MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Ai — Home Selection
VIP CARE HVAC & More
CONTACT US PAGE Support@ahomeselection.com REVIEWS
BUY IN BULK AND GET 10% OFF NOW Code "BULK"
BUY IN BULK AND GET 10% OFF NOW Code "BULK"
Call Button
Call Now Get up to $200 OFF when you call! Ends in 10:00

Customer Reviews

John D. "Great service! Highly recommend."

Jane S. "Saved $50 on my order."

Mike T. "Fast and reliable support."

MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump

MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP090912

MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump brings high-powered, efficient climate control to your home with the convenience of a DIY installation. This 4th-generation model features a 36,000 BTU multi-zone condenser connected to three ceiling cassette air handlers—two at 9,000 BTU and one at 12,000 BTU—providing customizable heating and cooling across three zones. Each zone has its own remote, enabling personalized temperature adjustments without the need for professional setup.

This MRCOOL DIY Mini Split system is perfect for homeowners looking to optimize energy use while enhancing comfort in multiple rooms. Designed for simplicity, the unit’s DIY installation process means you save on costs and can set up each air handler where it suits your space best. With both heating and cooling functionality, this system adapts seamlessly to changing seasons, offering year-round comfort with efficient performance.

Enjoy quiet, powerful climate control with MRCOOL’s ductless mini split system. From installation to everyday use, this system is crafted to meet modern home comfort needs, providing ease, reliability, and savings. Upgrade your home with MRCOOL DIY Mini Split for a tailored climate solution that fits right into your lifestyle.


 Package Includes

This package does not include linesets, don't forgot to scroll up and add them!

Condenser

  • Energy Efficient. This 4 Zone condenser, when paired with select MRCOOL air handlers, is capable of producing an impressive 21.5 SEER efficiency rating.
  • Works In All Environments. The capability to continue to deliver heating performance when temperatures reach -13°F
  • Lifetime Warranty. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty. Simply register into the MRCOOL Care Program to get the lifetime warranty!

    Air Handler, 9K BTU, Quantity 2

    • Large Coverage Area. Handler covers an area up to 375 sq. ft.
    • Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
    • Out of Sight Design. This unit has low profile installation for out of sight heating & cooling.
    • Worry-Free Installation. Easily install between all types of joists on 16" center - including pre-manufactured I-joists
    • Easy Air Filter Access. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.

    Air Handler, 12K BTU, Quantity 1

    • Large Coverage Area. Handler covers an area up to 500 sq. ft.
    • Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
    • Out of Sight Design. This unit has low profile installation for out of sight heating & cooling.
    • Worry-Free Installation. Easily install between all types of joists on 16" center - including pre-manufactured I-joists
    • Easy Air Filter Access. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.

            PRODUCT SPECIFICATIONS:
            Condenser

            Product Dimensions 37.24"W x  16.14"D x  31.89"H
            Cooling Capacity 36,000 BTU
            Heating Capacity 36,000 BTU
            Zone Capacity 4
            Cool Mode - Outdoor Operating Temperature Range 5F ~ 122F
            Heat Mode - Outdoor Operating Temperature Range -13F ~ 75.2F
            SEER 21.5
            EER 10.5
            Voltage Requires a minimum of 208V-230V/60HZ/27-45A (please check your home meets this electrical requirement prior to purchase)
            Registered Warranty 7 Years Replacement on Condenser, 5 Years Parts


            Air Handler 9K BTU

            Product Dimensions 50.31"W x 13.19"D x 8.98"H
            Mount Type Ceiling Cassette
            Cooling Capacity 9,000 BTU
            Heating Capacity 9,000 BTU
            Registered Warranty 5 Years Parts
            Modes Auto - Auto selects from Cool, Heat or Fan-Only
            Dry - dehumidify
            Cool
            Heat
            Fan Only
            Quiet
            Sleep


            Air Handler 12K BTU

            Product Dimensions 50.31"W x 13.19"D x 8.98"H
            Mount Type Ceiling Cassette
            Cooling Capacity 12,000 BTU
            Heating Capacity 12,000 BTU
            Registered Warranty 5 Years Parts
            Modes Auto - Auto selects from Cool, Heat or Fan-Only
            Dry - dehumidify
            Cool
            Heat
            Fan Only
            Quiet
            Sleep
            Installation Manual
            Product Brochure
            Performance Specifications
            Warranty
            Energy Guide
            AHRI Certificate

            Free Express Shipping on All orders within the USA

            Read Our Shipping Policy Here

            30 Day Free Returns on all orders

            Read about our Returns Policy Here

            Request A Quote

            Skip to content
            ★★★★★ Rated 4.8/5 by HVAC Professionals Trusted by Over 1,000 HVAC Technicians Nationwide
            MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP090912 COMPLETE SET

            MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP090912

            by MRCOOL
            SKU DIY-BC-336HP090912
            In stock | ETA: to
            Save $1,694.10
            $7,341.10
            $5,647.00

            Notify me when back in stock

            FREE EXPRESS SHIPPING Process orders in 1 business day
            STRESS FREE RETURNS 2 Year Returns
            Primum Quality Top Tier Products, Even Better Customer Care
            5 Year Warranty We Believe In Our Products & Our Team
            Professional Services Get service quotes the same day
            MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP090912
            $7,341.10
            $5,647.00
            Product successfully added to your cart!

            ACCESSORIES FOR MRCOOL

            MRCOOL DIYCOUPLER-14 + DIYCOUPLER-12 w/50 ft of Communication Wire, DIYCOUPLER-1412K50

            MRCOOL DIYCOUPLER-14 + DIYCOUPLER-12 w/50 ft of Communication Wire, DIYCOUPLER-1412K50

            $105.00

            MRCOOL 50FT 1/4 x 1/2 Flared Line Set Kit for 12K and 18K Olympus and Advantage Mini Split, MC50-1412

            MRCOOL 50FT 1/4 x 1/2 Flared Line Set Kit for 12K and 18K Olympus and Advantage Mini Split, MC50-1412

            $315.00

            MRCOOL 25 ft. Pre-Charged 3/8

            MRCOOL 25 ft. Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and Universal Series, NV25-3834

            $370.00

            MRCOOL LineGuard Set Cover for MRCOOL Ductless Mini Split Systems - 12 Feet, MLG450

            MRCOOL LineGuard Set Cover for MRCOOL Ductless Mini Split Systems - 12 Feet, MLG450

            $133.00

            MRCOOL 8kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK08

            MRCOOL 8kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK08

            $164.00

            MRCOOL 20kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK20

            MRCOOL 20kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK20

            $442.00

            MRCOOL 10kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK10

            MRCOOL 10kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK10

            $197.00

            MRCOOL 15kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK15

            MRCOOL 15kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK15

            $213.00

            MRCOOL 35 FT Pre-Charged 3/8

            MRCOOL 35 FT Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and Universal Series, NV35-3834

            $485.00

            MRCOOL 25 ft. Pre-Charged 3/8

            MRCOOL 25 ft. Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and Universal Series, NV25-3834

            $370.00

            MRCOOL® DIY Tool Kit - Wrench, Hole Saw, Tool Bag

            MRCOOL® DIY Tool Kit - Wrench, Hole Saw, Tool Bag

            $69.99

            MRCOOL® Mini Split Cleaning Care Kit

            MRCOOL® Mini Split Cleaning Care Kit

            $79.99

            MRCOOL Downflow Application 14 In. Square to Round Adaptor Kit for 2-3 Signature Packaged Units, M14DSR4260A

            MRCOOL Downflow Application 14 In. Square to Round Adaptor Kit for 2-3 Signature Packaged Units, M14DSR4260A

            $106.00

            MRCOOL 25FT 1/4 x 1/2 Flared Line Set Kit for 12K and 18K Olympus and Advantage Mini Split, MC25-1412

            MRCOOL 25FT 1/4 x 1/2 Flared Line Set Kit for 12K and 18K Olympus and Advantage Mini Split, MC25-1412

            $137.00

            MRCOOL 25FT 3/8 x 5/8 Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC25-3858

            MRCOOL 25FT 3/8 x 5/8 Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC25-3858

            $151.00

            MRCOOL 50FT 1/4 x 3/8 Flared Line Set Kit for 9K Olympus and Advantage Mini Split, MC50-1438

            MRCOOL 50FT 1/4 x 3/8 Flared Line Set Kit for 9K Olympus and Advantage Mini Split, MC50-1438

            $308.00

            MRCOOL 50FT 3/8 x 5/8 Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC50-3858

            MRCOOL 50FT 3/8 x 5/8 Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC50-3858

            $329.00

            MRCOOL DIY 50ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor, 4th Generation, DIY50-3858C

            MRCOOL DIY 50ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor, 4th Generation, DIY50-3858C

            $565.00

            MRCOOL DIYCOUPLER-58 + DIYCOUPLER-38 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C

            MRCOOL DIYCOUPLER-58 + DIYCOUPLER-38 + 75ft MC-5 Cable, 4th Gen, DIYCOUPLER-3858K75C

            $393.00

            MRCOOL 5 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK05H

            MRCOOL 5 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK05H

            $149.00

            MRCOOL 7.5 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK07H

            MRCOOL 7.5 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK07H

            $181.00

            MRCOOL 10 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK10H

            MRCOOL 10 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK10H

            $194.00

            MRCOOL 15 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK15H

            MRCOOL 15 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK15H

            $295.00

            MRCOOL 5 KW Heat Strip with Circuit Breaker for Packaged Units, MHK05P

            MRCOOL 5 KW Heat Strip with Circuit Breaker for Packaged Units, MHK05P

            $163.00

            MRCOOL 20 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK20H

            MRCOOL 20 KW Signature Air Handler Heat Strip with Circuit Breaker, MHK20H

            $331.00

            MRCOOL 7.5 KW Heat Strip with Circuit Breaker for Packaged Units, MHK07P

            MRCOOL 7.5 KW Heat Strip with Circuit Breaker for Packaged Units, MHK07P

            $179.00

            MRCOOL 10 KW Heat Strip with Circuit Breaker for Packaged Units, MHK10P

            MRCOOL 10 KW Heat Strip with Circuit Breaker for Packaged Units, MHK10P

            $194.00

            MRCOOL 15 KW Heat Strip with Circuit Breaker for Packaged Units, MHK15P

            MRCOOL 15 KW Heat Strip with Circuit Breaker for Packaged Units, MHK15P

            $264.00

            MRCOOL 20 KW Heat Strip with Circuit Breaker for Packaged Units, MHK20P

            MRCOOL 20 KW Heat Strip with Circuit Breaker for Packaged Units, MHK20P

            $367.00

            MRCOOL 5 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK05B

            MRCOOL 5 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK05B

            $159.00

            MRCOOL 7.5 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK07B

            MRCOOL 7.5 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK07B

            $190.00

            MRCOOL 10 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK10B

            MRCOOL 10 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK10B

            $200.00

            MRCOOL 15 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK15B

            MRCOOL 15 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK15B

            $306.00

            MRCOOL 20 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK20B

            MRCOOL 20 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK20B

            $351.00

            MRCOOL 5kw ProDirect Heat Kit, PHK05H

            MRCOOL 5kw ProDirect Heat Kit, PHK05H

            $178.00

            MRCOOL 7.5kw ProDirect Heat Kit, PHK07H

            MRCOOL 7.5kw ProDirect Heat Kit, PHK07H

            $234.00

            MRCOOL 10kw ProDirect Heat Kit, PHK10H

            MRCOOL 10kw ProDirect Heat Kit, PHK10H

            $130.00

            MRCOOL 15kw ProDirect Heat Kit, PHK15H

            MRCOOL 15kw ProDirect Heat Kit, PHK15H

            $210.00

            MRCOOL 20kw ProDirect Heat Kit, PHK20H

            MRCOOL 20kw ProDirect Heat Kit, PHK20H

            $214.00

            MRCOOL 5 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK05U

            MRCOOL 5 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK05U

            $137.00

            MRCOOL 8 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK08U

            MRCOOL 8 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK08U

            $162.00

            MRCOOL 10 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK10U

            MRCOOL 10 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK10U

            $169.00

            MRCOOL 15 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK15U

            MRCOOL 15 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK15U

            $260.00

            MRCOOL 20 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK20U

            MRCOOL 20 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK20U

            $306.00

            MRCOOL 16FT 1/4

            MRCOOL 16FT 1/4" x 3/8" Flared Line Set Kit for 9K Olympus and Advantage Mini Split, MC16-1438

            $121.00

            MRCOOL 16FT 1/4

            MRCOOL 16FT 1/4" x 1/2" Flared Line Set Kit for 12K and 18K Olympus and Advantage Mini Split, MC16-1412

            $133.00

            MRCOOL 16FT 3/8

            MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC16-3858

            $144.00

            MRCOOL Pre-Charged 3/8

            MRCOOL Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and Universal Series, NV15-3834

            $288.00

            MRCOOL 50 ft. Pre-Charged 3/8

            MRCOOL 50 ft. Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and Universal Series, NV50-3834

            $598.00

            MRCOOL 3/4 Flare-to-Weld Fitting, WF-34

            MRCOOL 3/4 Flare-to-Weld Fitting, WF-34

            $26.25

            MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-336HP090912 Reviews

            Build the perfect HVAC unit

            Get up to 40% OFF on your next system with our custom tool!

            Build Your SYSTEM

            Latest from HVAC & More

            • How Much Does a MRCOOL cost?

              How much does it cost to install a MRCOOL mini split? That's the question we hear from customers ...

              Read more

            • Mini Split Cost vs Central Air: Comparing Cooling Options for Your Home

              Read more

            • How to Add Refrigerant to Mini Split: A Quick Guide for Techs

              Read more

            Read about HVAC

            FREE EXPRESS SHIPPING

            Process orders in 1 business day

            Stress Free Returns

            2 Year Returns

            Primum Quality

            Top Tier Products, Even Better Customer Care

            5 Year Warranty

            We Believe In Our Products & Our Team