MRCOOL DIY 5th Gen 48,000 BTU 6-Zone Ductless Mini Split Air Conditioner and Heat Pump with 6K+6K+9K+9K+9K+9K BTU Wall Mount Indoor Units

MRCOOL DIY 5th Gen 48,000 BTU 6-Zone Ductless Mini Split Air Conditioner and Heat Pump with 6K+6K+9K+9K+9K+9K BTU Wall Mount Indoor Units

SKU: DIYM648HPW09D00

Sale price$7,632.00 Regular price$9,899.00
Save 23%


Line Set Length: 16 Ft. + 16 Ft. + 16 Ft. + 16 Ft. + 16 Ft. + 16 Ft.
Air Handler Type: Wall

In Stock Estimated delivery: Feb 23rd-4th
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Package Overview

The MRCOOL® DIY® 48,000 BTU Multi-Zone Ductless Mini Split System delivers efficient, energy‑saving heating and cooling for up to 2000 sq. ft., using six indoor air handlers to provide independent comfort throughout multiple rooms. Ideal for larger homes, additions, or multi‑room layouts, this system allows precise temperature control in each space while operating from a single outdoor condenser. Designed for true DIY installation, it features pre‑charged Quick Connect® line sets and includes a remote for simple, flexible control.

Built for long‑term performance and everyday convenience, the system uses eco‑friendly R‑454B refrigerant and supports smart app and voice control for effortless comfort management. Quiet operation, advanced comfort features, and strong warranty coverage make this system a dependable, scalable solution for whole‑home climate control.

  • 48,000 BTU outdoor condenser with six indoor air handlers
  • Recommended coverage: up to 2000 sq. ft. total
  • Multi‑zone system with independent room temperature control
  • DIY installation with pre‑charged Quick Connect® line sets
  • Smart Wi‑Fi control via MRCOOL® SmartHVAC app
  • Voice control compatible with Amazon Alexa & Google Assistant
  • Quiet operation for everyday comfort
  • Remote control included
  • Strong warranty coverage for long‑term peace of mind

Package Includes:

Description
Product Specs
Manuals & Guides

We’re excited to introduce our new 5th Generation MRCOOL® DIY® 48k BTU Multi-Zone Ductless Mini-Split Condenser, because it’s better than its predecessor in nearly every way. You won’t need the services of an HVAC professional when you’re setting this unit up, because you can do it yourself, which saves lots of time and money! This condenser enables you to heat and cool up to 6 separate spaces equalling up to 2,000 sq. ft., meaning you’d be able to cover an entire home in the completely efficient comfort of a single DIY® system.

You can install this system on your own because our innovative, patented pre-charged Quick Connect® line sets allow you to skip the lengthy and complicated process of evacuating and charging the system. These line sets are filled with R-454B refrigerant, a much more ecological and proficient upgrade from the previous refrigerant used in the last generation. This switch helps the system achieve impressive efficiency levels, like 21.8 SEER2 and an HSPF2-4 of 10. Once you install your system, you’ll be able to explore the variety of ways you can customize your comfort. For ultimate control, you can integrate system operations with the SmartHVAC app, available for Apple and Android phones, allowing you the ability to set schedules, manage modes of operation, monitor your systems all with the touch of a button.

The app even enables you to set up integration with Amazon Alexa and Google Home, meaning you won’t have to move a finger to make your home more comfortable than ever. We pride ourselves on having one of the best warranties in the industry on this unit! Once you install your condenser, you’re entitled to a 5 year parts warranty, a 7 year compressor warranty, and, if you subscribe to the MRCOOL® Care Program, a Limited Lifetime Replacement warranty. The MRCOOL® DIY® is the right choice if you want fast, efficient comfort that won’t let you down!

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.
Dimensions 16.34" D x 52.48" H x 37.48" W

SEER2

21.8

EER2

12

HSPF2-4

10

HSPF2-5

7.8

Tonnage

4

Cooling Capacity (BTU)

43000

Heating Capacity (BTU)

48000

Voltage (V)

208/230

Phase

1

Cycle

60

Max Fuse Breaker (A)

45

Min Circuit Ampacity (A)

40

Color

White

Zone Capacity

6

Refrigerant Type

R-454B

Refrigerant Volume (OZ)

148.15

Decibel Rating (DBA)

64

Inverter

DC

Line Set Length

25

Max Lineset Length (FT)

221.4

Liquid LIne Size

1/4

Suctio Line Size

(3/8 X4) (1/2 X2)

Compressor Motor Type

Rotary

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

UL Listed

Yes

ETL Listed

Yes

Energy Star Certified

Yes

AHRI Certified

Yes

Registered Warranty

Extended Limited Lifetime*

Base Parts Warranty

5

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contans Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Description
Product Specs
Manuals & Guides

Check out the new 5th Generation MRCOOL® DIY® 6K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler! Designed for an easy and hassle-free installation, this system requires no special tools or prior experience and effectively heats or cools spaces up to 200 sq. ft. The pre-charged 25-foot DIY® QuickConnect® line set, which is pre-charged with R-454B refrigerant, eliminates the need for vacuuming, making installation faster, easier, and more cost-effective.

The included DIYPRO® cable removes the need for electrical conduit, offering added durability against the outdoor elements and wildlife. Control is effortless with multiple options, including the wireless remote, the SmartHVAC app for Apple and Android devices, and hands-free voice commands via Amazon Alexa and Google Assistant. The Gold Fin® Condenser provides superior corrosion resistance for coastal homes, ensuring long-lasting performance in harsh conditions. Designed for both comfort and efficiency, the system's wireless remote features the innovative Follow Me function, which allows the air handler to adjust airflow temperature based on the remote's location, maintaining consistent comfort throughout the room. 

Additionally, Dry Mode helps reduce humidity by acting as a dehumidifier, removing excess condensation. Backed by an industry-leading warranty—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—the 5th Generation MRCOOL® DIY® 6K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler is built for lasting reliability. Enjoy advanced technology, simple installation, and year-round comfort with confidence.

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.
Dimensions 7.44" D x 11.69" H x 31.57" W

Voltage (V)

208/230

Phase

1

Cycle

60

Mount Type

Wall

Color

White

Max Coverage Area

200 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

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® 9K BTU 22.5 SEER Ductless Mini-Split Heat Pump 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 25-foot DIY® QuickConnect® line set, which comes filled with R-454B refrigerant. 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.
Dimensions 7.44" D x 11.69" H x 31.57" W

Voltage (V)

208/230

Phase

1

Cycle

60

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

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Description
Product Specs
Manuals & Guides

The MRCOOL 5th Gen DIY Line Set is a required component for installing your MRCOOL DIY ductless mini-split system. This 16-foot model is pre-charged with environmentally friendly R-454B refrigerant and works with MRCOOL's DIY 5th Gen 6K, 9K and 12K air handler units, featuring 1/4” liquid and 3/8” suction lines.

Equipped with Quick Connect fittings, the line set allows for fast, tool-free installation—no vacuuming, charging, or special certifications needed. Built with durable, kink-resistant materials and a leak-proof design, it ensures long-lasting, efficient performance. Available in multiple lengths, it’s the key to making your HVAC setup truly DIY-friendly.

Series

5th Gen DIY Line Set - R-454B

Compatible Air Handlers

6K, 9K, & 12K 5th Gen DIY

Line Set Length

16 ft

Lineset Fitting Type

Quick-Connection

Gross Dimensions

28.94" D x 4.92" H x 28.94" W

Color

White

Color Family

Bronze/Copper Metallic

Refrigerant Type

R-454B

Refrigerant Volume (Oz)

2.12

Liquid Line Size

1/4

Suction Line Size

3/8

Registered Warranty

N/A

Has Batteries

No

Contains Electronics

No

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Restricted States

GU;PR;VI

Net Weight (Lbs)

7.9

Gross Weight (Lbs)

11.7

 

Description
Product Specs
Manuals & Guides

This remote is included with each air handler in MRCOOL's 5th Generation DIY or Advantage Mini Split Systems.

Dimensions 2" W x 6" L x 1" H 
Works with MRCOOL DIY 5th Generation Mini Splits
Restricted States GU;PR;VI
Color White

Mini Split FAQ

 

What BTU rating should I choose for my air handler?

  • This depends on the coverage area/room size you are trying to heat/cool
  • An Air Handler's BTU is how powerful the fan is. A higher BTU rating will be able to heat/cool a larger area
Air Handler BTU Coverage Area/Room Size (Sq. Ft.)*
6K
Up to 200 Sq. Ft.
9K
Up to 375 Sq. Ft.
12K Up to 500 Sq. Ft.
18K Up to 750 Sq. Ft.
24k Up to 1,000 Sq. Ft.
36k Up to 1,500 Sq. Ft.

 

*Ceiling height, insulation, and local climate may impact the coverage area. For example, an uninsulated room will require more power than a well insulated room.

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