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MRCOOL DIY 5th Gen 9,000 BTU Ductless Wall Mounted Air Handler | 230V | Model DIY-09-HP-WMAH-230D25-O (For Multi-Zone)

SKU: DIY-09-HP-WMAH-230D25-ON/AAvailability : In StockIn StockOut of stock
Price:

$532.00

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What Size MRCOOL Mini Split Do I Need?

MRCOOL Mini Split Line Set Length Limits

MRCOOL DIY 9K BTU Air Handler 230v | Indoor Unit for 400 Sq. Ft.

Perfect for DIY Mini-Split Systems | Smart Comfort Controls Included

Complete your DIY mini-split system with the MRCOOL DIY 9K BTU Air Handler. This wall-mounted indoor unit delivers efficient heating and cooling for rooms up to 400 square feet, making it ideal for bedrooms, home offices, and small living areas. Designed for easy installation, it pairs seamlessly with MRCOOL DIY outdoor condensers using the QuickConnect® system—no special tools or HVAC experience needed.


Key Features:

✅ High-Efficiency Performance – Designed for energy savings with compatible 22.5 SEER systems.

✅ Follow Me® Comfort Technology – The included remote acts as a personal thermostat, adjusting airflow based on your location in the room.

✅ Dry Mode – Reduces humidity for improved comfort and air quality.

✅ Smart Controls – Use the wireless remote, SmartHVAC app (iOS/Android), or voice commands with Amazon Alexa & Google Assistant.

✅ DIYPro® Cable Included – Replaces electrical conduit for simpler, cleaner installation.

✅ Gold Fin® Compatible – Pairs with corrosion-resistant outdoor condensers, perfect for coastal climates.

✅ Easy DIY Installation – QuickConnect® ready (line set sold separately).


What’s Included:

  • 9K BTU Wall-Mounted Air Handler

  • Wireless Remote with Follow Me®

  • DIYPro® Cable

  • Installation Hardware

You’ll Also Need (Sold Separately):

  • MRCOOL DIY 9K BTU Outdoor Condenser

  • MRCOOL DIY QuickConnect® Pre-Charged Line Set

  • Condenser Pad or Wall Bracket

Specifications:

  • Capacity: 9,000 BTU

  • Coverage: Up to 400 sq. ft.

  • Warranty: 5-Year Parts Warranty

  • Compatibility: 5th Generation MRCOOL DIY Systems

Ideal For: Bedrooms, home offices, studio apartments, and supplemental climate control.


Ready to build your DIY mini-split system?

The MRCOOL DIY 9K BTU Air Handler is the smart, efficient indoor unit you need for custom comfort control.

🛒 Add to Cart Today – Install It Yourself This Weekend!

Looking for a complete kit? Explore the MRCOOL DIY 9K BTU Complete System Bundle which includes both the indoor and outdoor units.

ModelDIY-09-HP-WMAH-230D25-O
UPC840255587020
Product Height (in)11.7
ConfigurationWall Mounted
Product Length (in)7.4
Air Flow DirectionHorizontal
Product Width (in)31.6
Blower MotorVariable Speed
Cooling CapacityLess than 1 Ton
Electrical Phase1-Phase
Line Set Connection TypeQuick Connect
Liquid Line Size1/4 inch
Weight (lbs)24.500000
RefrigerantR-454b
SeriesDIY
Special FeaturesAlexa, Google Assistant, WiFi Capable
Suction Line Size3/8 inch
System Application TypeDuctless Split Systems
Voltage240
WarrantyLifetime, 5 Year Parts, 7 Year Compressor
California Residentssee Prop 65 WARNING

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Effective Date: April 13, 2026

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