MRCOOL DIY Mini Split – 21,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump with 16 ft. and 25 ft. Install Kit, DIYM218HPW01C01
$3,532.00 Original price was: $3,532.00.$2,826.00Current price is: $2,826.00.
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This 4th Generation MRCOOL Mini Split system is the ideal solution for efficiently cooling and heating two separate rooms. The package includes a DIY 18,000 BTU Multi-Zone Condenser, one 9,000 BTU Wall-Mounted Air Handler, one 12,000 BTU Wall-Mounted Air Handler, two remote controls, and installation kits measuring 16 ft. and 25 ft. The standout feature of this system is its DIY installation capability, allowing you to set it up without professional help. The enhanced Wi-Fi technology streamlines the setup process, ensuring it is not only quick but also adaptable for installation in a variety of locations without the need for specialized tools or costly equipment.
Package Includes
- MRCOOL DIY Multi-Zone 2-Zone Condenser, 4th Gen Series, SKU: DIY-MULTI2-18HP230C
- MRCOOL DIY 4th Generation 9K BTU Wall-Mount Air Handler, 230 Volt with Enhanced WiFi, SKU: DIY-09-HP-WMAH-230C25
- MRCOOL DIY 4th Generation 12K BTU Wall-Mount Air Handler, 230 Volt with Enhanced WiFi, SKU: DIY-12-HP-WMAH-230C25
- MRCOOL 16 ft. 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, SKU: DIY16-1412
- MRCOOL 25 ft. 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, SKU: DIY25-1412
Please note that when all air handlers are operating simultaneously, their total BTU output must not exceed the condenser’s BTU rating. The combined output of the air handlers will always remain within the 18K BTU rating of the condenser.
Condenser
- Energy Efficient: This 2 Zone condenser, when paired with compatible MRCOOL air handlers, achieves an impressive efficiency rating of 21 SEER.
- Works in All Environments: Capable of heating even in temperatures as low as 5°F.
- Lifetime Warranty: For your peace of mind, this condenser features the industry’s only limited lifetime compressor warranty. Simply register in the MRCOOL Care Program to activate the warranty!
Air Handler, 9K BTU, Quantity 1
- Large Coverage Area: This handler efficiently covers an area up to 375 sq. ft.
- Versatile: Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidification), and SLEEP.
- Easy to Control: The unit can be easily controlled via your Apple or Android smartphone using the Smart HVAC app.
- Convenient Installation: Its lightweight and compact design allows for straightforward installation on most interior walls with the included mounting plate.
Air Handler, 12K BTU, Quantity 1
- Large Coverage Area: This handler efficiently covers an area up to 500 sq. ft.
- Versatile: Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidification), and SLEEP.
- Easy to Control: The unit can be easily controlled via your Apple or Android smartphone using the Smart HVAC app.
- Convenient Installation: Its lightweight and compact design allows for straightforward installation on most interior walls with the included mounting plate.
Line Set 16 ft., Quantity 1
This 16 ft. copper line set connects the MRCOOL Condenser to the MRCOOL Air Handlers. For Multi-Zone systems, one line set per indoor unit is necessary to ensure optimal system performance.
- Pre-Charged: These line sets are pre-charged with the precise amount of R-410A refrigerant.
- DIY & Save Money: This enables you to complete the installation without hiring a certified technician, thereby reducing costs.
Line Set 25 ft., Quantity 1
This 25 ft. copper line set connects the MRCOOL Condenser to the MRCOOL Air Handlers. For Multi-Zone systems, one line set per indoor unit is necessary to ensure optimal system performance.
- Pre-Charged: These line sets are pre-charged with the precise amount of R-410A refrigerant.
- DIY & Save Money: This enables you to complete the installation without hiring a certified technician, thereby reducing costs.
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Product Overview
 Covers 875 sq. ft.      Â
 DIY Installation
 Wall 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 Specifications 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 Min Ambient Cool 5°F ~ 122°F Min Ambient Heat -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 electrical 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
SleepAir 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
SleepLine Set Length 16 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ Line Set Length 25 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ -
Coverage Area
Please refer to the coverage chart below to determine the required BTUs for cooling or heating your desired area:
- Square Feet: 180-375 | BTU: 9K (SKU: 12345)
- Square Feet: 376-500 | BTU: 12K (SKU: 12346)
- Square Feet: 501-750 | BTU: 18K (SKU: 12347)
- Square Feet: 751-1,000 | BTU: 24K (SKU: 12348)
- Square Feet: 1,001-1,500 | BTU: 36K (SKU: 12349)
Please note that additional factors such as insulation, ceiling height, and the number of appliances in the room may affect performance. For further assistance, please contact 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.

























