MRCOOL DIY Mini Split – 54,000 BTU 4 Zone Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM448HPW06C194
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Introducing the 4th Generation MRCOOL Mini Split, a comprehensive solution designed to efficiently cool and heat up to four separate rooms. This package includes all necessary components for installation: the DIY 48,000 BTU Multi-Zone Condenser, three 12,000 BTU Wall Mounted Air Handlers, one 18,000 BTU Wall Mounted Air Handler, four Remotes, and four 50 ft. Installation Kits. The standout feature of this system is its DIY installation capability, enabling users to set it up themselves with ease. Equipped with advanced Wi-Fi technology, the MRCOOL DIY Multi ensures a swift and hassle-free setup process. Its versatility allows for installation in virtually any location 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 (quantity: 3)
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, SKU: DIY-18-HP-WMAH-230C25
- MRCOOL DIY 50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, SKU: DIY50-1412C (quantity: 4)
The combined BTU output of the air handlers will never exceed the 48K BTU rating of the condenser when operated simultaneously.
Condenser:
- Energy Efficient: This 5-zone condenser, when paired with select MRCOOL air handlers, achieves an impressive 20.5 SEER efficiency rating.
- All-Environment Operation: Capable of heating even in temperatures as low as 5°F.
- Lifetime Warranty: Enjoy added peace of mind with the exclusive limited lifetime compressor warranty, available only with this condenser. Simply register for the MRCOOL Care Program to activate the lifetime warranty.
Air Handler, 12K BTU (Quantity: 3):
- Large Coverage Area: Each handler covers up to 500 sq. ft.
- Versatility: Offers multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy Control: Compatible with Apple or Android smartphones via the Smart HVAC app for convenient remote operation.
- Simple Installation: Lightweight and compact design facilitates easy mounting on most interior walls using the included mounting plate.
Air Handler, 18K BTU (Quantity: 1):
- Large Coverage Area: Covers up to 750 sq. ft.
- Versatility: Equipped with multiple operating modes for optimal comfort control.
- Remote Control Compatibility: Can be controlled via smartphone using the Smart HVAC app.
- Easy Installation: Designed for hassle-free mounting on interior walls with included hardware.
Line Set 50 ft. (Quantity: 4):
- Connects the 4th Generation MRCOOL DIY Condenser to the Air Handlers (9K, 12K, and 18K).
- Pre-Charged: Comes pre-filled with the precise amount of R-410A refrigerant.
- DIY Installation: Allows for installation without the need for professional assistance, saving on installation costs.
Additional Line Sets & Coupler:
- Additional line sets are available for purchase if standard lengths are insufficient for your application.
- Coupler kit facilitates connection of two standard line sets.
Included Installation Tools:
- Mounting Plate (for air handlers)
- Anchor
- Mounting Plate Screws
- Remote Control (with optional holder)
- MRCOOL Mini-Stat (optional) with User Manual
- Magnetic Ring (optional)
- Line-Set Adapter Set (Included with 4-zone & 5-zone systems only)
- Batteries
- Air Freshening Filter
- Seal (for cooling & heating models)
- Allen Wrench
- Installation & Owner’s Manual
- Remote Control Manual
- Smart Controller Kit
- Plastic Wall Sleeve
- Sound Deadening Pads
- Drain Pipe
- Cardboard Mounting Plate Template
- Quick Connect Line Set (refrigerant pipe)
- Insulation Material
- Non-Adhesive U.V. Tape
- Drain Joint
- Neoprene
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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 50 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.

























