MRCOOL DIY® 5th Gen E Star 9,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-09-HP-WM-115D25-O
The MRCOOL DIY® 5th Generation 9,000 BTU Single Zone Mini Split System is a high-efficiency heating and cooling solution designed for simple DIY installation and year-round climate control. Engineered with advanced technology and built for durability, this system is ideal for small to mid-sized spaces up to 400 sq. ft., offering whisper-quiet operation, customizable comfort, and smart home compatibility.
Designed for Easy DIY Installation
Unlike traditional mini-split systems, this unit features a pre-charged 25-ft QuickConnect® Line Set, allowing for installation without special tools, vacuum pumps, or professional HVAC assistance. The DIYPRO® Cable ensures a secure, hassle-free electrical connection between the indoor and outdoor units, making setup accessible even for first-time installers.
Advanced Energy Efficiency & Cost Savings
With an impressive 23.6 SEER rating, the MRCOOL DIY® Mini Split is Energy Star certified, helping to lower electricity costs while reducing environmental impact. The variable-speed inverter compressor optimizes performance by adjusting output based on demand, ensuring maximum efficiency with minimal energy waste.
Smart Climate Control & Convenience
- Multi-Platform Smart Integration: Control your system remotely using the MRCOOL SmartHVAC app, Amazon Alexa, or Google Assistant for seamless voice or mobile app adjustments.
- Wireless Remote Control: Adjust temperature, fan speed, and mode from anywhere in the room.
- Follow Me® Technology: The system detects the remote’s location to maintain precise comfort levels where you need it most.
- Custom Scheduling: Set cooling and heating schedules to match your lifestyle and energy-saving goals.
Reliable Year-Round Comfort
- Cooling Capacity: 9,000 BTU (Ideal for rooms up to 400 sq. ft.)
- Heating Capacity: 9,000 BTU, making it a true all-season system with high-efficiency performance in both hot and cold conditions.
- Dry Mode: Functions as a dehumidifier, reducing excess moisture to improve indoor air quality and comfort.
Durability & Weather Resistance
- Gold Fin® Corrosion Protection: The outdoor condenser is coated with anti-corrosion technology, extending its lifespan and making it suitable for coastal or high-humidity environments.
- Auto Restart & Sleep Mode: Protects against power outages and optimizes comfort for energy-efficient nighttime operation.
Technical Specifications
- Cooling Efficiency: 23.6 SEER2
- Heating Efficiency: 10.3 HSPF2
- Voltage: 115V (Standard residential electrical compatibility)
- Line Set Length: 25-ft Pre-Charged QuickConnect® (Refrigerant: R-454B)
- Indoor Unit Sound Level: As low as 24.5 dB for quiet operation
- Airflow Control: Adjustable 4-way directional louvers
What’s Included?
✔ 9,000 BTU MRCOOL DIY® 5th Gen Indoor Air Handler (115V)
✔ 9,000 BTU MRCOOL DIY® 5th Gen Outdoor Condenser (115V)
✔ 25-ft Pre-Charged QuickConnect® Line Set (R-454B Refrigerant)
✔ DIYPRO® Cable for easy electrical connections
✔ Wireless Remote Control
✔ MRCOOL SmartHVAC USB Controller® (Compatible with Google Assistant & Amazon Alexa)
Smart phone not included.
Industry-Leading Warranty for Peace of Mind
- 7-Year Compressor Coverage
- 5-Year Parts Protection
- eligible for the MRCOOL® Care Program enrollment
Experience effortless comfort, energy savings, and smart home convenience with the MRCOOL DIY® 5th Generation 9,000 BTU Mini Split System—a powerful, easy-to-install, and cost-effective HVAC solution designed with homeowners in mind.
SPECIFICATIONS & DIMENSIONS
Dimensions & Weight
| Condenser Dimensions | 30.12 W" x 11.93 D" x 21.85 H" |
|---|---|
| Air Handler Dimensions | 31.57 W" x 7.44 D" x 11.69 H" |
| Condenser Weight | 65.48 lbs / 29.7 kg |
| Air Handler Weight | 24.91 lbs / 11.3 kg |
| Capacity & Performance | |
| Zone Capacity | 1 |
| Cooling Capacity | 9,000 BTU |
| Outdoor Operating Temperature (Cooling) | -13°F - 122°F |
| EER2 | 14 |
| SEER2 | 23.6 |
| Heating Capacity | 10,000 BTU |
| Outdoor Operating Temperature (Heating) | -13°F - 75°F |
| HSPF2-4 | 11.5 |
| HSPF2-5 | 8.6 |
| Coverage Area | 200 - 350 sq ft. |
| Outdoor Noise Level | 54 dB(A) |
| Indoor Noise Level (Hi/Mi/Lo) | 43.0/39.5/33.5/24.0/18.0 dB(A) |
| Electrical Requirements | |
| Voltage | 115V |
| Phase | 1 |
| Cycle | 60 Hz |
| Max Fuse Breaker | 20A |
| Min Circuit Ampacity | 18A |
| Refrigerant & Piping | |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 30.34 oz |
| Liquid Line Size | 1/4" |
| Suction Line Size | 3/8" |
| Max Line Set Length | 82 ft. |
| Features | |
| Inverter | DC |
| Compressor Type | Rotary |
| Fan Only Option | Yes |
| Quiet Mode | Yes |
| Auto Cool | Yes |
| Wifi Compatibility | Yes |
| App Compatibility | Yes |
| Works with IOS | Yes |
| Works with Android | Yes |
| Remote Control Included | Yes |
| Certifications & Warranty | |
| Certifications | UL Listed, ETL Listed, Energy Star Certified, AHRI Certified |
| Warranty | 7 Years Compressor 5 Years Parts |
What's the difference between the 5th Gen and 4th Gen?
The 5th Gen MRCOOL DIY® Mini Split offers several key upgrades over the 4th Gen, focusing on efficiency, advanced technology, and eco-friendliness.
Here’s what’s new with the 5th Gen:
- Next-Gen R-454B Refrigerant: A more environmentally friendly refrigerant with lower global warming potential (GWP), compliant with the latest HVAC regulations.
- Higher Energy Efficiency: Improved SEER2 ratings for greater energy savings and optimized performance.
- Enhanced System Reliability: Upgraded components for better heating and cooling performance.
Can I install it myself, or do I need a professional?
The MRCOOL DIY system is designed for homeowners and doesn’t require HVAC tools. You can install the indoor and outdoor units yourself using the pre-charged Quick Connect® lines. However, a licensed electrician is required for the electrical hookup to ensure safety and code compliance
Does it work in cold weather?
Does it heat as well as cool?
Yes. All 5th Gen models are heat pumps, providing both heating and cooling for year-round comfort.
Is it Wi-Fi compatible?
Yes. The MRCOOL SmartHVAC app allows smartphone control and works with Amazon Alexa and Google Assistant.
What is the warranty?
The MRCOOL 5th Generation DIY Mini-Split systems offer the following warranty coverage:
- 7-Year Compressor Replacement Warranty: This warranty ensures that if the compressor fails within the first seven years, MRCOOL will provide a replacement.
- 5-Year Parts Warranty: This warranty covers all parts of the system for five years from the date of purchase.