MRCOOL DIY Mini Split – 54,000 BTU 5 Zone Ductless Air Conditioner and Heat Pump, DIY-B-548HP0909090918
$6,367.00 Original price was: $6,367.00.$5,306.00Current price is: $5,306.00.
- Fast, Free Shipping
- 30-Day Money-back Guarantee
- Payment Methods
This 4th Generation MRCOOL DIY Mini Split offers a complete solution for efficiently heating and cooling your home, office, or other spaces. The system includes everything necessary for installation: a 48K BTU Multi-Zone Condenser, four 9K BTU Wall Mount Air Handlers, and one 18K BTU Wall Mount Air Handler. The key advantage of this system is its DIY-friendly nature, allowing you to complete the installation yourself without the need for costly HVAC professionals or specialized tools.
Mini Split System Components:
- MRCOOL DIY Multi-Zone 5-Zone 48K BTU Condenser, 4th Gen Series (DIY-MULTI5-48HP230C)
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi (DIY-09-HP-WMAH-230C25) (x4)
- MRCOOL DIY 4th Generation 18K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi (DIY-18-HP-WMAH-230C25)
Important: This product does not include the lineset and communication wire for each air handler. Be sure to add them to your order if needed.
Please note, when operating all air handlers simultaneously, their combined BTU output will not surpass the 48K BTU capacity of the condenser.
Condenser (48K BTU)
- Energy Efficiency:Â This 48K BTU condenser achieves up to a remarkable 20.5 SEER2 rating, qualifying it for potential energy savings and tax rebates.
- Cold Weather Performance: Designed to operate in extreme conditions, this unit can provide heating even when outdoor temperatures fall as low as -5°F.
- Worry-Free Cooling and Heating:Â The condenser is backed by a 7-year compressor warranty and a 5-year parts warranty. For those seeking additional peace of mind, the MRCOOL Care Program offers lifetime compressor coverage upon registration.
9K BTU Air Handler
- Coverage Area:Â Effectively services areas between 180 to 375 sq. ft.
- Versatility:Â This unit is equipped with a range of modes, including COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP, making it adaptable to various needs.
- Smart Control:Â Manage the air handler effortlessly via the Smart HVAC app, available for both Apple and Android smartphones.
- Convenient Installation:Â Its lightweight, compact design and included mounting plate ensure straightforward installation on most interior walls.
18K BTU Air Handler
- Coverage Area:Â Designed for larger spaces, this unit covers areas between 375 to 750 sq. ft.
- Versatility:Â Like the 9K BTU version, this air handler features multiple operational modes: COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Smart Control:Â Easily controlled through the Smart HVAC app on Apple or Android devices.
- Convenient Installation:Â With a compact, user-friendly design, it can be easily installed on interior walls using the included mounting plate.
| 5 star | 0% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Our best Products
-
Product Overview
 Covers 2250 sq. ft.      Â
 DIY Installation
 Wall Mounted        Â
  Number of Zones: 5
 Voltage: 208 to 230     Â
 Outdoor Operating Temp (Cool): 5°F to 122°F
 Outdoor Operating Temp (Heat): 5°F to 75.2°F
-
Specifications and Dimensions
Condenser Product Dimensions 37.48″W x 16.34″D x 52.48″H Cooling Capacity 48,000 BTU Heating Capacity 48,000 BTU Zone Capacity 5 Cool Mode – Outdoor Operating Temperature Range 5°F ~ 122°F Heat Mode – Outdoor Operating Temperature Range 5°F ~ 75.2°F SEER2 20.50 EER2 11 HSPF2 9.2 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 Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
SleepAir Handler 18K BTU Product Dimensions 42.52″W x 8.90″D x 13.19″H Mount Type Wall Cooling Capacity 18,000 BTU Heating Capacity 18,000 BTU Registered Warranty 5 Years Parts Modes Auto (Auto selects Cool, Heat or Fan-Only)
Cool
Heat
Dry
Fan Only
Sleep -
Coverage Area
When considering the purchase of our cooling or heating system, it’s essential to determine the appropriate BTU output based on the square footage of your space. Please refer to the following coverage chart for guidance:
- 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 additional factors, such as insulation quality, ceiling height, and the presence of appliances, can influence performance. For personalized assistance in selecting the optimal solution for your needs, don’t hesitate to reach out to our experienced Sales Team.
-
-
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.





















