MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 18K + 9K + 9K + 9K Wall Mount Air Handlers - DIY5-5Z-48HP-18K18K9K9K9K

MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 18K + 9K + 9K + 9K Wall Mount Air Handlers - DIY5-5Z-48HP-18K18K9K9K9K

Take control of your home’s comfort with the MRCOOL® 5th Gen DIY® Multi-Zone Mini Split System — the ultimate solution for efficient, customizable, and true DIY-friendly heating and cooling.

This powerful 48K BTU 5-Zone system includes one 24K, one 18K and three 9K wall mounted air handlers.

Features

• Customize mini-split system: choose the perfect line set length for each zone just above the “Add to Cart” button.
• Ultra-Efficient Cooling & Heating: Enjoy up to 21.8 and 10 HSPF2-4 for energy-efficient year-round comfort.
• DIY-Friendly QuickConnect® Installation: No vacuuming or professional tools needed — pre-charged line sets make setup fast and simple.
• Smart Voice & App Control: Full control via SmartHVAC app, Alexa, Google Assistant, or included wireless remote.
• Eco-Conscious Refrigerant: Uses R-454B refrigerant with a low environmental impact.
• Industry-Leading Warranty: Includes 5-year parts, 7-year compressor, and lifetime replacement with MRCOOL® Care registration.

What our Experts Think

• Powerful 5-Zone Comfort: Five wall-mounted air handlers (18K + 18K + 9K + 9K + 9K) deliver customizable heating and cooling for multiple rooms.

• 48,000 BTU Capacity: Efficiently manages large homes or open layouts, maintaining consistent comfort throughout.

• Ductless Design: Simplifies installation and maximizes flexibility without requiring ductwork.

• Heat Pump Functionality: Provides both heating and cooling for year-round climate control.

• DIY-Friendly Setup: Homeowner-oriented installation with clear instructions reduces the need for professional help.

• Energy-Efficient Inverter Operation: Adjusts output per zone to save energy while keeping temperatures optimal.

• Smart Connectivity: WiFi-compatible and controllable via the MRCOOL app for remote operation and scheduling.

Q&A

Q: What is the MRCOOL DIY 5th Gen 5-Zone Mini Split?
A: A 48,000 BTU ductless air conditioner and heat pump system with five wall-mounted air handlers for efficient multi-zone cooling and heating.

Q: What are the air handler capacities?
A: Two 18K BTU and three 9K BTU units, offering powerful and flexible climate control across five zones.

Q: Can I install it myself?
A: Yes, it’s DIY-friendly with pre-charged line sets, eliminating the need for professional HVAC installation.

Q: Where is it best used?
A: Ideal for homes, offices, or multi-zone spaces requiring both cooling and heating with customizable comfort.

Q: Why choose the DIY5-5Z-48HP-18K18K9K9K9K model?
A: Energy-efficient, easy to install, and provides precise temperature control for each zone, ensuring comfort and savings.

Maintenance Tips

• Clean Filters Monthly: Wash or vacuum all wall unit filters to maintain airflow and efficiency.

• Keep Outdoor Condenser Clear: Remove dust, leaves, and debris to ensure optimal heat exchange.

• Inspect Refrigerant Lines: Check for leaks or damage to maintain consistent performance.

• Ensure Proper Airflow: Keep vents and surrounding areas unobstructed for balanced cooling and heating across all zones.

• Maintain Drain Lines: Clear condensate lines regularly to prevent clogs and water damage.

• Seasonal Professional Check: Schedule annual inspections for coils, electrical connections, and refrigerant levels.

• Use MRCOOL App: Monitor performance, set schedules, and receive maintenance alerts for all units.