MRCOOL DIY 4th Gen 54K BTU 4-Zone Mini Split with 9K + 9K + 18K + 18K Air Handlers

Upgrade your home's climate control with the MRCOOL DIY 4th Gen 54K BTU Multi-Zone Mini Split, engineered for DIY installation without the need for professional HVAC service. Designed to efficiently cool and heat four separate zones, this system includes two 9K BTU and two 18K BTU air handlers, ensuring precise temperature management across different rooms. Featuring WiFi-enabled smart control, Gold Fin® anti-corrosion protection, and an energy-efficient 20.5 SEER2 rating, this system delivers year-round comfort while reducing energy consumption.

Condenser (48K BTU)

• DIY-Friendly Installation – Pre-Charged Quick Connect Line Sets simplify the setup process.
• Gold Fin® Protection – Extends condenser lifespan by preventing corrosion, ideal for humid and coastal environments.
• Energy Efficient – 20.5 SEER2 rating and 8.5 HSPF-5 ensure reduced energy costs.
• Reliable Performance – Provides heating down to -13°F and cooling up to 122°F for all-season use.
• Extended Warranty – 7-year compressor warranty and 5-year parts warranty provide long-term reliability.

Air Handlers (9K + 9K + 18K + 18K BTU)

• Customized Temperature Control – Four independent air handlers for multi-room climate management.
• Multiple Operating Modes – Includes Cool, Heat, Auto, Dry (dehumidify), Fan-Only, Quiet, and Sleep Mode.
• Smart Home Ready – Compatible with SmartHVAC App, Amazon Alexa, and Google Assistant.
• Compact Wall Mount Design – Blends seamlessly into any interior space.
• Effortless Maintenance – Washable filters and auto-clean mode for continuous efficiency.

Pre-Charged Line Sets for Quick Installation

• No Special Tools Required – Pre-charged with R-410A refrigerant, eliminating vacuuming or extra steps.
• Leak-Proof Quick Connect – Secure fittings ensure tight, leak-free connections.
• Flexible Installation – Includes four 16 ft. 1/4 x 1/2 line sets, designed for versatile room layouts.

48K BTU Multi-Zone Condenser

• Cooling Capacity: 48,000 BTU
• Heating Capacity: 48,000 BTU
• Zone Capacity: Up to 5 zones
• Outdoor Operating Temp (Cooling): 5°F - 122°F
• Outdoor Operating Temp (Heating): -13°F - 75.2°F
• SEER2: 20.5
• EER2: 11
• HSPF-4: 11
• HSPF-5: 8.5
• Power Supply: 208V-230V/60Hz
• Minimum Circuit Ampacity: 40-60A
• Condenser Dimensions: 37.48"W x 16.34"D x 52.48"H
• Registered Warranty: 7 years on compressor, 5 years on parts

9K BTU Wall Mount Air Handlers (x2)

• Cooling Capacity: 9,000 BTU
• Heating Capacity: 9,000 BTU
• Coverage Area: 180 - 375 sq. ft. per unit
• Modes: Auto, Cool, Heat, Dry, Fan, Quiet, Sleep
• Power Supply: 208V-230V/60Hz
• Dimensions: 31.57"W x 7.44"D x 11.69"H
• Registered Warranty: 5 years on parts, 1 year on remote

18K BTU Wall Mount Air Handlers (x2)

• Cooling Capacity: 18,000 BTU
• Heating Capacity: 18,000 BTU
• Coverage Area: 501 - 750 sq. ft. per unit
• Modes: Auto, Cool, Heat, Dry, Fan, Quiet, Sleep
• Power Supply: 208V-230V/60Hz
• Dimensions: 31.57"W x 7.44"D x 11.69"H
• Registered Warranty: 5 years on parts, 1 year on remote

Line Sets

• (4) 16 ft. 1/4 x 1/2 Pre-Charged Line Sets – Compatible with 9K, 12K & 18K BTU Air Handlers
• Pre-Charged with R-410A Refrigerant
• Registered Warranty: 5 years on parts

✔ 1 x MRCOOL DIY 4th Gen 48K BTU Multi-Zone Condenser
✔ 2 x 9K BTU Wall Mount Air Handlers
✔ 2 x 18K BTU Wall Mount Air Handlers
✔ 4 x 16 ft. Pre-Charged Line Sets (1/4 x 1/2)
✔ 4 x MRCOOL Remote Controls
✔ 4 x Wall Sleeves

• DIY-Friendly Installation – Avoid expensive technician fees with Pre-Charged Quick Connect Line Sets.
• Smart Home Integration – Control temperatures remotely with WiFi, Alexa, or Google Assistant.
• Energy Efficient – 20.5 SEER2 rating reduces power consumption while delivering strong performance.
• Reliable in Any Climate – Works in extreme heat and cold to ensure comfort year-round.
• Comprehensive Warranty – 7-year compressor & 5-year parts coverage for long-lasting durability.