MRCOOL DIY 36000 BTU Mini Split – 3 Ton, 20 SEER, 4-Zone, Quick Connect

MRCOOL DIY 36000 BTU 3-Ton Mini Split – 20 SEER, No-Vacuum, WiFi, 208/230V

The MRCOOL DIY 36,000 BTU is America’s largest and most popular DIY mini split, designed for open floor plans, warehouses, large living rooms, and full-floor commercial spaces up to 1,500+ square feet. MRCOOL’s patented Quick Connect fittings eliminate the need for vacuum pump and refrigerant tools, making it the only professional-grade 3-ton system any competent DIYer can install in a weekend.

• 36,000 BTU for Large Spaces: 3-ton capacity handles rooms from 1,000 to 1,500+ square feet — open plan living areas, garages, workshops, retail spaces, and first-floor whole-area coverage
• MRCOOL Quick Connect: Patented Quick Connect pre-charged refrigerant lines install without vacuum pump, manifold gauges, or HVAC license — true homeowner DIY installation
• 20 SEER Efficiency: 20 SEER inverter-driven compressor maintains precise temperature while reducing energy consumption versus standard on/off heat pump systems
• WiFi Smart Control: Built-in WiFi connects to MRCOOL Smart Home app and Amazon Alexa for remote control, scheduling, and energy monitoring from anywhere
• Heating to 5 Degrees F: Reliable heating performance down to 5 degrees F outdoor temperature — covers the vast majority of US winter climates without backup heat strips
• 208/230V Single-Phase: Standard 208/230V single-phase power requirement; requires dedicated 40-50A circuit breaker for proper operation
• Complete DIY Kit: Includes indoor air handler, outdoor compressor, pre-charged line set (25ft), mounting bracket, remote control, and all installation hardware