MRCOOL DIY Mini Split – 45,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP091224
$4,998.00 Original price was: $4,998.00.$4,654.00Current price is: $4,654.00.
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Introducing the 4th Generation MRCOOL DIY Mini Split, a comprehensive solution for cooling and heating your residential or commercial space. Included in this package are the essentials: a 48K BTU Multi-Zone Condenser and 9K, 12K, and 24K BTU Wall Mount Air Handlers. What sets this system apart is its DIY installation feature, empowering you to set it up without the need for costly HVAC professionals or specialized equipment.
Mini Split System Components:
- 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
- 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
Note: Lineset and communication wire for each air handler are not included.
Condenser 48K BTU:
- Energy Efficiency: Achieves an impressive 20.5 SEER2 efficiency rating, ensuring substantial energy savings eligible for rebates.
- Extreme Temperature Operation: Capable of heating even in conditions as low as -5°F.
- Warranty Coverage: Backed by a 7-year compressor and 5-year parts warranty, with the option for lifetime compressor coverage through registration in the MRCOOL Care Program.
Air Handler 9K BTU:
- Coverage Area: Offers expansive coverage ranging from 180 to 375 sq. ft.
- Versatility: Equipped with multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Seamlessly integrates with Apple or Android smartphones via the Smart HVAC app for convenient operation.
- Easy Installation: Featuring a lightweight and compact design, installation is straightforward and can be done on most interior walls using the provided mounting plate.
Air Handler 12K BTU:
- Coverage Area: Offers expansive coverage ranging from 250 to 500 sq. ft.
- Versatility: Equipped with multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Seamlessly integrates with Apple or Android smartphones via the Smart HVAC app for convenient operation.
- Easy Installation: Featuring a lightweight and compact design, installation is straightforward and can be done on most interior walls using the provided mounting plate.
Air Handler 24K BTU:
- Coverage Area: Offers expansive coverage ranging from 500 to 1,000 sq. ft.
- Versatility: Equipped with multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Seamlessly integrates with Apple or Android smartphones via the Smart HVAC app for convenient operation.
- Easy Installation: Featuring a lightweight and compact design, installation is straightforward and can be done on most interior walls using the provided mounting plate.
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Product Overview
 Covers 1875 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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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 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 Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
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 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.





















