MRCOOL DIY Mini Split – 54,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM448HPW07C140
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Introducing the 4th Generation MRCOOL Mini Split, a comprehensive solution designed to efficiently cool and heat up to four distinct rooms. Included in this package are essential components to facilitate seamless installation and operation:
- 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 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-18-HP-WMAH-230C25 (x2)
- MRCOOL DIY 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C (x4)
Key Features:
Condenser:
- Energy Efficiency: Achieves an impressive 20.5 SEER efficiency rating when paired with select MRCOOL air handlers.
- All-Weather Performance: Capable of heating even in temperatures as low as 5°F.
- Lifetime Warranty: Enjoy added assurance with the industry’s sole limited lifetime compressor warranty. Simply register with the MRCOOL Care Program to activate the lifetime warranty.
Air Handler (9K BTU, Quantity 2):
- Ample Coverage: Covers an area of up to 375 sq. ft.
- Versatility: Equipped with multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Manage settings conveniently using your Apple or Android smartphone through the Smart HVAC app.
- Easy Installation: Lightweight and compact design ensures straightforward installation on most interior walls using the provided mounting plate.
Air Handler (18K BTU, Quantity 2):
- Expanded Coverage: Covers an area of up to 750 sq. ft.
- Versatility: Offers a range of operating modes for customized comfort.
- Smart Control: Seamlessly integrate with your smartphone for remote management.
- Effortless Installation: Designed for easy mounting on interior walls.
Line Set (35 ft., Quantity 4):
- Seamless Connection: Copper line set ensures reliable connection between the condenser and air handlers.
- Pre-Charged: Comes pre-charged with the precise amount of R-410A refrigerant.
- DIY Installation: Simplified installation process saves you time and money.
Additional Options:
- Tailored Solutions: Customize your setup with additional line sets and a coupler kit for specific applications.
Included Accessories:
- Comprehensive Package: Installation-friendly tools and accessories ensure a smooth setup process.
Experience superior comfort and convenience with the 4th Generation MRCOOL Mini Split, designed for effortless installation and exceptional performance.
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Product Overview
 Covers 2250 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
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.

























