Take control of your home’s comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — the simplest and most affordable way to enjoy powerful, energy-efficient heating and cooling without hiring a professional.
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Three Rooms, Total Comfort: Heat or cool three areas up to 750 sq. ft., 750 sq. ft., and 1,000 sq. ft., each with independent temperature control for personalized comfort throughout your home.
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Truly DIY-Friendly: Say goodbye to costly installations — no HVAC license or special tools needed. If you can handle basic hand tools, you can install it yourself.
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Quick, No-Hassle Setup: Each unit comes with pre-charged Quick-Connect® line sets, eliminating the need for refrigerant handling or vacuuming. Just connect the lines, tighten, and enjoy immediate comfort.
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Energy Savings All Year: With up to 22 SEER2 cooling efficiency and 10.6 HSPF2-4 heating performance, this system delivers strong year-round energy savings while keeping you comfortable in any season.
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Built for Any Climate: Enjoy reliable performance even in extreme cold — the MRCOOL DIY heats efficiently down to -13°F.
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Long-Term Protection: Backed by a 7-Year Compressor Replacement Warranty and 5-Year Parts Warranty for peace of mind.
From blazing summers to frosty winters, the MRCOOL DIY Mini Split System ensures your home stays comfortable while keeping energy costs low.
Smart. Simple. Affordable.
Note: When multiple air handlers operate at the same time, their combined BTU output is limited by the condenser’s total capacity. For this system, the condenser can deliver up to 55,000 BTU in total.
WHAT YOU GET:
MRCOOL DIY® 5th Gen 55,000 BTU 6-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI6-55HP230D-O)
MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)
MRCOOL DIY® 5th Gen 24,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-24-HP-WMAH-230D25-O)
NOTE: Line sets are not included. Please choose your line set above.
If all air handlers are run simultaneously, their combined BTU output will not exceed the BTU rating of the condenser.
SPECIFICATIONS:
| SYSTEM OVERVIEW |
| System Type |
Ductless Mini Split Air Conditioner & Heat Pump |
| Zones |
3 |
| Capacity |
Total: 60,000 BTU
Zone 1: 18,000 BTU
Zone 2: 18,000 BTU
Zone 3: 24,000 BTU
|
| Coverage Area |
Total: 2,500 sq. ft.
Zone 1: 750 sq. ft.
Zone 2: 750 sq. ft.
Zone 3: 1,000 sq. ft.
|
| Refrigerant |
R-454B |
| Line Sets Included |
None - Choose Your Line Sets Above! |
| Warranty |
7 Years Compressor
5 Years Parts
|
| OUTDOOR UNIT (55K) x 1 |
| Model |
DIY-MULTI6-55HP230D-O |
| Dimensions |
37.48" W x 16.34" D x 52.48" H |
| Cooling Capacity |
47,000 BTU |
| SEER2 |
22.0 |
| EER2 |
12.0 |
| Heating Capacity |
55,000 BTU |
| HSPF2-4 |
10.6 |
| HSPF2-5 |
8.5 |
| Outdoor Noise Level |
64.0 dB(A) |
| Outdoor Operating Temperature |
Cooling: -22°F – 122°F
Heating: -22°F – 75°F
|
| Voltage |
208–230V |
| Phase |
1 |
| Cycle |
60Hz |
| Min Circuit Ampacity |
43.0A |
| Max Fuse Breaker |
45.0A |
| Weight |
245.81 lbs |
| Certifications |
ENERGY STAR Certified
AHRI Certified
UL Listed
ETL Listed
|
| INDOOR UNIT (18K) x 2 |
| Model |
DIY-18-HP-WMAH-230D25-O |
| Dimensions |
42.52" W x 8.9" D x 13.19" H |
| Mounting Type |
Wall |
| Cooling Capacity |
18,000 BTU |
| Heating Capacity |
18,000 BTU |
| Coverage Area |
501 to 750 sq. ft. |
| Liquid Line Size |
1/4" |
| Suction Line Size |
1/2" |
| Modes |
Auto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
|
| Weight |
35.49 lbs |
| INDOOR UNIT (24K) x 1 |
| Model |
DIY-24-HP-WMAH-230D25-O |
| Dimensions |
42.52" W x 8.9" D x 13.19" H |
| Mounting Type |
Wall |
| Cooling Capacity |
24,000 BTU |
| Heating Capacity |
24,000 BTU |
| Coverage Area |
751 to 1,000 sq. ft. |
| Liquid Line Size |
3/8" |
| Suction Line Size |
5/8" |
| Modes |
Auto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
|
| Weight |
35.93 lbs |
GUIDE:
SHIPPING POLICY:
Free Curbside Delivery
MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.
Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.
RETURN POLICY:
MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.
Restocking Fee
Please note, a 35% restocking fee will be applied to all approved returns.
Non-Returnable Items
Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.
