HOT ! MRCOOL 27K 4‑Zone DIY Mini Split System (6K + 9K + 12K) with Two 25 ft + 50 ft QuickConnect Line Sets – DIYM327HPW04D23

MRCOOL 27K 4‑Zone DIY Mini Split System (6K + 9K + 12K) with Two 25 ft + 50 ft QuickConnect Line Sets – DIYM327HPW04D23

The MRCOOL 27K 4‑Zone DIY Mini Split System (Model DIYM327HPW04D23) is engineered for homeowners seeking total comfort control with a true DIY installation experience. Built around the reliable MRCOOL DIY 5th Generation 27,000 BTU multi‑zone condenser, this all‑in‑one system efficiently heats and cools up to four independent zones, making it perfect for multiple rooms, additions, or mixed‑use spaces. With each air handler operating independently, you can customize temperature settings in bedrooms, offices, bonus rooms, and more without over‑conditioning unused areas.

Installation is streamlined and user‑friendly thanks to MRCOOL’s DIY QuickConnect technology. This eliminates the need for vacuum pumps, refrigerant charging, or costly licensed HVAC labor, saving you time and money. The package includes two 25 ft QuickConnect line sets and one extended 50 ft QuickConnect line set with integrated DIYPRO cable, giving you maximum routing flexibility for longer or more complex installations.

Premium features like Gold Fin corrosion protection, Follow Me temperature sensing, and smart home integration with the MRCOOL Smart HVAC Controller, Amazon Alexa, and Google Assistant enhance durability and everyday usability. Whether you’re upgrading your home’s comfort capabilities or installing a robust climate control solution from scratch, the MRCOOL 27K 4‑Zone DIY Mini Split System delivers professional‑grade performance with true DIY convenience.

Features

• 
  

  Designed for full‑home comfort with four independently controlled zones.

  
  


• 
  

  Includes one 6K, one 9K, and one 12K BTU wall‑mounted air handler for flexible room coverage.

  
  


• 
  

  DIY QuickConnect installation — no vacuum pumps or refrigerant charging required.

  
  


• 
  

  Two 25 ft and one 50 ft QuickConnect line sets with integrated DIYPRO cable for extended runs.

  
  


• 
  

  Smart controls compatible with MRCOOL Smart HVAC Controller, Alexa, and Google Assistant.

  
  


• 
  

  Gold Fin corrosion protection and Follow Me temperature sensing for enhanced operation.

  
  

Specifications

What’s Included 

✔ MRCOOL® DIY® 4-Zone Outdoor Condenser

• Model: DIY-MULTI4-27HP230D-O

• 27,000 BTU | 208/230V | DC Inverter Heat Pump

• Max Breaker: 35A | Min Circuit Ampacity: 30.5A

✔ (1) MRCOOL® DIY® 6K BTU Wall-Mounted Air Handler

• Model: DIY-06-HP-WMAH-230D25-O

• Ideal for rooms up to ~200 sq. ft.

✔ (1) MRCOOL® DIY® 9K BTU Wall-Mounted Air Handler

• Model: DIY-09-HP-WMAH-230D25-O

• Ideal for rooms up to ~350 sq. ft.

✔ (1) MRCOOL® DIY® 12K BTU Wall-Mounted Air Handler

• Model: DIY-12-HP-WMAH-230D25-O

• Ideal for rooms up to ~550 sq. ft.

✔ (2) MRCOOL® DIY® 25 ft QuickConnect® Line Sets

• Model: DIY25-1438-O

• Pre-charged with R-454B refrigerant

✔ (1) MRCOOL® DIY® 50 ft QuickConnect® Line Set with DIYPRO® Cable

• Model: DIY50-1438C-O

• Extended-length run with integrated communication cable

✔ Wireless remotes for each air handler

✔ DIY® QuickConnect® fittings

✔ Factory-sealed refrigerant system

Frequently Asked Questions (FAQ\'s)

Can I install this system myself?

Yes. MRCOOL® DIY® systems are designed for homeowner installation without special tools.

Do I need to vacuum or charge refrigerant lines?

No. DIY® QuickConnect® line sets are factory-sealed and pre-charged.

Can each room be controlled independently?

Yes. Each air handler functions as its own zone.

Is this system smart-home compatible?

Yes. Works with the MRCOOL® Smart HVAC Controller®, Amazon Alexa, and Google Assistant.

Is R-454B refrigerant future-compliant?

Yes. R-454B meets current and upcoming environmental regulations.