MRCOOL DIY Mini Split – 54,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump, DIY-B-348HP181818
$6,232.00 Original price was: $6,232.00.$4,986.00Current price is: $4,986.00.
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This 4th Generation MRCOOL Mini Split system includes a DIY 48,000 BTU Multi-Zone Condenser, three 18,000 BTU Wall Mounted Air Handlers, and three remotes. The most remarkable feature is that you can install it yourself!
Package Includes
- MRCOOL DIY Multi-Zone 5-Zone 48K BTU Condenser, 4th Gen Series, DIY-MULTI5-48HP230C
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-18-HP-WMAH-230C25Â (x3)
Please note, this package does not include linesets. Be sure to add them to your order!
When all air handlers are operated simultaneously, their combined BTU output will not exceed the BTU rating of the condenser. Specifically, the combined BTU output of the air handlers will never surpass the 48K BTU rating of the condenser.
Condenser
- Energy Efficient:Â This 5-zone condenser, when paired with select MRCOOL air handlers, can achieve an impressive 20.5 SEER efficiency rating.
- Works in All Environments: Capable of maintaining heating performance even when temperatures reach 5°F.
- Lifetime Warranty:Â For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty. Simply register in the MRCOOL Care Program to receive the lifetime warranty!
Air Handler, 18K BTU, Quantity 3
- Large Coverage Area:Â Each handler covers an area up to 750 sq. ft.
- Versatile:Â Incredibly versatile, equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy to Control:Â This unit can be controlled via your Apple or Android smartphone through the Smart HVAC app.
- Convenient Installation:Â With its light and compact design, it can be easily installed on most interior walls using the included mounting plate.
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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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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 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 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
Sleep -
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.





















