MRCOOL DIY Mini Split – 48,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM448HPW03C140
$8,704.00 Original price was: $8,704.00.$6,748.00Current price is: $6,748.00.
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This 4th Generation MRCOOL Mini Split system provides all the necessary components to efficiently cool and heat four distinct rooms. The package includes: a DIY 48,000 BTU Multi-Zone Condenser, two 9,000 BTU Wall Mounted Air Handlers, one 12,000 BTU Wall Mounted Air Handler, one 18,000 BTU Wall Mounted Air Handler, four remote controls, and four 35 ft. installation kits. The remarkable aspect of this system is its DIY installation capability.
Package Includes
- MRCOOL DIY Multi Zone 5-Zone Condenser, 4th Gen Series, SKU: DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 9K BTU Heat Pump Wall Mount Air Handler, 230 Volt with Enhanced WiFi, SKU: DIY-09-HP-WMAH-230C25 (x2)
- MRCOOL DIY 4th Generation 12K BTU Wall Mount Air Handler, 230 Volt with Enhanced WiFi, SKU: DIY-12-HP-WMAH-230C25
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler, 230 Volt with Enhanced WiFi, SKU: DIY-18-HP-WMAH-230C25
- MRCOOL DIY 35 ft. 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, SKU: DIY35-1412C (x4)
Condenser
- Energy Efficient:Â This 5 Zone condenser achieves an impressive 20.5 SEER efficiency rating when paired with compatible MRCOOL air handlers.
- Works in All Environments: It is designed to provide heating even in temperatures as low as 5°F.
- Lifetime Warranty:Â For added assurance, this is the only condenser available that includes a limited lifetime compressor warranty. Simply register with the MRCOOL Care Program to activate the lifetime warranty!
Air Handler, 9K BTU, Quantity: 2
- Large Coverage Area:Â This handler effectively covers an area of up to 375 sq. ft.
- Versatile:Â It features multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP, making it incredibly adaptable.
- Easy to Control:Â This unit can be conveniently managed via your Apple or Android smartphone using the Smart HVAC app.
- Convenient Installation:Â Its lightweight and compact design allow for straightforward installation on most interior walls using the included mounting plate.
Air Handler, 12K BTU, Quantity: 1
- Large Coverage Area:Â This handler effectively covers an area of up to 500 sq. ft.
- Versatile:Â It includes multiple operating modes such as COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP, ensuring great adaptability.
- Easy to Control:Â This unit can also be controlled through the Smart HVAC app on your Apple or Android smartphone.
- Convenient Installation:Â The lightweight and compact design facilitates easy installation on most interior walls with the provided mounting plate.
Air Handler, 18K BTU, Quantity: 1
- Large Coverage Area:Â This handler efficiently covers an area of up to 750 sq. ft.
- Versatile:Â It is equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP, offering excellent flexibility.
- Easy to Control:Â Control this unit easily using the Smart HVAC app on your Apple or Android smartphone.
- Convenient Installation:Â Its light and compact design makes installation a breeze on most interior walls with the included mounting plate.
Line Set, 35 ft., Quantity: 4
This 35 ft. copper line set connects the MRCOOL Condenser to the MRCOOL Air Handlers. Each indoor unit in a Multi-Zone system requires one line set to ensure proper functionality.
- Pre-Charged:Â These line sets come pre-charged with the exact amount of R-410A refrigerant for optimal performance.
- DIY & Save Money:Â This allows for installation without the need for a certified technician, resulting in significant cost savings!
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Product Overview
 Covers 2000 sq. ft.      Â
 DIY Installation
 Wall Mounted         Â
  Number of Zones: 3
 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 5°F ~ 122°F Min Ambient Heat 5°F ~ 75.2°F SEER 20.5 EER 11 Voltage 208V-230V / 60HZ / 40-60A 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
SleepAir 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
SleepAir Handler — 18K BTU Product Dimensions 42.52″W x 8.90″D x 13.19″H Mount Type Wall Cooling Capacity 18,000 BTU Heating Capacity 18,000 BTU Registered Warranty 5 Years Parts Modes Auto – auto selects from Cool, Heat or Fan-Only
Dry – dehumidify
Cool
Heat
Fan Only
Quiet
SleepLine 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.

























