0% Financing for 12 Months* or up to 48 Months* Terms Available - Buy Now and Pay later!

MRCOOL 27,000 BTU DIY 5th Gen 23 SEER2 2 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 18 + 18

SAVE $396.20

Required Fields *

Customer reviews
Rating:
5 out of 5
In Stock - 13 Ready to Ship
Free Shipping
By

MRCOOL

In stock

Model

DIY-MULTI4-27HP230D / DIY-18-WM-2

ID

210983

Was $4,358.20
Your Low Price $3,962.00
 
Product Features
  • Sized At 27,000 BTU For 1000 Sq Ft
  • Comfort Coverage Up To 1000 Sq Ft
  • Efficient Comfort Rated 23 SEER2
  • Adjust Temperature From Anywhere (WiFi)
  • Designed For Flexible Installation
  • High-Ambient Cooling Up To 122°F
Customize MRCOOL 27,000 BTU DIY 5th Gen 23 SEER2 2 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 18 + 18
27,000 BTU MRCOOL 4 Zone Condenser - R454B
27,000 BTU MRCOOL 4 Zone Condenser - R454B   + $2,100.00
18,000 BTU MRCOOL DIY 5th Gen Wall Mount Air Handler - R454B
18,000 BTU MRCOOL DIY 5th Gen Wall Mount Air Handler - R454B   + $931.00
18,000 BTU MRCOOL DIY 5th Gen Wall Mount Air Handler - R454B
18,000 BTU MRCOOL DIY 5th Gen Wall Mount Air Handler - R454B   + $931.00
16ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B
16ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B
17" Wall Mount Bracket for Mini Split Systems
Installation Kit for Condensers
27,000 MRCOOL 5th Gen DIY 23 SEER2 2 Zone Wall Mounted Mini Split Heat Pump System - R-454B | 18 + 18 DIY-MULTI4-27HP230D / DIY-18-WM-2

$3,962.00

27,000 BTU MRCOOL 5th Gen DIY 23 SEER2 2 Zone Wall Mounted Mini Split Heat Pump System – R-454B | 18 + 18

The MRCOOL 5th Gen DIY 27,000 BTU 2 Zone Mini Split Heat Pump System delivers robust, energy-efficient heating and cooling for two large areas. This system includes two 18,000 BTU wall-mounted indoor units, paired with a powerful 27,000 BTU outdoor condenser using eco-friendly R-454B refrigerant. Perfect for open-concept living spaces, large bedrooms, or connected zones, it offers advanced performance, smart technology, and easy do-it-yourself installation.

Key Features

  • Dual 18,000 BTU Indoor Units: Designed to efficiently cool or heat two large zones independently for ultimate comfort and control.
  • High 23 SEER2 Efficiency: Provides excellent energy savings while maintaining consistent performance across seasons.
  • Eco-Friendly Refrigerant: Uses R-454B refrigerant, a lower GWP alternative that meets modern environmental standards.
  • Smart Controls: Supports the MRCOOL SmartHVAC app, Amazon Alexa, and Google Assistant for remote and voice-activated climate management.
  • Quiet Operation: Both indoor and outdoor units are designed for quiet performance, making the system ideal for noise-sensitive environments.
  • Follow Me® Function: The remote senses temperature at its location, ensuring personalized comfort where you are in the room.

Benefits

  • Powerful Zoned Comfort: Two high-capacity indoor units provide independent climate control for larger spaces like master suites, great rooms, or open-plan layouts.
  • Cost-Efficient Setup: Avoid expensive installation fees thanks to the system’s true DIY-friendly design.
  • All-Season Capability: Effectively cools in outdoor temperatures down to 5°F and heats in conditions as low as -13°F.
  • Corrosion-Resistant Protection: Outdoor unit is coated with Gold Fin to enhance durability in harsh or coastal environments.
  • Reliable Warranty: Backed by strong manufacturer coverage for added peace of mind and long-term value.

The MRCOOL DIY 5th Gen 27,000 BTU 2 Zone System (18 + 18) is a perfect solution for homeowners needing serious climate control in two large zones. With high efficiency, smart features, and a hassle-free installation process, this system combines power, performance, and convenience for modern living. These bundles require the purchase of a Pre-Charged Line Set, these are not included.

18,000 BTU MRCOOL DIY 5th Gen Wall Mount Air Handler - R454B

MRCOOL 18k DIY 5th Generation Mini-Split Air Handler 230V

The MRCOOL DIY 18k BTU 5th Generation Air Handler is part of an advanced ductless mini-split system that delivers powerful and energy-efficient climate control for any space. Designed for easy installation by homeowners, this unit combines performance, convenience, and smart features to redefine home comfort.

This 230V air handler is compatible with MRCOOL DIY Quick Connect line sets, allowing for fast, tool-free installation without the need for specialized HVAC skills or certifications. With its sleek, modern design and enhanced technology, it’s ideal for spaces up to 750 square feet.

Key Features

  • DIY Quick Connect Installation
  • 18,000 BTU Capacity: Effectively heats and cools medium to large rooms with consistent comfort and efficiency.
  • Smart HVAC Features: Includes compatibility with the MRCOOL SmartHVAC app, Amazon Alexa, and Google Assistant for convenient voice or app control.
  • Auto Restart & Leakage Detection: Automatically restarts after power outages and alerts for refrigerant leaks to protect your system.
  • Low Ambient Cooling: Operates efficiently in cooling mode down to 5°F outdoor temperatures, making it suitable year-round.
  • Quiet Operation: Minimizes indoor noise levels for a more comfortable and peaceful environment.
  • Sleep Mode & Timer Function: Improves nighttime comfort and allows programmable operation tailored to your schedule.

Technical Highlights

  • Model: DIY-18-HP-WMAH-230D25-O
  • Power Supply: 208/230V, 60Hz, 1 Phase
  • Air Flow (H/M/L): 706/618/530 CFM
  • Sound Levels (H/M/L): 47/43/38 dB(A)
  • Mounting Type: Wall Mounted
  • Coverage Area: Up to 750 sq. ft.

With the MRCOOL DIY 5th Gen 18k Air Handler, homeowners can enjoy professional-grade performance and high-efficiency comfort without the cost and complexity of traditional installation. This unit is an ideal upgrade for those looking to enhance their space with reliable, smart, and user-friendly climate control.

27,000 BTU MRCOOL 4 Zone Condenser - R454B

MRCOOL 27k DIY 5th Generation 4 Zone Multi-Zone Mini-Split Condenser 230v

The MRCOOL® DIY-MULTI4-27HP230D-O is a high-efficiency 5th Generation Multi-Zone Mini-Split Condenser that empowers homeowners to install a powerful ductless HVAC system without professional assistance. Designed for use with MRCOOL DIY indoor air handlers, this 27,000 BTU multi-zone condenser supports up to four zones for customizable comfort throughout the home.

Key Features

  • Multi-Zone Flexibility: Supports up to four indoor air handlers of varying BTU capacities, allowing tailored climate control in each zone.
  • Energy Efficiency: High SEER2 and HSPF2 ratings ensure optimal performance while keeping utility bills low.
  • Smart Home Integration: Wi-Fi compatibility allows control via the SmartHVAC app, Amazon Alexa, or Google Assistant.
  • Durable and Weather-Resistant: Engineered with Gold Fin corrosion-resistant coatings and designed to withstand a wide range of ambient temperatures.

Performance Specifications

  • Model: DIY-MULTI4-27HP230D-O
  • Power Supply: 208/230V, 60Hz, 1Ph
  • Cooling Capacity: 27,000 BTU
  • Heating Capacity: 28,000 BTU
  • SEER2: Up to 23
  • HSPF2: Up to 8.8

Additional Features

  • Auto Restart: Automatically resumes operation after power outage
  • Quiet Operation: Operates at low decibel levels for noise-sensitive environments
  • Low Ambient Cooling: Operates in outdoor temperatures as low as 5°F for cooling and -13°F for heating
  • Multiple Fan Speeds: Customizable airflow for maximum comfort

The MRCOOL 27k DIY 5th Generation Multi-Zone Condenser offers unmatched ease of installation and energy-saving technology. Whether retrofitting an existing system or building new, it delivers outstanding performance, smart convenience, and personalized comfort throughout your home.

17" Wall Mount Bracket for Mini Split Systems

This wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 17” long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.

Features:
  • 17” Arm Length
  • Weight capacity of 220 lbs per arm
  • Bolts and anti-vibration washers included

No Return Policy

All sales of this product are final and are non-refundable.

Installation Kit for Condensers

Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.

What’s Included:

  • 3/4" x 6' Electrical Whip – SKU: 84138
  • 60A Non-Fused Disconnect – SKU: 83335
  • Surge Protector – SKU: ICM517
  • CPS Charging Adapter – SKU: 87-AD87
  • Telescoping Wall Sleeve – SKU: NFP-75

Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!

16ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B

DIY16-1412-O 16ft 1/4 x 1/2 Lineset for DIY 18K Indoor - R454B

The MRCOOL DIY16-1412-O is a 16-foot pre-charged lineset designed for MRCOOL® DIY 18K indoor units using R-454B refrigerant. This lineset offers an easy-to-install, reliable solution that eliminates the need for vacuum pumps or refrigerant charging.

Featuring Quick Connect fittings, it allows for quick, tool-free connections between indoor and outdoor units. The durable insulation and corrosion-resistant copper tubing provide excellent thermal performance and long-lasting durability.

Key Features:

  • Length: 16 feet of pre-charged copper tubing
  • Line Sizes: 1/4 inch liquid line and 1/2 inch suction line
  • Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
  • Compatibility: Compatible with MRCOOL DIY 18K indoor units
  • Connection Type: Quick Connect fittings for tool-free installation
  • Insulation: High-quality insulation to prevent condensation and improve energy efficiency
  • Durability: Built with corrosion-resistant materials for extended service life

This lineset is an ideal choice for extending or replacing refrigerant lines in MRCOOL® DIY mini-split systems, providing an efficient and hassle-free installation.

25ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B

DIY25-1412-O 25ft 1/4 x 1/2 Lineset for DIY 18K Indoor - R454B

The MRCOOL® DIY25-1412-O is a 25-foot pre-charged lineset designed for MRCOOL DIY 18K indoor units using R-454B refrigerant. This lineset offers a convenient and reliable solution that eliminates the need for vacuum pumps or refrigerant charging during installation.

Featuring Quick Connect fittings, it enables quick, tool-free connections between indoor and outdoor units. The durable insulation and corrosion-resistant copper tubing ensure optimal thermal efficiency and long-lasting performance.

Key Features:

  • Length: 25 feet of pre-charged copper tubing
  • Line Sizes: 1/4 inch liquid line and 1/2 inch suction line
  • Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
  • Compatibility: Compatible with MRCOOL DIY 18K indoor units
  • Connection Type: Quick Connect fittings for easy installation
  • Insulation: High-quality insulation to prevent condensation and improve energy efficiency
  • Durability: Built with corrosion-resistant materials for extended lifespan

This lineset is an excellent choice for extending or replacing refrigerant lines in MRCOOL® DIY mini-split systems, providing hassle-free installation and dependable operation.

More Information
MRCOOL 18,000 BTU DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
FeatureSpec
SKUDIY-18-HP-WMAH-230D25-O
Weight (in lbs)35.49
Brand/ManufacturerMRCOOL
ReplacesDIY-18-HP-WMAH-230C25
UPC810063868512
ControllerIncluded
Cooling BTU18,000 BTU
Heating BTU18,000 BTU
Maximum CFM706 Turbo / 618 Hi / 530 Med / 430 Lo CFM (Airflow)
Decibel Level (dBA)19.0 - 54.5 dBA
RefrigerantR454B
Liquid Line1/4"
Suction Line1/2"
Electrical208/230V | 1 Phase | 60Hz
BTU/Tonnage18,000 BTU/1.5 Ton
Mini Split TypeWall Mounted
Zone CompatibilitySingle Zone
Height13.19"
Width42.52"
Depth8.9"
Warranty7 Year Compressor / 5 Years Parts Warranty with Online Registration
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
MRCOOL 18,000 BTU DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
FeatureSpec
SKUDIY-18-HP-WMAH-230D25-O
Weight (in lbs)35.49
Brand/ManufacturerMRCOOL
ReplacesDIY-18-HP-WMAH-230C25
UPC810063868512
ControllerIncluded
Cooling BTU18,000 BTU
Heating BTU18,000 BTU
Maximum CFM706 Turbo / 618 Hi / 530 Med / 430 Lo CFM (Airflow)
Decibel Level (dBA)19.0 - 54.5 dBA
RefrigerantR454B
Liquid Line1/4"
Suction Line1/2"
Electrical208/230V | 1 Phase | 60Hz
BTU/Tonnage18,000 BTU/1.5 Ton
Mini Split TypeWall Mounted
Zone CompatibilitySingle Zone
Height13.19"
Width42.52"
Depth8.9"
Warranty7 Year Compressor / 5 Years Parts Warranty with Online Registration
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
MRCOOL 27,000 BTU DIY 5th Generation 4 Zone Multi-Zone Mini Split Condenser - R454B | 230V
FeatureSpec
SKUDIY-MULTI4-27HP230D-O
Refrigerant Charge3.86 lbs (Pre-Charged for 25ft Line Set)
Weight (in lbs)140.21
AHRI Certificate Number216032589
Brand/ManufacturerMRCOOL
UPC840255587457
Cooling BTU26,000 BTU
Heating BTU26,000 BTU
Decibel Level (dBA)61 dBA
Energy StarYes
RefrigerantR454B
HSPF29.5
SEER2 (Efficiency)23
EER212
Liquid Line1/4"
Suction Line3/8"
Electrical208/230V | 1 Phase | 60Hz
Max Breaker Size25 Amps
Min. Breaker Size23 Amps
BTU/Tonnage27,000 BTU/2.25 Ton
Min/Max Outdoor Temp for Heating-13°F - 75°F
Min/Max Outdoor Temp for Cooling-13°F - 122°F
Zone CompatibilityMulti Zone
Height31.89"
Width37.24"
Depth16.14"
Warranty7 Year Compressor / 5 Years Parts Warranty with Online Registration
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
16ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B
FeatureSpec
SKUDIY16-1412-O
Weight (in lbs)8.8
Brand/ManufacturerMRCOOL
UPC605468375099
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 1/2
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
25ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B
FeatureSpec
SKUDIY25-1412-O
Weight (in lbs)12.1
Brand/ManufacturerMRCOOL
UPC605468070710
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 1/2
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
16ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B
FeatureSpec
SKUDIY16-1412-O
Weight (in lbs)8.8
Brand/ManufacturerMRCOOL
UPC605468375099
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 1/2
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
25ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454B
FeatureSpec
SKUDIY25-1412-O
Weight (in lbs)12.1
Brand/ManufacturerMRCOOL
UPC605468070710
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 1/2
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
17" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKUHW-600
Weight (in lbs)9.2
Brand/ManufacturerOnline Supply
Length17"
Height20"
Width6"
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Installation Kit for Condensers - Accessory Set
FeatureSpec
SKUMSK001
Weight (in lbs)15
Brand/ManufacturerOnline Supply
UPCna
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Top reviews
  1. Great product, install level medium.
    Quality
    100%
    Service
    100%
    Price
    100%
    Installed a 2 zone system in my beach cottage and it was fairly straight forward install, definitely took longer than I expected but taking the extra time to double and triple check measurements and location of the units was well worth it. The equipment itself is well made and I really like the design except for one thing. The USB port access for the smart HVAC dongle has a very stubborn cover that is difficult to remove without cracking the plastic lock tab. I broke it on one and got lucky with the second one. This could definitely be made a little bit better. It didn’t affect the function of it and I was able to close it back up ok, but hated that I cracked off a piece of a brand new machine. I have been able to test both the heat and AC function and so far so good. Love that I can control it from the app when I’m not at the house since I live 2 hours away. Overall a great product and price and HVAC direct was very easy to deal with and answered quickly when I had questions about separate shipping of some of the components. Thanks!

    Review by

    Posted on

Customer Questions
No Questions
Did you find what you were looking for?
Why Choose MRCOOL?
Why Choose MRCOOL?

MRCOOL mini split systems combine innovative design with advanced manufacturing to deliver efficient, reliable comfort wherever you need it. Built with cutting-edge technology, these systems ensure optimal performance and flexibility for any space.

blockboard tech