MRCOOL DIY 5th Gen E Star 12K BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-O
$2,359.00
MRCOOL® 12k DIY 5th Generation Mini-split Air Handler & Condenser 115v
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Introducing the 5th Generation MRCOOL DIY 12K BTU Single Zone Mini-Split Air Handler, designed to deliver efficient heating and cooling for areas between 350 and 500 square feet. With a straightforward installation process, this unit includes a 25-foot QuickConnect line set and DIYPRO cable, allowing for a hassle-free setup without the need for specialized tools. Advanced control options, including a wireless remote, SmartHVAC app, and voice commands, provide customized comfort at your fingertips. Built for energy efficiency and long-term reliability, this system is supported by an industry-leading warranty.
- Effortless DIY Installation:Â Designed for quick and simple setup without requiring prior experience or specialized tools.
- QuickConnect Line Set:Â Pre-charged with R-454B refrigerant, allowing for a vacuum-free installation process.
- Eco-Conscious Refrigerant:Â Utilizes R-454B refrigerant, which has a lower Global Warming Potential (GWP) than R-410A, reducing environmental impact while enhancing efficiency.
- Durable DIYPRO Cable:Â Replaces traditional electrical conduit, providing added protection against outdoor elements and wildlife interference.
- Versatile Control Options:Â Adjust settings using the included remote, SmartHVAC app (compatible with Apple and Android devices), or voice commands via Amazon Alexa and Google Assistant.
- Follow Me Function: Optimizes airflow by adjusting temperature based on the remote’s location for consistent comfort.
- Dry Mode:Â Helps regulate humidity by reducing excess moisture, improving indoor air quality.
- Corrosion-Resistant Protection:Â Gold Fin condenser enhances durability, making it ideal for coastal environments.
- Comprehensive Warranty Coverage:Â Backed by a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty for added peace of mind.
- Certified Performance:Â Intertek-listed (5031495) to meet stringent safety and reliability standards.
This system provides an ideal solution for homeowners seeking a reliable, energy-efficient climate control option with an easy installation process and advanced comfort features.
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Product Overview
   DIY Installation      Â
  Wall Mounted                      Â
   Number of Zones: 1.   Â
  Voltage: 115V    Â
  Outdoor Operating Temp (Cool): -13°F to 122°F   Â
  Outdoor Operating Temp (Heat): -13°F to 75.2°F
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What's Included
Air Handler

Condenser

Line Set

Wall Sleeve

Communication Wire

Remote Control

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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 12,000 BTU EER2 12.5 SEER2 23.5 Heating Capacity 12,000 BTU HSPF2-4 10.2 HSPF2-5 7.6 Coverage Area 350 – 500 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
When considering the appropriate cooling or heating solution for your space, it’s crucial to assess the square footage to determine the required BTUs accurately. Our coverage chart simplifies this process:
- 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 other factors, such as insulation quality, ceiling height, and the presence of appliances, can influence performance. For personalized assistance, feel free to reach out to our knowledgeable Sales Team.
- Square Feet: 180-375
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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.



















