MRCOOL DIY 5th Gen Mini Split - 3-Zone 48,000 BTU Mini Split Condenser 230V with 36K + 9K + 9K Wall Mount Air Handlers

MRCOOL DIY 5th Gen Mini Split - 3-Zone 48,000 BTU Mini Split Condenser 230V with 36K + 9K + 9K Wall Mount Air Handlers

SKU: DIY5-3Z-48HP-36K9K9K

Sale price$6,284.60 Regular price$7,696.00
Save 18%



Choose Line Set Lengths:

Air Handler 1 - 36K - Line Set:

Air Handler 2 - 9K - Line Set:

Air Handler 3 - 9K - Line Set:


Estimated restock:
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Package Overview

Take control of your home’s comfort with the MRCOOL® 5th Gen DIY® Multi-Zone Mini Split System — the ultimate solution for efficient, customizable, and true DIY-friendly heating and cooling.

This powerful 48K BTU 3-Zone system includes one 36K and two 9K wall mounted air handlers.

Features

  • Customize mini-split system: choose the perfect line set length for each zone just above the “Add to Cart” button.
  • Ultra-Efficient Cooling & Heating: Enjoy up to 21.8 and 10 HSPF2-4 for energy-efficient year-round comfort.
  • DIY-Friendly QuickConnect® Installation: No vacuuming or professional tools needed — pre-charged line sets make setup fast and simple.
  • Smart Voice & App Control: Full control via SmartHVAC app, Alexa, Google Assistant, or included wireless remote.
  • Eco-Conscious Refrigerant: Uses R-454B refrigerant with a low environmental impact.
  • Industry-Leading Warranty: Includes 5-year parts, 7-year compressor, and lifetime replacement with MRCOOL® Care registration.

Package Includes:

MRCOOL® DIY 5th Gen 48,000 BTU 6 Zone Multi-Zone Mini Split Condenser 230v (DIY-MULTI6-48HP230D-O)
MRCOOL® DIY 5th Gen 48,000 BTU 6 Zone Multi-Zone Mini Split Condenser 230v (DIY-MULTI6-48HP230D-O) View Product
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

MRCOOL DIY® 5th Gen E Star 36,000 BTU Single Zone Mini Split Air Handler 230V (DIY-36-HP-WMAH-230D25-O)
MRCOOL DIY® 5th Gen E Star 36,000 BTU Single Zone Mini Split Air Handler 230V (DIY-36-HP-WMAH-230D25-O) View Product
Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® 36K BTU Ductless Mini-Split Heat Pump is an efficient and versatile heating and cooling solution for spaces up to 1550 sq. ft. Designed for true do-it-yourself installation, it requires no special tools or professional help, making setup quick, straightforward, and cost-effective. A key feature of this system is the pre-charged 25-foot DIY® QuickConnect® line set, arriving to you already filled with R-454B refrigerant. 

This eliminates the need for vacuuming, reducing both installation time and expense. The included DIYPRO® cable further simplifies setup by removing the need for electrical conduit while enhancing durability against outdoor elements and wildlife. You can easily control the system using the included wireless remote, the SmartHVAC app on Apple and Android devices, or voice commands through Amazon Alexa and Google Assistant. For enhanced comfort, the Follow Me function ensures even temperature distribution by adjusting airflow based on the remote’s location. Dry Mode helps maintain a pleasant indoor environment by reducing excess humidity. Built for longevity, the Gold Fin® Condenser resists corrosion, making it ideal for coastal areas.

This system is backed by a robust warranty package, including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty. Experience effortless installation, smart features, and reliable year-round comfort with MRCOOL® DIY®.

Features

  • NEEP ccASHP Listed
  • 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

11.1" D x 14.25" H x 49.57" W

Tonnage

3

Voltage (V)

208/230

Phase

1

Cycle

60

Max Fuse Breaker (A)

15

Min Circuit Ampacity (A)

3

Mount Type

Wall

Color

White

Max Coverage Area

1550 sqft

Decibel Rating Low (DBA)

27.5

Decibel Rating High (DBA)

55.5

Number of Speeds

5

Oscillation

Yes

Liquid Line Size

3/8

Suction Line Size

5/8

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

Net Weight (Lbs)

48.72

Gross Depth (In)

18.74

Gross Height (In)

16.57

Gross Width (In)

53.94

Gross Weight (Lbs)

67.9

MRCOOL® DIY 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O)
MRCOOL® DIY 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O) View Product
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

MRCOOL® DIY 5th Gen Remote Control for MRCOOL DIY Ductless Systems (17317000A63435)
MRCOOL® DIY 5th Gen Remote Control for MRCOOL DIY Ductless Systems (17317000A63435) View Product
Description
Product Specs
Manuals & Guides

This remote is specifically designed for MRCOOL 5th Generation DIY Ductless 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.

Shipping & Returns

*Shipping Policy

  • Shipping is Free
  • Large appliances ship via Freight Curbside shipment. Meaning the carrier will drop off your item on your property not inside your home. The courier company will call ahead of time to schedule a drop off date
  • For the full details, visit our Shipping Page

Return/Refund Policy
  • 30-Day Return Policy
  • If your order arrives damaged, we will exchange you for a new one. Damage must be reported within 24 hours. 
  • For more details, visit our Return Policy Page

 

Email Quote

Customer Reviews

Based on 40 reviews
85%
(34)
13%
(5)
3%
(1)
0%
(0)
0%
(0)
R
Robert W. (Marietta, GA)
Decent Company

I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.

P
Peter K. (Phoenix, AZ)
Pretty Easy Install and Works Great!

Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!

W
Wes D. (Chicago, IL)
Installed and working great

Installed with ceiling cassettes... Quiet and keeping us cool so far !

C
Chris S. (Denver, CO)
Good product great customer service

Very good customer service will be buying from them again

M
Marinus R.
Install

Was easy to install. Directions were easy to follow and unit is working great

Why buy a MRCOOL from Home Outlet Direct?

- We are an authorized MRCOOL dealer

- Industry leading sales and customer service

- Thousands of happy customers

Real Customers. Real Results.

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