MRCOOL DIY Mini Split – 54,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump, DIY-B-448HP09091224
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Introducing the 4th Generation MRCOOL Mini Split, featuring a comprehensive package tailored for your comfort needs. This DIY solution comprises a 48,000 BTU Multi-Zone Condenser and an array of air handlers, including two 9,000 BTU units, one 12,000 BTU unit, and one 24,000 BTU unit, accompanied by four remotes. What sets this system apart is its user-friendly installation, allowing you to set it up with ease.
Included in the package are the following components, each meticulously designed to meet your requirements:
- MRCOOL DIY Multi Zone 5-Zone 48K BTU Condenser, 4th Gen Series, SKU: DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, SKU: DIY-09-HP-WMAH-230C25 (Quantity: 2)
- 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 24K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, SKU: DIY-24-HP-WMAH-230C25
Please note that linesets are not included in this package and should be added separately.
It’s important to highlight that when all air handlers operate simultaneously, their combined BTU output will not surpass the 48,000 BTU rating of the condenser.
Key features of the components include:
Condenser:
- Energy Efficiency: This 5-zone condenser, when paired with select MRCOOL air handlers, boasts an impressive 20.5 SEER efficiency rating.
- Adaptability: Capable of maintaining heating performance even at temperatures as low as 5°F.
- Warranty Coverage: Enjoy peace of mind with a limited lifetime compressor warranty, available exclusively through registration into the MRCOOL Care Program.
Air Handler (9K BTU, Quantity: 2):
- Ample Coverage: Each handler efficiently 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: Seamlessly control the unit via your Apple or Android smartphone using the Smart HVAC app.
- Easy Installation: Its lightweight and compact design facilitate hassle-free installation on most interior walls with the provided mounting plate.
Air Handler (12K BTU, Quantity: 1):
- Extensive Coverage: This handler is designed to cover an area of up to 500 sq. ft.
- Versatility: Offers various operating modes for personalized comfort.
- Smart Control: Utilize the Smart HVAC app for convenient control via your smartphone.
- Easy Installation: Designed for straightforward installation on interior walls, making setup a breeze.
Air Handler (24K BTU, Quantity: 1):
- Spacious Coverage: Covers an impressive area of up to 1,000 sq. ft.
- Versatility: Enjoy the flexibility of multiple operating modes to suit your preferences.
- Smart Control: Control the unit effortlessly using the Smart HVAC app on your smartphone.
- Simple Installation: Its compact and lightweight design ensures easy installation on most interior walls.
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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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Specifications and Dimensions
Condenser 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 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 24K BTU Product Dimensions 42.52″W x 8.90″D x 13.19″H Mount Type Wall Cooling Capacity 23,000 BTU Heating Capacity 25,000 BTU Registered Warranty 5 Years Parts Modes Auto – auto selects from Cool, Heat or Fan-Only
Dry – dehumidify
Cool
Heat
Fan Only
Quiet
Sleep -
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.





















