MRCOOL DIY Mini Split – 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 and 50 ft. Install Kit, DIYM218HPC01C04
$6,012.00 Original price was: $6,012.00.$4,453.00Current price is: $4,453.00.
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Experience unparalleled comfort and efficiency with the 4th Generation MRCOOL DIY Mini Split. This versatile system provides both heating and cooling for your home, office, or any space you desire. What sets it apart is its DIY-friendly design, allowing for easy installation without the need for costly HVAC technicians or specialized equipment. Here’s what you’ll receive:
Mini Split System Includes:
- MRCOOL DIY Multi-Zone 2-Zone 18K BTU Condenser, 4th Gen Series, DIY-MULTI2-18HP230C
- MRCOOL DIY Series 9K BTU Ceiling Cassette, DIYCASSETTE09HP-230C25
- MRCOOL DIY Series 12K BTU Ceiling Cassette, DIYCASSETTE12HP-230C25
- MRCOOL 16ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY16-1412
- MRCOOL 50ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY50-1412C
Condenser 18K BTU:
- Energy Efficient: Produces an impressive 21.2 SEER efficiency rating, qualifying for energy or tax rebates.
- Works In Extreme Temperature: Capable of heating even when temperatures drop to -13°F.
- Warranty Coverage: Comes with a 7-year compressor and 5-year parts warranty, extendable to lifetime coverage on the compressor through the MRCOOL Care Program.
Air Handler 9K BTU:
- Vast Coverage Area: Covers between 180 to 375 sq. ft.
- Versatile Operation: Equipped with multiple modes including COOL, HEAT, AUTO, DRY, and SLEEP.
- Out of Sight Design: Low profile installation for discreet heating and cooling.
- Easy Maintenance: Elevation function allows for easy access to air filters.
Air Handler 12K BTU:
- Vast Coverage Area: Covers between 250 to 500 sq. ft.
- Versatile Operation: Equipped with multiple modes including COOL, HEAT, AUTO, DRY, and SLEEP.
- Out of Sight Design: Low profile installation for discreet heating and cooling.
- Easy Maintenance: Elevation function allows for easy access to air filters.
Line Set:
- Pre-Charged: Comes pre-charged with the precise amount of R-410A refrigerant.
- DIY Installation: Allows for installation without the need for a certified technician, saving you money.
Upgrade your comfort with the MRCOOL DIY Mini Split, designed for easy installation, energy efficiency, and reliable performance.
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Product Overview
 Covers 875 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 SEER2 21.2 EER2 12.5 HSPF2 9.6 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 (Ceiling Cassette) Product Dimensions 50.31″ W x 13.19″ D x 8.98″ H Mount Type Ceiling Cassette Cooling Capacity 9,000 BTU Heating Capacity 9,000 BTU Registered Warranty 5 Years Parts Modes Auto (Auto selects Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
SleepAir Handler — 12K BTU (Ceiling Cassette) Product Dimensions 50.31″ W x 13.19″ D x 8.98″ H Mount Type Ceiling Cassette Cooling Capacity 12,000 BTU Heating Capacity 12,000 BTU Registered Warranty 5 Years Parts Modes Auto (Auto selects Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
SleepLine Set — 16 Feet Length 16 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ Line Set — 50 Feet Length 50 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ -
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.

























