliable, year-round climate control with innovative features and easy installation.

Features:

• Intertek listed 5031495
  
• Easy DIY installation
  
• Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  
• Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  
• The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
  

Warranty:

• Registered Warranty: Extended Limited Lifetime (See full warranty details here)
  
• Base Parts Warranty: 5 Years (See full warranty details here)
• Compressor Warranty: 7 Years (See full warranty details here)

2x MRCOOL® 12,000 BTU DIY 5th Generation Wall Mount Air Handler 230V - DIY-12-HP-WMAH-230D25-O

The MRCOOL® 12,000 BTU DIY 5th Generation Wall Mount Air Handler is an efficient and versatile climate control solution for spaces up to 550 sq. ft. Designed with homeowners in mind, this system offers a true DIY installation process, eliminating the need for specialized tools or professional assistance. This makes setup quick, straightforward, and cost-effective. One of its standout features is the pre-charged 25-foot DIY® QuickConnect® line set, pre-filled with R-454B refrigerant. This line set is sold separately. This eliminates the need for vacuuming, significantly reducing installation time and expenses. The included DIYPRO® cable further streamlines installation by removing the need for electrical conduit while also offering enhanced durability and protection against the elements. Operating the system is simple and convenient, with multiple control options available. Adjust temperature settings with the wireless remote, the SmartHVAC app for iOS and Android devices, or hands-free voice commands via Amazon Alexa and Google Assistant. For personalized comfort, the Follow Me function ensures consistent temperature regulation by adjusting airflow based on the remote’s location, while Dry Mode helps control excess humidity. Built for longevity, the Gold Fin® Condenser provides superior corrosion resistance, making it ideal for coastal environments. Supported by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—this MRCOOL® DIY® system delivers reliable, year-round comfort with smart features and effortless installation.

Features:

• Intertek listed 5031495
  
• Easy DIY installation
  
• Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  
• Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  
• The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
  

Warranty:

• Registered Warranty: Extended Limited Lifetime (See full warranty details here)
  
• Base Parts Warranty: 5 Years (See full warranty details here)
• Compressor Warranty: 7 Years (See full warranty details here)

What's Included:

• 1x MRCOOL® 27,000 BTU DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v - DIY-MULTI4-27HP230D-O
• 1x MRCOOL® 9,000 BTU DIY 5th Generation Wall Mount Air Handlers 230V - DIY-09-HP-WMAH-230D25-O
  
• 2x MRCOOL® 12,000 BTU DIY 5th Generation Wall Mount Air Handler 230V - DIY-12-HP-WMAH-230D25-O

MRCOOL® 27,000 BTU DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v Specifications:

BRAND	MRCOOL
SERIES	DIY 5th gen Multi-Zone Mini-splits
MODEL	DIY-MULTI4-27HP230D-O
GTIN	00840255587457
UPC	840255587457
SHORT DESCRIPTION	MRCOOL® 27k DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v
SEER2	23
EER2	12
HSPF2-4	9.5
HSPF2-5	7
TONNAGE	2.25
COOLING CAPACITY (BTU)	26000
HEATING CAPACITY (BTU)	26000
VOLTAGE	208/230
PHASE	1
CYCLE	60 Hz
MAX FUSE BREAKER (A)	25
MIN CIRCUIT AMPACITY (A)	23
COLOR	White
ZONE CAPACITY	4
REFRIGERANT TYPE	R-454B
REFRIGERANT VOLUME (OZ)	84.66
DECIBEL RATING (DBA)	61
INVERTER	DC
LINE SET LENGTH	25
MAX LINESET LENGTH (FT)	221.4
LIQUID LINE SIZE	1/4
SUCTION LINE SIZE	3/8
COMPRESSOR MOTOR TYPE	Rotary
AUXILIARY HEATER INCLUDED	No
AUXILIARY HEATER AVAILABLE	No
FAN ONLY OPTION	Yes
QUITE MODE	Yes
AUTO COOL	Yes
WIFI COMPATIBILITY	Yes
APP COMPATIBILITY	Yes
WORKS WITH IOS	Yes
WORKS WITH ANDROID	Yes
UL LISTED	Yes
ETL LISTED	Yes
ENERGY STAR CERTIFIED	Yes
AHRI CERTIFIED	Yes
REGISTERED WARRANTY	Extended Limited Lifetime*
BASE PARTS WARRANTY	5-years
BASE COMPRESSOR WARRANTY	7-years
HAS BATTERIES	Yes
CONTAINS ELECTRONICS	Yes
CONTAINS CHEMICALS	Yes
CONTAINS AEROSOL	Yes
CONTAINS COMPRESSED GAS	Yes
PROPOSITION 65 WARNING	Yes
NET DEPTH (IN)	16.14
NET HEIGHT (IN)	31.89
NET WIDTH (IN)	37.24
NET WEIGHT (LBS)	140.21
GROSS DEPTH (IN)	19.69
GROSS HEIGHT (IN)	34.84
GROSS WIDTH (IN)	42.91
GROSS WEIGHT (LBS)	151.02
RESOURCES	MRCOOL® PRODUCT CATALOG MRCOOL® DIY MULTI ZONE BROCHURE MRCOOL® DIY MULTI ZONE CONDENSER/AIR HANDLER MATCHUP GUIDE INSTALL MANUAL REMOTE MANUAL WARRANTY DOC ACCESSORY MANUAL AHRI CERTS ENERGY GUIDE CERTS

MRCOOL® 9,000 BTU DIY 5th Generation Wall Mount Air Handler Specifications:

BRAND	MRCOOL®
SERIES	DIY 5th gen Multi-Zone Mini-splits
MODEL	DIY-09-HP-WMAH-230D25-O
GTIN	00840255587020
UPC	840255587020
SHORT DESCRIPTION	MRCOOL® 9k DIY 5th Generation Mini-Split Air Handler 230v
VOLTAGE	208/230
PHASE	1
CYCLE	60 Hz
MOUNT TYPE	Wall
COLOR	White
MAX COVERAGE AREA	400 sqft
OSCILLATION	Yes
FILTER TYPE	Reusable
AUXILIARY HEATER INCLUDED	No
AUXILIARY HEATER AVAILABLE	No
FAN ONLY OPTION	Yes
QUIET MODE	Yes
AUTO COOL	Yes
WIFI COMPATIBILITY	Yes
APP COMPATIBILITY	Yes
WORKS WITH IOS	Yes
WORKS WITH ANDROID	Yes
REMOTE CONTROL INCLUDED	Yes
UL LISTED	Yes
ETL LISTED	Yes
AHRI CERTIFIED	Yes
REGISTERED WARRANTY	Extended Limited Lifetime*
BASE PARTS WARRANTY	5 years
BASE COMPRESSOR WARRANTY	7 years
HAS BATTERIES	Yes
CONTAINS ELECTRONICS	Yes
CONTAINS CHEMICALS	Yes
CONTAINS AEROSOL	Yes
CONTAINS COMPRESSED GAS	Yes
PROPOSITION 65 WARNING	Yes
NET DEPTH	7.44 in
NET HEIGHT	11.69 in
NET WIDTH	31.57 in
NET WEIGHT	24.47 lbs
GROSS DEPTH	16.34 in
GROSS HEIGHT	14.37 in
GROSS WIDTH	36.02 in
GROSS WEIGHT	35.05 lbs
RESOURCES	MRCOOL® PRODUCT CATALOG MRCOOL® DIY MULTI ZONE BROCHURE MRCOOL® DIY MULTI ZONE CONDENSER/AIR HANDLER MATCHUP GUIDE INSTALL MANUAL REMOTE MANUAL WARRANTY DOC ACCESSORY MANUAL

 

MRCOOL® 12,000 BTU DIY 5th Generation Wall Mount Air Handler 230V Specifications:

BRAND	MRCOOL®
SERIES	DIY 5th gen Multi-Zone Mini-splits
MODEL	DIY-12-HP-WMAH-230D25-O
GTIN	00840255587037
UPC	840255587037
SHORT DESCRIPTION	MRCOOL® 12k DIY 5th Generation Mini-Split Air Handler 230v
VOLTAGE	208/230
PHASE	1
CYCLE	60 Hz
MOUNT TYPE	Wall
COLOR	White
MAX COVERAGE AREA	550 sqft
OSCILLATION	Yes
FILTER TYPE	Reusable
AUXILIARY HEATER INCLUDED	No
AUXILIARY HEATER AVAILABLE	No
FAN ONLY OPTION	Yes
QUIET MODE	Yes
AUTO COOL	Yes
WIFI COMPATIBILITY	Yes
APP COMPATIBILITY	Yes
WORKS WITH IOS	Yes
WORKS WITH ANDROID	Yes
REMOTE CONTROL INCLUDED	Yes
UL LISTED	Yes
ETL LISTED	Yes
AHRI CERTIFIED	Yes
REGISTERED WARRANTY	Extended Limited Lifetime*
BASE PARTS WARRANTY	5 years
BASE COMPRESSOR WARRANTY	7 years
HAS BATTERIES	Yes
CONTAINS ELECTRONICS	Yes
CONTAINS CHEMICALS	Yes
CONTAINS AEROSOL	Yes
CONTAINS COMPRESSED GAS	Yes
PROPOSITION 65 WARNING	Yes
NET DEPTH	7.44 in
NET HEIGHT	11.63 in
NET WIDTH	31.57 in
NET WEIGHT	24.47 lbs
GROSS DEPTH	16.34 in
GROSS HEIGHT	14.37 in
GROSS WIDTH	36.02 in
GROSS WEIGHT	35.05 lbs
RESOURCES	MRCOOL® PRODUCT CATALOG MRCOOL® DIY MULTI ZONE BROCHURE MRCOOL® DIY MULTI ZONE CONDENSER/AIR HANDLER MATCHUP GUIDE INSTALL MANUAL REMOTE MANUAL WARRANTY DOC ACCESSORY MANUAL