Overview
MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18k BTU 23.9 SEER2 (6K + 12K) Mini-Split Air Conditioner and Heat Pump 230V
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, Tailored Comfort: Independently heat or cool two separate spaces — one up to 150 sq. ft. and another up to 500 sq. ft. — so each area stays exactly how you like it.
- Built for True DIY Installation: Skip contractor scheduling and specialty tools. This system is engineered for straightforward homeowner setup using basic hand tools.
- Clean, Simple Setup: Pre-charged Quick-Connect® line sets remove the need for vacuuming or refrigerant handling — connect the components and you’re ready to go.
- Energy-Efficient Performance: With cooling efficiency up to 23.9 SEER2 and heating performance up to 10 HSPF2-4, the system helps reduce year-round operating costs.
- Cold-Weather Reliability: Designed 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 added peace of mind.
Specifications
System Overview
| System Type | Ductless Mini Split Air Conditioner & Heat Pump |
| Zones | 2 |
| Total Capacity | 18,000 BTU |
| Zone Capacity | Zone 1: 6,000 BTU • Zone 2: 12,000 BTU |
| Coverage Area | Total: 650 sq. ft. • Zone 1: 150 sq. ft. • Zone 2: 500 sq. ft. |
| Refrigerant | R-454B |
| Line Sets Included | 2 × Pre-charged Quick-Connect® line sets |
| Warranty | 7-Year Compressor • 5-Year Parts |
Outdoor Unit — 18K (Qty: 1)
| Model | DIY-MULTI3-18HP230D-O |
| Dimensions (W × D × H) | 35.04" × 13.46" × 26.50" |
| Cooling Capacity | 18,000 BTU |
| SEER2 | 23.9 |
| EER2 | 13.0 |
| Heating Capacity | 18,000 BTU |
| HSPF2-4 / HSPF2-5 | 10.0 / 7.8 |
| Outdoor Noise Level | 60 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 | 16.0A |
| Max Fuse/Breaker | 20.0A |
| Weight | 101.63 lbs |
| Certifications | ENERGY STAR • AHRI • UL • ETL |
Indoor Unit — 6K (Qty: 1)
| Model | DIY-06-HP-WMAH-230D25-O |
| Dimensions (W × D × H) | 31.57" × 7.44" × 11.69" |
| Mounting Type | Wall mounted |
| Cooling Capacity | 6,000 BTU |
| Heating Capacity | 6,000 BTU |
| Coverage Area | 100–150 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 — 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 |
What’s Included
- 1 X 18K BTU Multi-Zone Condenser
- 1 X 6K BTU Air Handler
- 1 X 12K BTU 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 X Wireless Remotes
- 2 X SmartHVAC Modules
- Installation & Instruction manuals
Installation & Guides
