MRCOOL DIY Mini Split – 54,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP121824
$5,923.00 Original price was: $5,923.00.$4,936.00Current price is: $4,936.00.
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Introducing the 4th Generation MRCOOL DIY Mini Split, an all-inclusive solution designed to efficiently cool and heat residential or commercial spaces. This comprehensive package comprises a 48K BTU Multi-Zone Condenser along with separate 12K, 18K, and 24K BTU Wall Mount Air Handlers. The hallmark feature of this system is its user-friendly installation process, empowering users to set it up without the need for costly HVAC technicians or specialized tools.
Products Included:
- MRCOOL DIY Multi Zone 5-Zone 48K BTU Condenser, 4th Gen Series, DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 12K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-12-HP-WMAH-230C25
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-18-HP-WMAH-230C25
- MRCOOL DIY 4th Generation 24K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-24-HP-WMAH-230C25
Operating all air handlers simultaneously ensures their combined BTU output stays within the limits of the condenser’s 48K BTU rating.
Please note: Lineset and communication wire for each air handler are not included. Make sure to add them to your order.
Condenser 48K BTU:
- Energy Efficiency: This condenser boasts an impressive 20.5 SEER2 efficiency rating, making it eligible for significant energy or tax rebates.
- Extreme Temperature Performance: Capable of heating even in conditions as low as -5°F.
- Warranty Coverage: Enjoy peace of mind with a 7-year compressor and 5-year parts warranty. Additionally, registering for the MRCOOL Care Program extends compressor coverage to a lifetime.
Air Handler 12K BTU:
- Coverage Area: Suitable for spaces ranging from 250 to 500 sq. ft.
- Versatility: Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Control the unit effortlessly through your Apple or Android smartphone using the Smart HVAC app.
- Easy Installation: Its lightweight and compact design facilitates hassle-free mounting on most interior walls.
Air Handler 18K BTU:
- Coverage Area: Suitable for spaces ranging from 375 to 750 sq. ft.
- Versatility: Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Control the unit effortlessly through your Apple or Android smartphone using the Smart HVAC app.
- Easy Installation: Its lightweight and compact design facilitates hassle-free mounting on most interior walls.
Air Handler 24K BTU:
- Coverage Area: Suitable for spaces ranging from 500 to 1,000 sq. ft.
- Versatility: Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Control the unit effortlessly through your Apple or Android smartphone using the Smart HVAC app.
- Easy Installation: Its lightweight and compact design facilitates hassle-free mounting on most interior walls.
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Product Overview
 Covers 2250 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 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 Cool Mode – Outdoor Operating Temperature Range 5°F ~ 122°F Heat Mode – Outdoor Operating Temperature Range 5°F ~ 75.2°F SEER2 20.50 EER2 11 HSPF2 9.2 Voltage Requires a minimum of 208V-230V/60HZ/18-25A (please check your home meets this electrical requirement prior to purchase) Registered Warranty 7 Years Replacement on Condenser, 5 Years Parts 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 Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
SleepAir Handler — 18K BTU Product Dimensions 34.61″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 Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
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 Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
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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.





















