MRCOOL DIY Mini Split – 42,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM448HPW02C140
$8,379.00 Original price was: $8,379.00.$6,598.00Current price is: $6,598.00.
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Introducing the 4th Generation MRCOOL Mini Split, a comprehensive cooling and heating solution designed for up to four different rooms. This package, inclusive of the DIY 48,000 BTU Multi-Zone Condenser, two 9,000 BTU Wall Mounted Air Handlers, two 12,000 BTU Wall Mounted Air Handlers, four Remotes, and four 35 ft. Installation Kits, equips you with everything necessary for a seamless installation experience.
One of the standout features of this system is its user-friendly installation process, allowing you to set it up independently. Enhanced Wi-Fi engineering facilitates quick and easy setup, and the flexibility of the MRCOOL DIY Multi means it can be installed virtually anywhere without the need for specialized tools or expensive equipment.
Package Components:
- MRCOOL DIY Multi Zone 5-Zone Condenser, 4th Gen Series, DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-09-HP-WMAH-230C25 (x2)
- MRCOOL DIY 4th Generation 12K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-12-HP-WMAH-230C25 (x2)
- MRCOOL DIY 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C (x4)
Condenser Features:
- Energy Efficient: Achieves an impressive 20.5 SEER efficiency rating when paired with select MRCOOL air handlers.
- All-Environment Operation: Capable of heating even in temperatures as low as 5°F.
- Lifetime Warranty: The only condenser on the market offering a limited lifetime compressor warranty, providing added peace of mind. Registration into the MRCOOL Care Program grants access to this lifetime warranty.
Air Handler, 9K BTU (Quantity 2):
- Large Coverage Area: Covers up to 375 sq. ft.
- Versatile Operation: Equipped with multiple modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smartphone Control: Compatible with the Smart HVAC app for convenient control via Apple or Android devices.
- Easy Installation: Lightweight and compact design enables easy installation on most interior walls with the included mounting plate.
Air Handler, 12K BTU (Quantity 2):
- Large Coverage Area: Covers up to 500 sq. ft.
- Versatile Operation: Offers multiple modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smartphone Control: Compatible with the Smart HVAC app for convenient control via Apple or Android devices.
- Easy Installation: Lightweight and compact design facilitates straightforward installation on most interior walls with the included mounting plate.
Line Set 35 ft. (Quantity 4):
- Copper line sets connecting the MRCOOL Condenser to the Air Handlers.
- Pre-Charged: Comes pre-charged with the precise amount of R-410A refrigerant.
- DIY Installation: Enables installation without the need for a certified technician, saving on installation costs.
Additional Line Sets & Coupler:
- Additional line sets available for purchase if default lengths are insufficient.
- Coupler kit facilitates connection of two standard line sets together.
This package also includes an array of installation-friendly tools and accessories, ensuring a comprehensive and hassle-free installation process.
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Product Overview
 Covers 1750 sq. ft.      Â
 DIY Installation
 Wall Mounted         Â
  Number of Zones: 4
 Voltage: 208 to 230     Â
 Outdoor Operating Temp (Cool): 5°F to 122°F
 Outdoor Operating Temp (Heat): 5°F to 75.2°F
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What's Included
Air Handler

Condenser

Line Set

Wall Sleeve

Communication Wire

Remote Control

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Specifications and Dimensions
Condenser Specifications Product Dimensions 37.48″W x 16.34″D x 52.48″H Cooling Capacity 48,000 BTU Heating Capacity 48,000 BTU Zone Capacity 5 Min Ambient Cool 5F ~ 122F Min Ambient Heat 5F ~ 75.2F SEER 20.5 EER 11 Voltage Requires a minimum of 208V-230V / 60HZ / 40-60A (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 31.57″W x 7.44″D x 11.69″H Mount Type Wall 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 31.57″W x 7.44″D x 11.69″H Mount Type Wall 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
Line Set Length 35 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ -
Coverage Area
When considering the purchase of our cooling or heating system, it’s essential to determine the appropriate BTU output based on the square footage of your space. Please refer to the following coverage chart for guidance:
- Square Feet: 180-375 | BTU = 9K
- Square Feet: 376-500 | BTU = 12K
- Square Feet: 501-750 | BTU = 18K
- Square Feet: 751-1,000 | BTU = 24K
- Square Feet: 1,001-1,500 | BTU = 36K
Keep in mind that additional factors, such as insulation quality, ceiling height, and the presence of appliances, can influence performance. For personalized assistance in selecting the optimal solution for your needs, don’t hesitate to reach out to our experienced Sales Team.
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Handling Line Sets
When installing your MRCOOL system, handle refrigerant lines carefully to ensure optimal performance and prevent damage.
Bending the Copper Lines: Maintain a minimum 4-inch bend radius and use smooth curves instead of sharp angles to protect the lines and ensure proper refrigerant flow.
Avoid Repeated Bending: Bending copper lines more than three times can harden and weaken them, increasing the risk of breakage. Handle with care and minimize adjustments.
For best results, use gradual bends and consult a licensed professional or our support team if needed.

























