MRCOOL DIY 5th Gen Mini Split - 4-Zone 36,000 BTU Mini Split Condenser 230V with 12K + 12K + 6K + 6K Ceiling Cassette Air Handlers

MRCOOL DIY 5th Gen Mini Split - 4-Zone 36,000 BTU Mini Split Condenser 230V with 12K + 12K + 6K + 6K Ceiling Cassette Air Handlers

SKU: DIY5-4ZC-36HP-12K12K6K6K

Sale price$8,415.80 Regular price$10,195.00
Save 17%


Air Handler Type Ceiling

Choose Line Set Lengths:

Air Handler 1 - 12K - Line Set:

Air Handler 2 - 12K - Line Set:

Air Handler 3 - 6K - Line Set:

Air Handler 4 - 6K - Line Set:

Air Handler 5 - 6K - Line Set:


Estimated delivery:
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  • 30-Day Return Policy⁺

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 36K 4-Zone system includes two 12K and two 6K ceiling cassette 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 23 SEER2 and 9.9 HSPF2-4 for energy-efficient year-round comfort.
  • Low-Profile Ceiling Cassette Design: Flush-mounted unit fits between standard ceiling joists for a clean, built-in look.
  • 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 36,000 BTU 5 Zone Multi-Zone Mini Split Condenser 230v (DIY-MULTI5-36HP230D-O)
MRCOOL® DIY 5th Gen 36,000 BTU 5 Zone Multi-Zone Mini Split Condenser 230v (DIY-MULTI5-36HP230D-O) View Product
Description
Product Specs
Manuals & Guides

The brand new 5th Generation MRCOOL® DIY® 36k BTU Multi-Zone Ductless Mini-Split Condenser is the right choice if you need immediate, effective comfort that won’t break the bank! This system, which can be installed without the assistance of an HVAC professional, is one of the most efficient and innovative HVAC options on the market. With this condenser, you’ll be able to heat and cool up to 5 different spaces equaling around 1,500 square feet, meaning you can potentially heat and cool an entire home with just one mini-split system! Our DIY® Mini-Splits are able to forgo the evacuation and charging process because our patented Quick Connect® line sets are pre-charged with R-454B refrigerant, a more efficient and eco-friendly refrigerant than R-410A, which we have previously used.

This unit achieves a SEER2 of 23 and an HSPF2-4 of 9.9. These fittings make installation an incredibly safe and simple process, allowing you to save a lot of time and money. There are a variety of features to explore once the system is up and running. One of them is the ability to integrate your system with the SmartHVAC app, allowing you to control your comfort with the touch of a button. You can even go a step further and link your Amazon Alexa or Google home for touchless operation. With the app, you can set each zone’s temperature, set schedules for each unit, monitor your system’s energy usage, and more.

There are even more features to explore that will help you customize your comfort to be exactly what you want. We’ve got your back in the unlikely event that your system malfunctions. Your system will come with a 5 year parts warranty and a 7 year compressor warranty, and if you enroll in the MRCOOL® Care Program, you’ll be able to enjoy the Limited Lifetime Replacement warranty! For the best comfort you’ve ever felt and a sense of accomplishment as icing on the cake, choose the MRCOOL® 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.
Dimensions 16.14" D x 31.89" H x 37.24" W

SEER2

23

EER2

12

HSPF2-4

9.9

HSPF2-5

7.5

Tonnage

3

Cooling Capacity (BTU)

34000

Heating Capacity (BTU)

36000

Voltage (V)

208/230

Phase

1

Cycle

60

Max Fuse Breaker (A)

35

Min Circuit Ampacity (A)

30.5

Color

White

Zone Capacity

3

Refrigerant Type

R-454B

Refrigerant Volume (OZ)

104.75

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 X1)DIY-MULTI5-36HP230D-O

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® Series 5th Gen OuttaSight® 12K BTU 230V One-Way Ceiling Cassette Air Handler (DIYCASSETTE12HP-230D25-O)
MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU 230V One-Way Ceiling Cassette Air Handler (DIYCASSETTE12HP-230D25-O) View Product
Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® Series OuttaSight® 12K BTU 230V One-Way Ceiling Cassette is a sleek, efficient, and space-saving climate solution for areas up to 550 sq. ft. Engineered for easy installation, it seamlessly integrates into multi-zone systems, making it ideal for both new constructions and retrofit projects without requiring ductwork or wall space.

Designed for discreet placement, this cassette mounts flush between 16” ceiling joists, including pre-manufactured I-joists, providing a clean, modern appearance while maximizing room layout flexibility. It connects effortlessly to the MRCOOL® DIY® Quick Connect® line set, which comes pre-charged with R-454B, a more environmentally friendly refrigerant, eliminating the need for vacuuming and reducing installation time. With advanced filtration technology, this unit enhances indoor air quality, while the Elevation function lowers the filter panel for easy maintenance and cleaning. It operates quietly, ensuring a comfortable and peaceful environment in any room. 

The cassette is fully controllable through a wireless remote, SmartHVAC app, and voice commands via Amazon Alexa and Google Assistant, giving you ultimate convenience and customization. Backed by an industry-leading warranty, including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty, this system offers long-term dependability and year-round comfort.

Features

  • Low Profile Installation
  • Fits between 16" Ceiling Joists
  • Works with Multi and Single Zone Systems
  • Two-Stage DC motor
  • Quiet Operation
  • Multiple Operating Modes
  • Remote Included
  • Advanced Filtration
  • Swing Technology

Dimensions

13.19" D x 8.98" H x 50.31" W

CFM

353 / 312 / 283 / 247 / 177

Voltage (V)

208-230

Phase

1

Cycle

60

Max Fuse Breaker (A)

15

Min Circuit Ampacity (A)

3

Mount Type

Ceiling

Color

White

Rated Load

1

Max Coverage Area

550

Refrigerant Type

R-454B

Decibel Rating (DBA)

37

Decibel Rating Low (DBA)

24

Decibel Rating High (DBA)

41

Air Flow Direction

1-Way

Liquid Line Size

1/4

Suction Line Size

3/8

Blower Motor RPM

1075/982/797

Filter Type

Reusable

Fan Only Option

Yes

Quiet Mode

Yes

Sleep Mode

Yes

Auto Cool

Yes

WIFI Compatibility

Yes

APP Compatibility

Yes

Works with IOS

Yes

Works with Android

Yes

Remote Control Included

Yes

Registered Warranty

Limited Lifetime Compressor

Base Warranty

5-Year Part/7-Year Compressor

Bas Parts Warranty

5 Years

Registered Compressor Warranty

Limited Lifetime Compressor

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

Restricted States

GU;PR;VI

Net Weight (Lbs)

45

Gross Weight (Lbs)

88

MRCOOL® DIY® Series 5th Gen OuttaSight® 6K BTU 230V One-Way Ceiling Cassette Air Handler (DIYCASSETTE06HP-230D25-O)
MRCOOL® DIY® Series 5th Gen OuttaSight® 6K BTU 230V One-Way Ceiling Cassette Air Handler (DIYCASSETTE06HP-230D25-O) View Product
Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® Series OuttaSight® 6K BTU 230V One-Way Ceiling Cassette is a powerful and efficient climate control solution for spaces up to 200 sq. ft. Engineered for easy DIY installation, this system eliminates the need for specialized tools, making setup simple, cost-effective, and hassle-free. Designed to integrate seamlessly into multi-zone configurations, the cassette fits neatly between 16” ceiling joists, including pre-manufactured I-joists, for a clean, flush-mounted appearance. Unlike traditional ceiling cassettes that require extensive ductwork or inconvenient wall space, rethis unit offers a flexible installation ideal for both new builds and retrofit projects.

The cassette pairs effortlessly with the MRCOOL® DIY® Quick Connect® line set, which comes pre-charged with R-454B, an environmentally friendly refrigerant that eliminates the need for vacuuming. Advanced filtration enhances indoor air quality, while the Elevation function allows easy filter maintenance by lowering the panel for convenient access. With quiet operation and multiple control options—including a wireless remote, SmartHVAC app, and voice commands via Amazon Alexa and Google Assistant—this system offers personalized comfort. Backed by an industry-leading limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty, the MRCOOL® DIY® Outtasight® Ceiling Cassette delivers long-term reliability, advanced technology, and year-round comfort.

Features

  • Low Profile Installation
  • Fits between 16" Ceiling Joists
  • Works with Multi and Single Zone Systems
  • Two-Stage DC motor
  • Quiet Operation
  • Multiple Operating Modes
  • Remote Included
  • Advanced Filtration
  • Swing Technology

Dimensions

13.19" D x 8.98" H x 50.31" W

CFM

341 / 294 / 259 / 235 / 235

Voltage (V)

208-230

Phase

1

Cycle

60

Max Fuse Breaker (A)

15

Min Circuit Ampacity (A)

3

Mount Type

Ceiling

Color

White

Rated Load

0.8

Max Coverage Area

200

Refrigerant Type

R-454B

Decibel Rating (DBA)

35.5

Decibel Rating Low (DBA)

23.5

Decibel Rating High (DBA)

46.5

Air Flow Direction

1-Way

Liquid Line Size

1/4

Suction Line Size

3/8

Blower Motor RPM

1024/944/784

Filter Type

Reusable

Fan Only Option

Yes

Quiet Mode

Yes

Sleep Mode

Yes

Auto Cool

Yes

WIFI Compatibility

Yes

APP Compatibility

Yes

Works with IOS

Yes

Works with Android

Yes

Remote Control Included

Yes

Registered Warranty

Limited Lifetime Compressor

Base Warranty

5-Year Part/7-Year Compressor

Bas Parts Warranty

5 Years

Registered Compressor Warranty

Limited Lifetime Compressor

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

Restricted States

GU;PR;VI

Net Weight (Lbs)

45

Gross Weight (Lbs)

88

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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