MRCOOL DIY Mini Split – 45,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump with 25 ft. Install Kits, DIY-B-348HP091818-25
$6,395.00 Original price was: $6,395.00.$5,403.00Current price is: $5,403.00.
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Introducing the 4th Generation MRCOOL DIY Mini Split, an all-inclusive solution designed to efficiently cool and heat your residential or commercial space. This comprehensive package includes essential components such as the 48K BTU Multi-Zone Condenser, a 9K BTU Wall Mount Air Handler, two 18K BTU Air Handlers, and three installation kits. With this system, you have the freedom to tackle the installation process independently, eliminating the necessity for costly HVAC technicians or specialized equipment.
Included Products:
- MRCOOL DIY Multi Zone 5-Zone 48K BTU 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
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-18-HP-WMAH-230C25 (x2)
- MRCOOL 25ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY25-1412 (x3)
The standout feature of the MRCOOL DIY Mini Split lies in its adaptability, allowing for installation in virtually any location without the need for professional assistance or specialized tools.
Condenser 48K BTU:
- Energy Efficiency: Achieving an impressive 20.5 SEER2 efficiency rating, this 48K BTU condenser ensures significant energy savings, qualifying for various energy or tax rebates.
- Extreme Temperature Performance: Capable of heating even in subzero conditions as low as -5°F.
- Warranty Coverage: Enjoy peace of mind with a 7-year compressor and 5-year parts warranty, with the option to extend compressor coverage to a lifetime through registration in the MRCOOL Care Program.
Air Handler 9K BTU:
- Coverage Area: Effectively covers spaces ranging from 180 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 the Smart HVAC app on your Apple or Android smartphone.
- Easy Installation: With its lightweight and compact design, installation on most interior walls is hassle-free using the provided mounting plate.
Air Handler 18K BTU:
- Coverage Area: Provides ample coverage for spaces between 375 to 750 sq. ft.
- Versatility: Offers multiple operating modes for customized comfort.
- Smart Control: Allows for convenient management via the Smart HVAC app.
- Effortless Installation: The unit’s compact design ensures easy installation on most interior walls, facilitated by the included mounting plate.
Line Set:
- Pre-Charged: These line sets come pre-charged with the precise amount of R-410A refrigerant.
- Cost-Efficient DIY Installation: By eliminating the need for professional installation services, you save significant costs.
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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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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 — 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 — 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
SleepLine Set Length 25 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.























