Overview
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 36,000 BTU 23 SEER2 (12K + 18K) Mini-Split Air Conditioner and Heat Pump 230V – Includes Line Sets
Take command of your indoor comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — a practical, high-efficiency solution built to deliver powerful heating and cooling without the cost or complexity of professional installation.
- Two Rooms, Customized Comfort: Independently heat or cool two separate spaces — one up to 500 sq. ft. and another up to 750 sq. ft. — so each area stays exactly how you like it.
- Designed for True DIY Installation: Skip contractor scheduling and specialty tools — this system is engineered for straightforward homeowner installation using basic hand tools.
- Fast, Clean Setup: Pre-charged Quick-Connect® line sets eliminate vacuuming and refrigerant handling, making installation simple and hassle-free.
- High-Efficiency Performance: With cooling efficiency up to 23 SEER2 and heating performance up to 9.9 HSPF2-4, the system helps reduce year-round energy costs.
- Cold-Climate Reliability: Built to maintain dependable heating performance in temperatures as low as -13°F.
-
Warranty Confidence: Backed by a 7-year compressor replacement warranty and 5-year parts coverage for long-term peace of mind.
Specifications
System Overview
| System Type | Ductless Mini Split Air Conditioner & Heat Pump |
| Zones | 2 |
| Total Capacity | 30,000 BTU |
| Zone Capacity | Zone 1: 12,000 BTU • Zone 2: 18,000 BTU |
| Coverage Area | Total: 1,250 sq. ft. • Zone 1: 500 sq. ft. • Zone 2: 750 sq. ft. per zone |
| Refrigerant | R-454B |
| Line Sets Included | None — choose line sets separately |
| Warranty | 7-Year Compressor • 5-Year Parts |
Outdoor Unit — 36K (Qty: 1)
| Model | DIY-MULTI5-36HP230D-O |
| Dimensions (W × D × H) | 37.24" × 16.14" × 31.89" |
| Cooling Capacity | 34,000 BTU |
| SEER2 | 23.0 |
| EER2 | 12.0 |
| Heating Capacity | 36,000 BTU |
| HSPF2-4 / HSPF2-5 | 9.9 / 7.5 |
| Outdoor Noise Level | 64 dB(A) |
| Operating Temperature | Cooling: -13°F to 122°F • Heating: -13°F to 75°F |
| Electrical | 208–230V • 1 Phase • 60Hz |
| Min Circuit Ampacity | 30.5A |
| Max Fuse/Breaker | 35.0A |
| Weight | 169.75 lbs |
| Certifications | ENERGY STAR • AHRI • UL • ETL |
Indoor Unit — 12K (Qty: 1)
| Model | DIY-12-HP-WMAH-230D25-O |
| Dimensions (W × D × H) | 31.57" × 7.44" × 11.69" |
| Mounting Type | Wall mounted |
| Cooling Capacity | 12,000 BTU |
| Heating Capacity | 12,000 BTU |
| Coverage Area | 351–500 sq. ft. |
| Liquid Line Size | 1/4" |
| Suction Line Size | 3/8" |
| Operating Modes | Auto • Cool • Heat • Fan Only • Dry (Dehumidify) • Sleep |
| Weight | 24.47 lbs |
Indoor Unit — 18K (Qty: 1)
| Model | DIY-18-HP-WMAH-230D25-O |
| Dimensions (W × D × H) | 42.52" × 8.90" × 13.19" |
| Mounting Type | Wall mounted |
| Cooling Capacity | 18,000 BTU |
| Heating Capacity | 18,000 BTU |
| Coverage Area | 501–750 sq. ft. |
| Liquid Line Size | 1/4" |
| Suction Line Size | 1/2" |
| Operating Modes | Auto • Cool • Heat • Fan Only • Dry • Sleep |
| Weight | 35.49 lbs |
What’s Included
- (1) 36K BTU Multi-Zone DIY Outdoor Condenser
- (1) 12K BTU Indoor Air Handler
- (1) 18K BTU Indoor Air Handler
- Pre-Charged Quick Connect® Line Sets for each indoor air handler (length per selected option)
- DIYPro® communication wiring is included for each indoor air handler (one per zone)
- Condensate drain hose (included)
- (2) Wireless Remotes
- (2) SmartHVAC Modules
- Installation & Instruction manuals
Installation & Guides
