MRCOOL DIY Mini Split – 21,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM218HPW01C13
$3,590.00 Original price was: $3,590.00.$3,264.00Current price is: $3,264.00.
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This 4th Generation MRCOOL Mini Split System provides a comprehensive solution for heating and cooling two distinct spaces. The package includes a DIY 18,000 BTU Multi-Zone Condenser, a 9,000 BTU Wall-Mounted Air Handler, a 12,000 BTU Wall-Mounted Air Handler, two remote controls, and two 35 ft. installation kits. One of the standout features of this system is its user-friendly installation process. Enhanced Wi-Fi technology facilitates a swift and straightforward setup, making the MRCOOL DIY Multi adaptable for installation in almost any location 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 Wi-Fi, SKU: DIY-09-HP-WMAH-230C25
- MRCOOL DIY 4th Generation 12K BTU Wall-Mount Air Handler 230 Volt with Enhanced Wi-Fi, SKU: DIY-12-HP-WMAH-230C25
- MRCOOL DIY 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, SKU: DIY35-1412C (x2)
Please note that when all air handlers operate simultaneously, their total BTU output will remain within the condenser’s BTU rating. The combined output of the air handlers will not exceed the condenser’s 18K BTU capacity.
Condenser
- Energy Efficient: This two-zone condenser achieves an impressive 21 SEER efficiency rating when paired with compatible MRCOOL air handlers.
- Works in All Environments: Capable of heating even when external temperatures drop to -13°F.
- Lifetime Warranty: This condenser comes with a limited lifetime compressor warranty, the only one of its kind on the market. To benefit from this warranty, simply register with the MRCOOL Care Program.
Air Handler, 9K BTU, Quantity 1
- Large Coverage Area: Suitable for spaces up to 375 sq. ft.
- Versatile: Offers various operating modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy to Control: This unit can be conveniently controlled via your Apple or Android smartphone using the Smart HVAC app.
- Convenient Installation: Its lightweight and compact design allows for easy installation on most interior walls using the included mounting plate.
Air Handler, 12K BTU, Quantity 1
- Large Coverage Area: Capable of covering areas up to 500 sq. ft.
- Versatile: Includes multiple operating modes such as COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy to Control: Control this unit effortlessly with your Apple or Android smartphone through the Smart HVAC app.
- Convenient Installation: Designed for easy installation on most interior walls with the provided mounting plate.
Line Set 35 ft., Quantity 2
- This 35 ft. copper line set connects the 4th Generation MRCOOL Condenser to the MRCOOL Air Handlers—9K, 12K, and 18K.
- Pre-Charged: The line sets come pre-charged with the exact amount of R-410A refrigerant.
- DIY & Save Money: This allows for installation without the need for a certified technician, resulting in cost savings.
Additional Line Sets & Coupler
If the standard line set lengths are inadequate for your specific needs, additional line sets are available for purchase. A coupler kit will also be necessary to connect two standard line sets together.
What Does This Package Include?
The package also comes with installation-friendly tools: a mounting plate (for the air handlers), anchors, mounting plate screws, remote control, optional fixing screws for the remote controller holder, optional remote control holder, optional MRCOOL Mini-Stat and its user manual, optional magnetic ring, Line-Set Adapter Set (included with 4-zone and 5-zone systems only), batteries, air freshening filter, seals (for cooling and heating models), Allen wrench, installation and 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, and neoprene.
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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 5F ~ 122F Min Ambient Heat -13F ~ 75.2F 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 35 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ -
Coverage Area
When selecting an air conditioning or heating unit, it’s essential to consider the square footage of your space to ensure optimal performance. Utilize our coverage chart to determine the appropriate BTU (British Thermal Unit) rating required for your area. Here’s a breakdown:
- 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 other factors such as insulation quality, ceiling height, and the presence of appliances can influence performance. For personalized assistance, don’t hesitate 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.

























