Take complete control of your home comfort with the MRCOOL DIY® 5th Gen Multi-Zone Mini Split System—the easiest and most cost-effective way to enjoy powerful, energy-efficient heating and cooling without the need for professional installation.
Three Rooms, Total Comfort: Efficiently heat or cool three separate spaces—two rooms up to 350 sq. ft. each and one room up to 500 sq. ft.—with independent temperature control for fully personalized comfort.
Designed for True DIY Installation: Skip costly labor and complicated tools. No HVAC license required—if you can handle basic hand tools, you can install this system yourself.
Fast, Hassle-Free Setup: Pre-charged Quick-Connect® line sets eliminate the need for refrigerant handling or vacuuming. Simply connect and start enjoying comfort right away.
Exceptional Energy Savings: Delivers up to 23 SEER2 cooling efficiency and 9.9 HSPF2-4 heating performance, helping reduce energy costs year-round.
Reliable in Every Season: Built to perform even in extreme cold, providing dependable heating in temperatures as low as -13°F.
Peace of Mind Warranty: Backed by a 7-Year Compressor Replacement warranty and 5-Year Parts Coverage for long-term confidence.
From scorching summer days to freezing winter nights, the MRCOOL DIY Mini Split System keeps your home comfortable while keeping energy bills in check—smart, simple, and affordable comfort made easy.
WHAT YOU GET:
MRCOOL DIY® 5th Gen 36,000 BTU 6-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI5-36HP230D-O)
MRCOOL DIY® 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O)
MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-12-HP-WMAH-230D25-O)
- REMOTE CONTROL x 3
-
PRE-CHARGED LINE SETS x 3
NOTE: Need different line set lengths? Click here to add them as add-ons.
SPECIFICATIONS:
| SYSTEM OVERVIEW |
| System Type |
Ductless Mini Split Air Conditioner & Heat Pump |
| Zones |
3 |
| Capacity |
Total: 30,000 BTU
Zone 1: 9,000 BTU
Zone 2: 9,000 BTU
Zone 3: 12,000 BTU
|
| Coverage Area |
Total: 1,200 sq. ft.
Zone 1: 350 sq. ft.
Zone 2: 350 sq. ft.
Zone 3: 500 sq. ft
|
| Refrigerant |
R-454B |
| Line Sets Included |
3 x Pre-Charged Line Sets |
| Warranty |
7 Years Compressor
5 Years Parts
|
| OUTDOOR UNIT (36K) x 1 |
| Model |
DIY-MULTI5-36HP230D-O |
| Dimensions |
37.24" W x 16.14" D x 31.89" H |
| Cooling Capacity |
34,000 BTU |
| SEER2 |
23.0 |
| EER2 |
12.0 |
| Heating Capacity |
36,000 BTU |
| HSPF2-4 |
9.9 |
| HSPF2-5 |
7.5 |
| Outdoor Noise Level |
64.0 dB(A) |
| Outdoor Operating Temperature |
Cooling: -13°F – 122°F
Heating: -13°F – 75°F
|
| Voltage |
208–230V |
| Phase |
1 |
| Cycle |
60Hz |
| Min Circuit Ampacity |
30.5A |
| Max Fuse Breaker |
35.0A |
| Weight |
169.75 lbs |
| Certifications |
ENERGY STAR Certified
AHRI Certified
UL Listed
ETL Listed
|
| INDOOR UNIT (9K) x 2 |
| Model |
DIY-09-HP-WMAH-230D25-O |
| Dimensions |
31.57" W x 7.44" D x 11.69" H |
| Mounting Type |
Wall |
| Cooling Capacity |
9,000 BTU |
| Heating Capacity |
9,000 BTU |
| Coverage Area |
151 to 350 sq. ft. |
| Liquid Line Size |
1/4" |
| Suction Line Size |
3/8" |
| 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 |
24.47 lbs |
| INDOOR UNIT (12K) x 1 |
| Model |
DIY-12-HP-WMAH-230D25-O |
| Dimensions |
31.57" W x 7.44" D x 11.69" H |
| Mounting Type |
Wall |
| Cooling Capacity |
12,000 BTU |
| Heating Capacity |
12,000 BTU |
| Coverage Area |
351 to 500 sq. ft. |
| Liquid Line Size |
1/4" |
| Suction Line Size |
3/8" |
| 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 |
24.47 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.
