MRCOOL® DIY® 5th Gen Multi Zone Condenser

The MRCOOL® DIY® 5th Gen Multi Zone Condenser is a 18,000 BTU 3-zone ductless mini-split air conditioner and heat pump system designed for efficient room-by-room heating and cooling. It is a strong choice for homes, additions, offices, bedrooms, garages, studios, and other spaces where traditional ductwork is not practical.

Built for the MRCOOL® DIY® 5th Gen platform, this system uses R-454B refrigerant and pre-charged QuickConnect® line set technology to simplify installation while delivering dependable year-round comfort.

Key Features

• 18,000 BTU heating and cooling capacity
• 3-zone system for independent comfort control
• Indoor air handler combination: 18K + 12K + 9K
• Included QuickConnect® line set length(s): 4 ft.
• High-efficiency inverter-driven performance
• Uses R-454B refrigerant
• Designed for DIY-friendly installation with pre-charged line set technology
• Ductless design eliminates the need for traditional ductwork
• Provides both cooling and heating from one system
• Independent room-by-room temperature control
• Compatible with MRCOOL® Smart HVAC app control where supported
• Ideal for residential multi-room comfort applications

Perfect For

• Bedrooms and master suites
• Home offices and studios
• Basements and bonus rooms
• Garages and workshops
• Additions and converted spaces
• Multi-room homes without existing ductwork
• Rooms that need independent temperature control

What's Included

• 18,000 BTU MRCOOL® DIY® 5th Gen multi-zone condenser
• Indoor air handler combination: 18K + 12K + 9K
• Pre-charged QuickConnect® line set(s): 4 ft.
• Communication wire/cable as included by the manufacturer
• Remote control(s) for included indoor unit(s)
• Manufacturer documentation included with the product

Specifications

• Model / SKU: DIY-MULTI3-18HP230D-O
• System Capacity: 18,000 BTU
• Zone Capacity: 3 zones
• Air Handler Combination: 18K + 12K + 9K
• System Type: Ductless mini-split air conditioner and heat pump
• Series: MRCOOL® DIY® 5th Gen
• Refrigerant: R-454B
• Installation Type: DIY QuickConnect® compatible
• Application: Residential multi-zone heating and cooling
• Line Set Length(s): 4 ft.

Warranty Information

• 7-year compressor warranty
• 5-year parts warranty
• Warranty coverage is provided by the manufacturer and may require product registration and proper installation according to MRCOOL® instructions.

Shipping Information

Free shipping is available on qualifying MRCOOL orders over $1,000 within the 48 contiguous United States. Orders may ship by UPS, FedEx, freight carrier, or the most economical available provider depending on product size and destination.

Freight & Delivery Policy

Large HVAC systems are delivered by curbside service only. Please inspect the shipment immediately at delivery. If visible damage is present, take photos and note the damage with the delivery driver before signing. Concealed damage should be reported to CulinaryProfis within 24 hours with clear photos and all original packaging retained.