MRCOOL DIY Mini Split – 18,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump, DIY-B-218HP0909
$2,481.00 Original price was: $2,481.00.$2,256.00Current price is: $2,256.00.
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The 4th Generation MRCOOL Mini Split is a highly efficient and versatile climate control system designed for easy DIY installation. This package includes a DIY 18,000 BTU Multi-Zone Condenser, two 9,000 BTU Wall Mounted Air Handlers, and two remotes.
Package Includes:
- MRCOOL DIY Multi-Zone 2-Zone 18K BTU Condenser (4th Gen Series, DIY-MULTI2-18HP230C)
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi (DIY-09-HP-WMAH-230C25) x2
Condenser:
- Energy Efficient:Â Achieves an impressive 21 SEER efficiency rating when paired with select MRCOOL air handlers.
- Works in All Environments: Delivers heating performance even at temperatures as low as -13°F.
- Lifetime Warranty:Â Comes with a limited lifetime compressor warranty through the MRCOOL Care Program.
Air Handler (9K BTU, Quantity 2):
- Large Coverage Area:Â Each handler covers up to 375 sq. ft.
- Versatile:Â Features multiple operating modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy to Control:Â Can be controlled via the Smart HVAC app on Apple or Android smartphones.
- Convenient Installation:Â Light and compact design with an included mounting plate for easy installation on most interior walls.
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Product Overview
 Covers 750 sq. ft.      Â
 DIY Installation
  Ceiling Mounted       Â
  Number of Zones: 2
 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 Product Dimensions 35.04″ W x 13.46″ D x 26.50″ H Cooling Capacity 18,000 BTU Heating Capacity 19,000 BTU Zone Capacity 2 Cool Mode – Outdoor Operating Temperature Range 5°F ~ 122°F Heat Mode – Outdoor Operating Temperature Range -13°F ~ 75.2°F SEER 21 EER 12.5 Voltage Requires a minimum of 208V-230V / 60Hz / 18-25A (please check your home meets this requirement prior to purchase) Registered Warranty 7 Years Replacement on Condenser, 5 Years Parts Air Handler — 9K BTU Product Dimensions 31.57″ W x 7.44″ D x 11.69″ H Mount Type Wall Cooling Capacity 9,000 BTU Heating Capacity 9,000 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 cooling or heating requirements for your space, it’s essential to refer to our coverage chart to determine the appropriate number of BTUs needed. Here’s a breakdown based on square footage:
- 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 various factors, such as insulation, ceiling height, and the presence of appliances, can impact performance. For personalized assistance, feel free to reach out to our 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.

























