MRCOOL DIY Mini Split – 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 ft. and 25 ft. Install Kit, DIYM218HPC01C01
$5,550.00 Original price was: $5,550.00.$4,173.00Current price is: $4,173.00.
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This 4th Generation MRCOOL Ceiling Cassette Mini Split offers a comprehensive cooling and heating solution for two separate rooms. The package includes a DIY 18,000 BTU Multi-Zone Condenser, one 9,000 BTU Ceiling Cassette Air Handler, one 12,000 BTU Ceiling Cassette Air Handler, two Remotes, and one 16 ft. and 25 ft. Installation Kits. It’s a low-profile system that eliminates the need for ductwork or wall space, seamlessly fitting into any environment. What sets this apart is its DIY installation feature, allowing you to set it up without professional assistance.
Package Includes:
- MRCOOL DIY Multi-Zone 2-Zone 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 Lineset for DIY 9K, 12K & 18K Indoor, DIY16-1412
- MRCOOL 25ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY25-1412
Condenser:
- Energy Efficient: Achieves a remarkable 21 SEER efficiency rating.
- All-Weather Performance: Functions even in extreme temperatures as low as -13°F.
- Warranty: Comes with a 7-year condenser replacement and 5-year parts warranty.
Air Handler, 9K BTU:
- Coverage: Suitable for areas up to 375 sq. ft.
- Versatility: Offers various operating modes including COOL, HEAT, AUTO, DRY, and SLEEP.
- Installation: Easily installs between all types of joists on 16″ center.
Air Handler, 12K BTU:
- Coverage: Suitable for areas up to 500 sq. ft.
- Versatility: Offers various operating modes including COOL, HEAT, AUTO, DRY, and SLEEP.
- Installation: Easily installs between all types of joists on 16″ center.
Line Set 16 ft. & 25 ft.:
- Pre-Charged: Comes pre-charged with R-410A refrigerant.
- DIY Installation: Allows for easy installation without the need for professional services, saving you money.
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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 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 (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 from Cool, Heat or Fan-Only
Dry — Dehumidify
Cool
Heat
Fan Only
Quiet
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 from Cool, Heat or Fan-Only
Dry — Dehumidify
Cool
Heat
Fan Only
Quiet
SleepLine Set — 16 Feet Length 16 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ Line Set — 25 Feet Length 25 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.

























