Product Description
Model: DIYM327HPW00D21
The MRCOOL® DIYM327HPW00D21 is a top-tier 27,000 BTU multi-zone DIY® mini split system engineered for homeowners who want professional-grade comfort, long-term efficiency, and full control—without hiring an HVAC contractor.
This bundle is built around MRCOOL’s proven DIY® platform, combining a 27K 4-zone outdoor condenser with three 6,000 BTU wall-mounted air handlers. Each indoor unit is paired with a 25-foot pre-charged DIY® QuickConnect® line set, giving you maximum flexibility for longer or more complex installs while maintaining factory-sealed reliability.
Using R-454B refrigerant, DC inverter technology, and a Gold Fin® corrosion-resistant coil, this system delivers whisper-quiet performance, lower energy bills, and dependable comfort year-round. Control everything through the MRCOOL® Smart HVAC Controller®, the mobile app, or hands-free voice control using Amazon Alexa or Google Assistant.
This is a true DIY® multi-room solution—built to last, easy to install, and designed to outperform traditional contractor-installed systems
27K MRCOOL® DIY® MULTI-ZONE CONDENSER
Model: DIY-MULTI4-27HP230D-O
The heart of this bundle is the MRCOOL® DIY® 27K 4-zone condenser, capable of independently managing up to four indoor zones with precision inverter control.
Key Highlights
Supports up to 4 zones
High-efficiency SEER2-rated performance
DC inverter compressor for smooth, quiet operation
Factory-sealed DIY® QuickConnect® ports
Gold Fin® outdoor coil for coastal & high-humidity protection
ENERGY STAR® & AHRI Certified
Electrical Requirements
Minimum Circuit Ampacity: 20A
Maximum Fuse / Breaker: 25A
️ THREE 6K DIY® WALL-MOUNT AIR HANDLERS
Model: DIY-06-HP-WMAH-230D25-O
This bundle includes three 6,000 BTU indoor units, perfect for bedrooms, offices, nurseries, guest rooms, or studios up to ~200 sq. ft. each.
Features
Follow Me® technology for accurate comfort at the remote
Dry Mode for humidity control
Ultra-quiet operation
Multiple fan speeds + auto mode
Washable air filters
Full control via remote, app, or voice
Each zone operates independently, allowing different temperatures in every room for maximum efficiency and comfort.
THREE 25-FT DIY® QUICKCONNECT® LINE SETS
Model: DIY25-1438-O
This bundle upgrades you to three 25-foot line sets, ideal when indoor units are farther from the condenser.
Line Set Details
25 ft length for extended installs
Factory-sealed R-454B refrigerant
DIY® QuickConnect® fittings
Integrated DIYPRO® cable
No vacuuming, no brazing, no refrigerant tools
WHAT’S INCLUDED — DIYM327HPW00D21
Outdoor Unit
(1) MRCOOL® DIY® 27K 4-Zone Condenser Model: DIY-MULTI4-27HP230D-O
Indoor Units
(3) MRCOOL® 6K Wall-Mounted Air Handlers Model: DIY-06-HP-WMAH-230D25-O
Line Sets
(3) MRCOOL® 25 ft DIY® QuickConnect® Line Sets w/ DIYPRO® Cable Model: DIY25-1438-O
Accessories
Wireless remotes
Wall mounting hardware
MRCOOL® Smart HVAC Controller® module
Installation manuals
Smartphone not included.
❓ FAQ — Frequently Asked Questions
Can each room have its own temperature?
Yes. Each zone operates independently through the MRCOOL® Smart HVAC Controller®.
Is this really a DIY system?
Yes. The DIY® QuickConnect® design eliminates vacuum pumps, gauges, brazing, and refrigerant handling.
Why are 25-ft line sets included?
They allow greater flexibility for condenser placement without compromising performance or warranty. You can always go longer or shorter.
Is this system energy efficient?
Extremely. DC inverter technology and R-454B refrigerant significantly reduce energy consumption.
Why Buy From MRCOOL DIRECT?
When you order from MRCOOL Direct, you get:
✅ Authorized MRCOOL dealer – Your warranty is protected
✅ Factory-fresh units – No refurbished or mystery sources
✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
✅ Financing options – Make high-efficiency comfort more affordable
✅ Real product support – Help with sizing, line set selection, and DIY questions
✅ No third-party marketplace middlemen – Just genuine MRCOOL systems from a trusted dealer
BUY DIRECT!
Feel Free to call us anytime. Family Friendly help just a dial away. We love talking HVAC615-553-8118
Family owned & USAs #1 MRCOOL Authentication Dealer.
Brand:MRCOOL®Category:3 Zones/RoomsSKU:DIYM327HPW00D21Tags:27K Mini Split, 4 Zone Mini Split, 6K Air Handler, DIY, DIY 5th Gen, DIY Mini Split, DIY Multi Zone, DIY QuickConnect, DIY Series, DIYM327HPW00D21, DIYPRO cable, Follow Me, Gold Fin, MRCOOL, MRCOOL Direct, MRCOOL DIY, MULTI ZONE, Pre-Charged R-454B, R-454B, R-454B refrigerant, R454B, Smart HVAC