MRCOOL DIY Mini Split – 18,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 and 35 ft. Install Kit, DIYM218HPC00C02
$5,899.00 Original price was: $5,899.00.$4,369.00Current price is: $4,369.00.
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This 4th Generation MRCOOL DIY Mini Split system provides everything necessary to efficiently cool and heat your space, whether it’s a home, office, or other setting. The package includes an 18K BTU Multi-Zone Condenser, two 9K BTU Ceiling Cassette Air Handlers, along with a remote, lineset, and communication wire for each handler. One of the most notable features of this system is the ability to install it yourself, eliminating the need for costly HVAC professionals or specialized tools.
Mini Split System Includes:
- MRCOOL DIY Multi-Zone 2-Zone 18K BTU Condenser, 4th Gen Series, SKU: DIY-MULTI2-18HP230C
- MRCOOL DIY Series 9K BTU Ceiling Cassette, SKU: DIYCASSETTE09HP-230C25 (x2)
- MRCOOL 16ft 1/4 x 1/2 Pre-Charged Lineset, suitable for 9K, 12K, & 18K indoor units, SKU: DIY16-1412
- MRCOOL 35ft 1/4 x 1/2 Pre-Charged Lineset, optimized for 4th Generation 9K, 12K, & 18K indoor units, SKU: DIY35-1412C
Condenser – 18K BTU:
- Energy Efficiency: This 18K BTU condenser achieves a highly efficient 21.2 SEER2 rating, making it eligible for significant energy savings and tax rebate programs.
- Performance in Extreme Conditions: Designed to operate in temperatures as low as -13°F, ensuring consistent heating even in cold climates.
- Warranty and Protection: The condenser includes a 7-year compressor warranty and a 5-year parts warranty. For extended protection, customers can enroll in the MRCOOL Care Program to obtain a lifetime compressor warranty.
Air Handler – 9K BTU:
- Coverage: Each air handler effectively serves areas ranging from 180 to 375 sq. ft.
- Multi-Mode Operation: Offering flexibility with modes including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP, it adapts to various needs.
- Discreet Installation: The low-profile design ensures it can be seamlessly integrated into your space, maintaining a clean and uncluttered appearance.
- Easy Installation: Specifically engineered for ease of installation between standard 16″ joists, including pre-manufactured I-joists.
- Filter Access: Maintenance is made simple with the Elevation function, which allows the filter panel to lower for quick and easy air filter cleaning.
Line Set:
- Pre-Charged and Ready: Each line set is pre-charged with the exact amount of R-410A refrigerant, eliminating guesswork.
- DIY Installation: This pre-charged design allows homeowners to install the system themselves, saving on the cost of hiring a certified technician.
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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 SEER2 21.2 EER2 12.5 HSPF2 9.6 Voltage 208V-230V / 60HZ / 18-25A Registered Warranty 7 Years Replacement on Condenser, 5 Years Parts Air Handler 9K BTU 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
SleepLine Set Length 16 feet Liquid Line Size 1/4″ Suction Line Size 1/2″ Length 35 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.

























