MRCOOL DIY Mini Split – 54,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM348HPW03C49
$8,505.00 Original price was: $8,505.00.$6,300.00Current price is: $6,300.00.
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This 4th Generation MRCOOL Mini Split system offers an all-inclusive solution for heating and cooling up to three separate rooms. The package consists of the DIY 48,000 BTU Multi-Zone Condenser, three 18,000 BTU Wall Mounted Air Handlers, three Remotes, and three 35 ft. Installation Kits. The standout feature is its DIY installation capability, making it accessible for users without requiring professional assistance.
Package Includes:
- MRCOOL DIY Multi Zone 5-Zone Condenser, 4th Gen Series, Model: DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, Model: DIY-18-HP-WMAH-230C25 (Quantity: 3)
- MRCOOL DIY 35 ft. 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, Model: DIY35-1412C (Quantity: 3)
It is important to note that when all air handlers are running simultaneously, their combined BTU output will not surpass the condenser’s 48,000 BTU rating.
Condenser
- Energy Efficiency:Â This 5-zone condenser, when paired with compatible MRCOOL air handlers, achieves a remarkable efficiency rating of 20.5 SEER.
- Year-Round Performance: Capable of delivering heat even in extreme temperatures, the system performs efficiently down to 5°F.
- Lifetime Warranty:Â MRCOOL offers a limited lifetime compressor warranty, the only one of its kind on the market. Simply register for the MRCOOL Care Program to secure this coverage.
Air Handler, 18K BTU (Quantity: 3)
- Wide Coverage:Â Each air handler can efficiently cover areas up to 750 sq. ft., making it ideal for larger spaces.
- Operating Modes:Â Designed for versatility, the unit offers multiple modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control:Â With Wi-Fi capability, this air handler can be controlled via Apple or Android smartphones using the Smart HVAC app, providing ultimate convenience.
- Simple Installation:Â Its lightweight, compact design makes it easy to install on most interior walls using the included mounting plate.
Line Set, 35 ft. (Quantity: 3)
- System Connection:Â These 35 ft. copper line sets connect the condenser to the air handlers. For multi-zone systems, a separate line set is required for each indoor unit to ensure optimal system performance.
- Pre-Charged Convenience:Â Each line set comes pre-charged with the necessary amount of R-410A refrigerant, eliminating the need for additional refrigerant during installation.
- DIY Savings:Â The pre-charged design allows for installation without hiring a certified technician, reducing overall installation costs.
Additional Line Sets & Couplers
If the standard line set length is insufficient for your setup, additional line sets can be purchased. A coupler kit is also available, allowing you to connect two standard line sets for extended reach.
What Does This Package Include?
This package comes with all the necessary tools for a smooth installation, including:
- Mounting plate for air handlers
- Anchor and mounting plate screws
- Remote control with holder and fixing screw (optional)
- MRCOOL Mini-Stat (optional) and user manual
- Magnetic ring (optional)
- Line-set adapter set (for 4-zone & 5-zone systems only)
- Batteries, air freshening filter, and seal for cooling & heating models
- Allen wrench, installation and owner’s manuals, 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, and neoprene
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Product Overview
 Covers 2250 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 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 5°F ~ 122°F Min Ambient Heat 5°F ~ 75.2°F 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 — 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.































