MRCOOL DIY Mini Split – 54,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM448HPW06C140
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Introducing the 4th Generation MRCOOL Mini Split, a comprehensive cooling and heating solution designed to accommodate four distinct rooms effortlessly. This package comprises the DIY 48,000 BTU Multi-Zone Condenser, complemented by three 12,000 BTU Wall Mounted Air Handlers, and one 18,000 BTU Wall Mounted Air Handler, along with four Remotes and four 35 ft. Installation Kits. The highlight of this offering is its DIY installation feature, empowering users to set up the system independently.
The system boasts enhanced Wi-Fi engineering, facilitating swift and hassle-free setup. Moreover, the MRCOOL DIY Multi is remarkably versatile, adaptable to various installation scenarios without the need for specialized tools or costly equipment.
Package Contents:
- MRCOOL DIY Multi Zone 5-Zone 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 (x3)
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, SKU: DIY-18-HP-WMAH-230C25
- MRCOOL DIY 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, SKU: DIY35-1412C (x4)
The combined BTU output of the Air Handlers, when run simultaneously, will never surpass the 48K BTU rating of the Condenser.
Condenser Features:
- Energy Efficiency: This 5 Zone condenser, when paired with select MRCOOL air handlers, achieves an impressive 20.5 SEER efficiency rating.
- Versatility: It can effectively heat even in temperatures as low as 5°F.
- Lifetime Warranty: The only condenser on the market offering a limited lifetime compressor warranty. Simply register into the MRCOOL Care Program to avail of this lifetime warranty.
Air Handler (12K BTU, Quantity 3):
- Wide Coverage: Each handler covers an area of up to 500 sq. ft.
- Versatile Operation: Equipped with multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control: Control via Apple or Android smartphones using the Smart HVAC app.
- Easy Installation: Its light and compact design facilitate easy installation on most interior walls with the included mounting plate.
Air Handler (18K BTU, Quantity 1):
- Ample Coverage: Covers an area of up to 750 sq. ft.
- Similar Versatility and Control as the 12K BTU models.
Line Set (35 ft., Quantity 4):
- Copper line sets connect the MRCOOL Condenser to the Air Handlers.
- Pre-charged with the precise amount of R-410A refrigerant.
- DIY Installation: Installation can be completed without the need for a certified technician, saving on installation costs.
Additional Line Sets & Coupler:
- Optional additional line sets are available for purchase.
- Coupler kit facilitates the connection of two standard line sets.
Package Inclusions:
In addition to the main components, the package includes installation-friendly tools such as mounting plates, anchors, screws, remotes, and various optional accessories like the MRCOOL Mini-Stat, Magnetic Ring, Line-Set Adapter Set (for 4-zone & 5-zone systems only), and more. Detailed manuals and instructional materials ensure a smooth installation process.
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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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What's Included
Air Handler

Condenser

Line Set

Wall Sleeve

Communication Wire

Remote Control

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Specifications and Dimensions
Condenser Specifications 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 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
SleepLine Set Length 35 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.

























