MRCOOL DIY Mini Split – 42,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP121218
$5,695.00 Original price was: $5,695.00.$5,686.00Current price is: $5,686.00.
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Introducing the 4th Generation MRCOOL Mini Split, a comprehensive solution to your HVAC needs. This package boasts a DIY 48,000 BTU Multi-Zone Condenser, complemented by two 12,000 BTU Wall Mounted Air Handlers, and one 18,000 BTU Wall Mounted Air Handler, accompanied by three remotes. What sets this system apart is its user-friendly installation, allowing you to set it up effortlessly.
Package Contents:
- MRCOOL DIY Multi Zone 5-Zone 48K BTU Condenser, 4th Gen Series, SKU: DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 12K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, SKU: DIY-12-HP-WMAH-230C25 (x2)
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, SKU: DIY-18-HP-WMAH-230C25
Please note: Linesets are not included; ensure to add them before completing your purchase.
Condenser:
- Energy Efficiency: This 5 Zone condenser, when paired with select MRCOOL air handlers, achieves an impressive 20.5 SEER efficiency rating.
- All-Weather Performance: Capable of maintaining heating performance even in temperatures as low as 5°F.
- Lifetime Warranty: Enjoy peace of mind with our limited lifetime compressor warranty, exclusive to this condenser. Simply register into the MRCOOL Care Program to activate the lifetime warranty.
Air Handler (12K BTU, Quantity 2):
- Wide Coverage: Each handler can efficiently cover an area of up to 500 sq. ft.
- Versatility: Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Seamlessly control your system using the Smart HVAC app on your Apple or Android smartphone.
- Easy Installation: Designed with a light and compact build, these handlers can be effortlessly installed on most interior walls using the included mounting plate.
Air Handler (18K BTU, Quantity 1):
- Ample Coverage: This handler extends its reach to areas up to 750 sq. ft.
- Versatility: Like its counterparts, it offers various operating modes for enhanced comfort.
- Smart Control: Enjoy the convenience of controlling your HVAC system through your smartphone.
- Easy Installation: With its compact design, installation is a breeze, making it suitable for most interior walls.
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Product Overview
 Covers 1750 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 5F ~ 122F Heat Mode – Outdoor Operating Temperature Range 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 — 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 — 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
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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.





















