MRCOOL DIY® 5th Gen E Star Single Zone Mini Split Systems
Experience year-round heating and cooling with the MRCOOL DIY® 5th Gen E Star Single Zone Mini Split systems, designed for effortless, tool-free installation. These high-performance HVAC units deliver efficient climate control across a range of spaces—from cozy rooms to larger living areas—offering capacities from 9,000 to 36,000 BTU. Equipped with the innovative QuickConnect® line set pre-charged with eco-friendly R-454B refrigerant, and wireless control options including the SmartHVAC app and voice command compatibility, these units provide customizable comfort tailored to your needs. Backed by industry-leading warranties, the MRCOOL DIY® line combines convenience, sustainability, and reliability for a premium HVAC solution.
Features
Effortless DIY Installation
Tool-free setup with no prior HVAC experience required. The pre-charged QuickConnect® line set and DIYPRO® cable eliminate vacuum pumps and conduit wiring.
Eco-Friendly Refrigerant
Uses R-454B refrigerant, reducing environmental impact with a lower Global Warming Potential (GWP) compared to older refrigerants like R-410A.
Wireless and Smart Controls
Control your system via the included remote, SmartHVAC app (iOS & Android), or voice commands with Amazon Alexa and Google Assistant for seamless operation.
Advanced Comfort Features
Includes “Follow Me” function that adjusts airflow based on the remote’s location and Dry Mode for dehumidification and improved indoor air quality.
Durability and Reliability
Gold Fin® condenser coating ensures corrosion resistance, especially ideal for coastal environments. Certified safety and performance with UL, ETL, AHRI, and Energy Star listings.
Benefits
Customizable Climate Control
Choose from five BTU options to perfectly match your room size and heating/cooling needs, from small rooms (200 sq ft) to larger spaces up to 1,500 sq ft.
Energy Efficiency & Cost Savings
High SEER2 ratings and inverter-driven rotary compressors optimize energy use, lowering utility bills without sacrificing comfort.
Convenient Installation & Maintenance
QuickConnect® line sets and DIYPRO® cables simplify installation and reduce service time, saving you money and hassle.
Smart Home Integration
Compatible with popular smart home ecosystems, enabling effortless voice and mobile app control from anywhere.
Trusted Warranty Coverage
Includes 7-year compressor warranty, 5-year parts warranty, and extended limited lifetime replacement options when registered with MrCool Care Program.
Voltage and Installation Recommendations
The 9,000 BTU and 12,000 BTU models operate on standard 115V electrical systems, ideal for smaller rooms or spaces with existing residential wiring. For larger areas requiring 18,000 BTU and above, the 230V models offer higher capacity and efficiency, suitable for whole-room climate control in mid to large-sized spaces. Always consult a licensed electrician to ensure proper electrical compatibility for your installation.
Specifications Comparison
Dimensions & Weight
| Specification |
9,000 BTU (115V) |
12,000 BTU (115V) |
18,000 BTU (230V) |
24,000 BTU (230V) |
36,000 BTU (230V) |
| Condenser Dimensions (W×D×H) |
30.12" x 11.93" x 21.85" |
30.12" x 11.93" x 21.85" |
35.04" x 13.46" x 26.50" |
37.24" x 16.14" x 31.89" |
37.24" x 16.14" x 31.89" |
| Air Handler Dimensions (W×D×H) |
31.57" x 7.44" x 11.69" |
31.57" x 7.44" x 11.69" |
42.52" x 8.90" x 13.19" |
42.52" x 8.90" x 13.19" |
49.57" x 11.10" x 14.25" |
| Condenser Weight |
65.48 lbs / 29.7 kg |
65.48 lbs / 29.7 kg |
93.48 lbs / 42.4 kg |
112.8 lbs / 55.7 kg |
152.12 lbs / 69 kg |
| Air Handler Weight |
24.91 lbs / 11.3 kg |
24.91 lbs / 11.3 kg |
35.49 lbs / 16.1 kg |
35.49 lbs / 16.1 kg |
48.73 lbs / 22.1 kg |
Capacity & Performance
| Specification |
9,000 BTU (115V) |
12,000 BTU (115V) |
18,000 BTU (230V) |
24,000 BTU (230V) |
36,000 BTU (230V) |
| Zone Capacity |
1 |
1 |
1 |
1 |
1 |
| Cooling Capacity |
9,000 BTU |
12,000 BTU |
18,000 BTU |
23,000 BTU |
36,000 BTU |
| Heating Capacity |
10,000 BTU |
12,000 BTU |
18,000 BTU |
23,000 BTU |
36,000 BTU |
| EER2 |
14 |
12.5 |
13.7 |
12.7 |
8.5 |
| SEER2 |
23.6 |
23.5 |
22.5 |
22.7 |
18 |
| HSPF2-4 |
11.5 |
10.2 |
11.5 |
9.6 |
8.5 |
| HSPF2-5 |
8.6 |
7.6 |
8.5 |
7.1 |
6.5 |
| Coverage Area |
200 - 350 sq ft. |
350 - 500 sq ft. |
500 - 750 sq ft. |
750 - 1,000 sq ft. |
1,000 - 1,500 sq ft. |
| Indoor Noise Level (Hi/Mi/Lo) |
43.0 / 39.5 / 33.5 dB(A) |
43.0 / 39.5 / 33.5 dB(A) |
54.5 / 44.5 / 40.5 dB(A) |
54.0 / 48.0 / 43.0 dB(A) |
55.5 / 49.5 / 43.5 dB(A) |
| Outdoor Noise Level |
54 dB(A) |
54 dB(A) |
58.5 dB(A) |
58.5 dB(A) |
60.5 dB(A) |
Electrical Requirements
| Specification |
9,000 BTU (115V) |
12,000 BTU (115V) |
18,000 BTU (230V) |
24,000 BTU (230V) |
36,000 BTU (230V) |
| Voltage |
115V |
115V |
208-230V |
208-230V |
208-230V |
| Phase |
1 |
1 |
1 |
1 |
1 |
| Cycle |
60 Hz |
60 Hz |
60 Hz |
60 Hz |
60 Hz |
| Max Fuse Breaker |
20A |
20A |
20A |
25A |
35A |
| Min Circuit Ampacity |
18A |
18A |
18A |
24A |
33A |
Refrigerant & Piping
| Specification |
9,000 BTU (115V) |
12,000 BTU (115V) |
18,000 BTU (230V) |
24,000 BTU (230V) |
36,000 BTU (230V) |
| Refrigerant Type |
R-454B |
R-454B |
R-454B |
R-454B |
R-454B |
| Refrigerant Volume |
30.34 oz |
30.34 oz |
44.80 oz |
67.37 oz |
109.70 oz |
| Liquid Line Size |
1/4" |
1/4" |
1/4" |
3/8" |
3/8" |
| Suction Line Size |
3/8" |
3/8" |
1/2" |
5/8" |
5/8" |
| Max Line Set Length |
82 ft. |
82 ft. |
98.4 ft. |
164 ft. |
213.2 ft. |
Features
| Feature |
All Models |
| 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 |
Product Manual
Product Warranty
MRCOOL Limited Lifetime Warranty
LIMITATIONS OF WARRANTIES
Q1 How do I register my warranty?
Answer: Go to here to file your warranty.
Q2 How do I find the AHRI number of my unit?
Answer: You can find links to the AHRI certificates on the documentation page at mrcool.com/documentation.
