MRCOOL DIY 5th Gen E Star 9K BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-09-HP-WM-115D25-O
$2,329.00
MRCOOL® 9k DIY 5th Generation Mini-split Air Handler & Condenser 115v
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Presenting the 5th Generation MRCOOL DIY 9K BTU Single Zone Mini-Split Air Handler, designed to provide efficient heating and cooling for areas ranging from 200 to 350 square feet. This unit offers a hassle-free installation process with a 25-foot QuickConnect line set and DIYPRO cable, allowing for a straightforward setup without the need for specialized tools. Control your indoor climate effortlessly using the wireless remote, SmartHVAC app, or voice commands. Built for durability and energy efficiency, this system is backed by a leading warranty for long-term reliability.
- Simplified DIY Installation:Â No specialized tools or prior experience required for a seamless setup.
- QuickConnect Line Set:Â Pre-charged with R-454B refrigerant, allowing for a vacuum-free installation process.
- Eco-Friendly Refrigerant:Â Utilizes R-454B refrigerant, which offers a lower Global Warming Potential (GWP) compared to R-410A, minimizing environmental impact while enhancing energy efficiency.
- DIYPRO Cable:Â Designed to replace traditional electrical conduit, providing superior durability against outdoor conditions and wildlife interference.
- Multiple Control Options:Â Adjust settings using the included remote, SmartHVAC app (compatible with Apple and Android), or voice control through Amazon Alexa and Google Assistant.
- Follow Me Function:Â Optimizes airflow by adjusting temperature based on the location of the remote, ensuring consistent comfort.
- Dry Mode:Â Functions as a dehumidifier to regulate indoor moisture levels and enhance air quality.
- Corrosion-Resistant Protection:Â Gold Fin condenser ensures long-lasting performance, particularly in coastal environments.
- Comprehensive Warranty Coverage:Â Includes a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty for peace of mind.
- Certified Performance:Â Intertek-listed (5031495) to meet stringent safety and reliability standards.
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Product Overview
  Covers 350 sq. ft.    Â
 DIY Installation
  Wall Mounted      Â
  Number of Zones: 1
  Voltage: 110 to 120
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Specifications and 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 EER2 14 SEER2 23.6 Heating Capacity 10,000 BTU 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 20 A Min Circuit Ampacity 18 A 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
Extended Limited Lifetime ReplacementNotes:
• If the original owner does not register the unit, warranty defaults to standard 5 year parts / 7 year compressor.
• The original, registered owner must be enrolled in the MrCool Care Program every year to qualify for the 7 year full unit replacement for compressor failure and lifetime compressor replacement. -
Coverage Area
For optimal cooling or heating, refer to our coverage chart to determine the appropriate BTU capacity based on the square footage of your space:
- Square Feet: 180-375 | BTU = 9K
- Square Feet: 376-500 | BTU = 12K
- Square Feet: 501-750 | BTU = 18K
- Square Feet: 751-1,000 | BTU = 24K
- Square Feet: 1,001-1,500 | BTU = 36K
Keep in mind that additional factors such as insulation, ceiling height, and the presence of appliances may impact performance. For personalized assistance, feel free to reach out to our Sales Team.
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Handling Line Sets
When installing your MRCOOL system, handle refrigerant lines carefully to ensure optimal performance and prevent damage.
Bending the Copper Lines: Maintain a minimum 4-inch bend radius and use smooth curves instead of sharp angles to protect the lines and ensure proper refrigerant flow.
Avoid Repeated Bending: Bending copper lines more than three times can harden and weaken them, increasing the risk of breakage. Handle with care and minimize adjustments.
For best results, use gradual bends and consult a licensed professional or our support team if needed.



















