Mr. Cool DIY 9,000 BTU 5th Gen Multi-Zone One-Way Ceiling Cassette- R454B

MRCOOL DIYCASSETTE09HP-230D25-O DIY® OuttaSight® 9K BTU R-454B One-Way Ceiling Cassette Mini-Split Air Handler
The DIYCASSETTE09HP-230D25-O 5th Generation MRCOOL® DIY® OuttaSight® 9K BTU One-Way Ceiling Cassette delivers quiet, efficient comfort for spaces up to 400 sq ft. Designed for quick, tool-free DIY installation, it fits neatly between standard 16” ceiling joists—including pre-manufactured I-joists—for a clean, flush-mounted finish without ductwork or wall units. Perfect for multi-zone systems in both new builds and retrofits, it pairs seamlessly with the MRCOOL® DIY® Quick Connect® line set, pre-charged with eco-friendly R-454B refrigerant to eliminate vacuuming. Advanced filtration enhances indoor air quality, while the Elevation function lowers the panel for easy filter maintenance. With whisper-quiet operation and versatile controls—including wireless remote, SmartHVAC app, and voice integration with Alexa and Google Assistant—this unit offers flexible, personalized comfort. Backed by a limited lifetime warranty, plus 7-year compressor and 5-year parts coverage, it ensures long-term performance and reliability.

General Information
System Type: One-way ceiling cassette mini-split air handler
Model: DIYCASSETTE09HP-230D25-O – MRCOOL® DIY® OuttaSight® 9K BTU
Capacity: 9,000 BTU Cooling / Heating (year-round comfort)
Room Size: Up to 400 sq ft
Operating Modes: Heating & Cooling
Refrigerant: R-454B (pre-charged Quick Connect® line set compatible)

Key Features
Flush-Mount Design: Fits between 16” joists, including I-joists, for a discreet ceiling installation
DIY Installation: No specialized tools needed; perfect for new construction or retrofits
Eco-Friendly Refrigerant: R-454B for reduced environmental impact
Advanced Filtration: Improves indoor air quality
Easy Maintenance: Elevation function for quick filter access
Smart Controls: Remote, app, and voice control via Alexa & Google Assistant
Quiet Operation: Minimal noise output for added comfort
Warranty Protection: Limited lifetime warranty, 7-year compressor, 5-year parts

Included Components
DIYCASSETTE09HP-230D25-O – MRCOOL® DIY® OuttaSight® 9K BTU ceiling cassette
Wireless remote control

Ideal For
Small to medium-sized rooms, offices, or other spaces needing discreet, efficient heating and cooling without wall-mounted units or ductwork. Excellent for DIY installers seeking smart, reliable performance.