HOT ! MRCOOL 55K 6-Zone DIY Mini Split System w/ 6K + 36K Air Handlers Two 25ft Pre-Charged Line Sets DIYM255HPW00D07

MRCOOL 55K 6-Zone DIY Mini Split System w/ 6K + 36K Air Handlers Two 25ft Pre-Charged Line Sets DIYM255HPW00D07

The MRCOOL DIYM255HPW00D07 is a high-output 55,000 BTU multi-zone DIY mini split system designed for homeowners who want maximum coverage, true DIY installation, and long-term efficiency without contractor labor costs. This system is ideal for large homes, barndominiums, workshops, and multi-room layouts where precise zoning and high capacity are essential.

At the core of the system is the MRCOOL 5th Generation DIY 55K 6-Zone condenser, paired with a 6K wall-mounted air handler for smaller spaces and a 36K wall-mounted air handler for large open areas. Together, these components provide balanced, independent comfort control across multiple zones, covering up to 1,750 square feet.

DIY QuickConnect technology, factory-sealed R-454B refrigerant, and the integrated DIYPRO cable make installation straightforward. No vacuum pump, gauges, refrigerant handling, or licensed HVAC technician is required. Once installed, the system can be controlled remotely through the MRCOOL Smart HVAC Controller app or by voice using Amazon Alexa or Google Home.

Built for both performance and durability, this system combines inverter efficiency, corrosion-resistant components, and smart controls to deliver reliable heating and cooling for years to come.

Features

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  True DIY installation with QuickConnect pre-charged line sets

  
  


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  55,000 BTU total system capacity

  
  


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  Supports up to 6 zones

  
  


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  Independent temperature control per zone

  
  


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  Smart HVAC app control

  
  


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  Voice control with Amazon Alexa and Google Home

  
  


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  Follow Me temperature sensing

  
  


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  Inverter-driven compressor for efficient operation

  
  


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  Gold Fin corrosion-resistant coating

  
  


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  ENERGY STAR and AHRI certified

  
  

Specifications

What’s Included

Outdoor Unit

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  (1) MRCOOL® DIY® 55K 6-Zone CondenserDIY-MULTI6-55HP230D-O
  

Indoor Units

• (1) MRCOOL® 6K Wall-Mount Air Handler


• (1) MRCOOL® 36K Wall-Mount Air Handler

Line Sets

• (1) 25-ft DIY® QuickConnect® Line Set (1/4 × 3/8)


• (1) 25-ft DIY® QuickConnect® Line Set (3/8 × 5/8)

Accessories

• Wireless remotes


• Mounting hardware


• MRCOOL® Smart HVAC Controller®


• Installation manual

Frequently Asked Questions (FAQ\'s)

Can I add more indoor units later?

Yes. The condenser supports up to 6 zones total if additional compatible air handlers are added.

Is this system truly DIY?

Yes. DIY® QuickConnect® technology eliminates refrigerant handling, vacuum pumps, and specialty HVAC tools.

Is R-454B better than R-410A?

Yes. R-454B offers lower global warming potential and improved efficiency.

Can I control this system remotely?

Absolutely. Use the MRCOOL® Smart HVAC Controller®, mobile app, Alexa, or Google Home.