





















MRCOOL DIY Mini Split - 36,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump with 50 ft. Install Kit, DIYM336HPW02C74
FREE EXPRESS SHIPPING: Process orders in 1 business day
STRESS FREE RETURNS: 2 Year Returns
PREMIUM QUALITY: Top Tier Products, Even Better Customer Care
5 YEAR WARRANTY: We Believe In Our Products & Our Team
- Description
- Ultimate Whole-Property Comfort Solution with Maximum Reach and Balanced Power
- Boundary-Breaking Performance for Complex Properties and Mixed Space Requirements
- Maximum-Reach DIY Installation for Complex Property Configurations
- Comprehensive Property-Wide Smart Control with Zone-Specific Precision
- Shipping and Return
- COVERAGE AREA
MRCOOL DIY 36,000 BTU 3-Zone Mini Split System with 50 ft. Install Kit
Transform your entire living space with the most versatile climate control system engineered for complex property layouts and mixed space requirements. The MRCOOL DIY 36,000 BTU 3-Zone system with maximum-reach 50-foot line sets delivers unprecedented installation flexibility while perfectly matching cooling and heating power to varying room sizes. This advanced system eliminates the traditional constraints of property configuration, distance limitations, and varied space dimensions—providing custom comfort across detached buildings, multiple floors, and rooms of dramatically different sizes.
This premium solution strategically pairs a high-performance 36K BTU condenser with precision-engineered 9K and 18K BTU air handlers, all connected through industry-leading 50-foot pre-charged line sets. The extended reach allows you to position components across property boundaries and physical barriers that would stop standard systems—delivering perfectly balanced climate control to both intimate bedrooms (up to 375 sq ft) and expansive living spaces (up to 750 sq ft) regardless of their location or separation from the main system.
The revolutionary extended-reach design eliminates all traditional placement limitations while providing perfectly matched capacity for each specific zone. Instead of compromising comfort due to distance constraints or wasting energy with improperly sized units, you can now position each perfectly sized air handler exactly where needed—regardless of physical barriers, building separations, or complex structural elements. Place the outdoor unit in the most practical location while installing appropriate-sized air handlers in both compact and expansive spaces across your entire property.
You'll immediately appreciate the unmatched installation freedom when managing multi-building setups, large floor plans, or mixed-use properties with dramatically different cooling and heating requirements. The powerful 18K BTU handler maintains perfect comfort in expansive great rooms, workshops, or open-concept living areas, while the efficient 9K unit provides precisely matched performance in bedrooms, offices, or guest quarters—all managed as a cohesive system regardless of physical separation. The system's extreme cold weather performance ensures reliable heating down to -13°F, making it ideal for maintaining consistent comfort across detached spaces even during harsh winter conditions.
Overcome even the most challenging property layouts with MRCOOL's revolutionary 50-foot pre-charged quick connect technology. This maximum-reach system eliminates the need for specialized tools or complex refrigerant handling while providing the extended installation flexibility required for multi-building setups, converted outbuildings, or multi-floor installations. The straightforward connection process means you can achieve perfect comfort throughout your entire property—including detached spaces—without the $4,000-$6,000 installation fees typically charged by HVAC contractors for complex multi-building setups.
The comprehensive maximum-reach installation kit includes everything needed for a seamless setup across your entire property. The lightweight, compact air handlers mount easily on interior walls, while the robust Gold Fin® coating on the outdoor unit ensures lasting performance in any environment. Your successful DIY installation delivers professional-quality performance across property boundaries and physical barriers—providing tremendous cost savings that make comprehensive whole-property comfort affordable for virtually any homeowner.
Take command of your entire property's climate from anywhere with the intuitive SmartHVAC app that provides building-spanning control across zones of varying sizes. Create customized schedules for each uniquely sized space, monitor conditions in detached areas, and optimize energy usage across your property with just a few taps on your smartphone. The intelligent system enables perfect comfort management across multiple buildings—adjusting the efficient 9K unit in a guest cottage to minimal settings while maintaining ideal comfort in your main living areas with the powerful 18K handler.
The versatile operation modes provide optimal control tailored to each zone's specific dimensions and requirements. COOL mode delivers precisely matched cooling power based on actual room size, while HEAT mode provides proportional warmth for each space regardless of distance from the main unit. AUTO mode maintains consistent temperatures throughout your property, and DRY mode effectively manages humidity in basement areas or detached spaces prone to dampness. The energy-saving SLEEP mode intelligently adjusts temperatures overnight in each zone based on actual occupancy and usage patterns.
Experience unprecedented property-wide comfort without boundaries or compromise. The comprehensive 7-year compressor and 5-year parts warranty ensures lasting peace of mind, while the exceptional performance in extreme temperatures guarantees year-round comfort regardless of building separation or outdoor conditions. Transform your entire property with boundary-breaking climate control that extends to every corner of your living space—delivering perfectly sized comfort throughout your main residence and beyond without distance limitations or placement constraints.
Condenser (36K BTU)
- Innovative Installation: Experience seamless installation with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, ensuring a hassle-free process without needing a technician.
- Corrosion Resistance: Shield your system from coastal elements with the robust Gold Fin® condenser coating.
- Energy Efficiency: Save on energy with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating.
- Extreme Performance: Heat efficiently even when temperatures plunge to -13°F.
- Reliable Warranty: Enjoy peace of mind with a 7-year compressor warranty and a 5-year parts warranty.
Air Handler (9K BTU)
- Versatile Climate Control: Whether you're in the mood for COOL, HEAT, AUTO, DRY, or SLEEP, these Air Handlers ensure comfort year-round.
- Perfect Room Coverage: Optimized for spaces ranging from 180 to 375 square feet, perfect for smaller spaces and cozy corners.
- Smart Control Anywhere: Take command with SmartHVAC app compatibility, offering fingertip convenience from anywhere on the planet.
- Effortless Installation: The compact and lightweight design makes mounting quick and simple, minimizing installation efforts.
- Quick Connect System: With MRCOOL’s Pre-Charged Quick Connect Line Set, you can set up easily—no vacuuming or complex tools required!
Air Handler (18K BTU)
- Versatile Climate Control: Easily adjust to COOL, HEAT, AUTO, DRY, or SLEEP modes for year-round comfort.
- Perfect Room Coverage: Designed to suit spaces between 501 to 750 square feet, perfect for larger rooms and open areas.
- Smart Control Anywhere: The SmartHVAC app compatibility lets you manage your system conveniently from anywhere.
- Effortless Installation: The compact and lightweight design simplifies the mounting process significantly.
- Quick Connect System: Simplify your setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no extra tools required!
Line Set
- Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
- Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
- DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
- Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.
For Shipping & return information visit here
- Description
- Ultimate Whole-Property Comfort Solution with Maximum Reach and Balanced Power
- Boundary-Breaking Performance for Complex Properties and Mixed Space Requirements
- Maximum-Reach DIY Installation for Complex Property Configurations
- Comprehensive Property-Wide Smart Control with Zone-Specific Precision
- Shipping and Return
- COVERAGE AREA
MRCOOL DIY 36,000 BTU 3-Zone Mini Split System with 50 ft. Install Kit
Transform your entire living space with the most versatile climate control system engineered for complex property layouts and mixed space requirements. The MRCOOL DIY 36,000 BTU 3-Zone system with maximum-reach 50-foot line sets delivers unprecedented installation flexibility while perfectly matching cooling and heating power to varying room sizes. This advanced system eliminates the traditional constraints of property configuration, distance limitations, and varied space dimensions—providing custom comfort across detached buildings, multiple floors, and rooms of dramatically different sizes.
This premium solution strategically pairs a high-performance 36K BTU condenser with precision-engineered 9K and 18K BTU air handlers, all connected through industry-leading 50-foot pre-charged line sets. The extended reach allows you to position components across property boundaries and physical barriers that would stop standard systems—delivering perfectly balanced climate control to both intimate bedrooms (up to 375 sq ft) and expansive living spaces (up to 750 sq ft) regardless of their location or separation from the main system.
The revolutionary extended-reach design eliminates all traditional placement limitations while providing perfectly matched capacity for each specific zone. Instead of compromising comfort due to distance constraints or wasting energy with improperly sized units, you can now position each perfectly sized air handler exactly where needed—regardless of physical barriers, building separations, or complex structural elements. Place the outdoor unit in the most practical location while installing appropriate-sized air handlers in both compact and expansive spaces across your entire property.
You'll immediately appreciate the unmatched installation freedom when managing multi-building setups, large floor plans, or mixed-use properties with dramatically different cooling and heating requirements. The powerful 18K BTU handler maintains perfect comfort in expansive great rooms, workshops, or open-concept living areas, while the efficient 9K unit provides precisely matched performance in bedrooms, offices, or guest quarters—all managed as a cohesive system regardless of physical separation. The system's extreme cold weather performance ensures reliable heating down to -13°F, making it ideal for maintaining consistent comfort across detached spaces even during harsh winter conditions.
Overcome even the most challenging property layouts with MRCOOL's revolutionary 50-foot pre-charged quick connect technology. This maximum-reach system eliminates the need for specialized tools or complex refrigerant handling while providing the extended installation flexibility required for multi-building setups, converted outbuildings, or multi-floor installations. The straightforward connection process means you can achieve perfect comfort throughout your entire property—including detached spaces—without the $4,000-$6,000 installation fees typically charged by HVAC contractors for complex multi-building setups.
The comprehensive maximum-reach installation kit includes everything needed for a seamless setup across your entire property. The lightweight, compact air handlers mount easily on interior walls, while the robust Gold Fin® coating on the outdoor unit ensures lasting performance in any environment. Your successful DIY installation delivers professional-quality performance across property boundaries and physical barriers—providing tremendous cost savings that make comprehensive whole-property comfort affordable for virtually any homeowner.
Take command of your entire property's climate from anywhere with the intuitive SmartHVAC app that provides building-spanning control across zones of varying sizes. Create customized schedules for each uniquely sized space, monitor conditions in detached areas, and optimize energy usage across your property with just a few taps on your smartphone. The intelligent system enables perfect comfort management across multiple buildings—adjusting the efficient 9K unit in a guest cottage to minimal settings while maintaining ideal comfort in your main living areas with the powerful 18K handler.
The versatile operation modes provide optimal control tailored to each zone's specific dimensions and requirements. COOL mode delivers precisely matched cooling power based on actual room size, while HEAT mode provides proportional warmth for each space regardless of distance from the main unit. AUTO mode maintains consistent temperatures throughout your property, and DRY mode effectively manages humidity in basement areas or detached spaces prone to dampness. The energy-saving SLEEP mode intelligently adjusts temperatures overnight in each zone based on actual occupancy and usage patterns.
Experience unprecedented property-wide comfort without boundaries or compromise. The comprehensive 7-year compressor and 5-year parts warranty ensures lasting peace of mind, while the exceptional performance in extreme temperatures guarantees year-round comfort regardless of building separation or outdoor conditions. Transform your entire property with boundary-breaking climate control that extends to every corner of your living space—delivering perfectly sized comfort throughout your main residence and beyond without distance limitations or placement constraints.
Condenser (36K BTU)
- Innovative Installation: Experience seamless installation with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, ensuring a hassle-free process without needing a technician.
- Corrosion Resistance: Shield your system from coastal elements with the robust Gold Fin® condenser coating.
- Energy Efficiency: Save on energy with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating.
- Extreme Performance: Heat efficiently even when temperatures plunge to -13°F.
- Reliable Warranty: Enjoy peace of mind with a 7-year compressor warranty and a 5-year parts warranty.
Air Handler (9K BTU)
- Versatile Climate Control: Whether you're in the mood for COOL, HEAT, AUTO, DRY, or SLEEP, these Air Handlers ensure comfort year-round.
- Perfect Room Coverage: Optimized for spaces ranging from 180 to 375 square feet, perfect for smaller spaces and cozy corners.
- Smart Control Anywhere: Take command with SmartHVAC app compatibility, offering fingertip convenience from anywhere on the planet.
- Effortless Installation: The compact and lightweight design makes mounting quick and simple, minimizing installation efforts.
- Quick Connect System: With MRCOOL’s Pre-Charged Quick Connect Line Set, you can set up easily—no vacuuming or complex tools required!
Air Handler (18K BTU)
- Versatile Climate Control: Easily adjust to COOL, HEAT, AUTO, DRY, or SLEEP modes for year-round comfort.
- Perfect Room Coverage: Designed to suit spaces between 501 to 750 square feet, perfect for larger rooms and open areas.
- Smart Control Anywhere: The SmartHVAC app compatibility lets you manage your system conveniently from anywhere.
- Effortless Installation: The compact and lightweight design simplifies the mounting process significantly.
- Quick Connect System: Simplify your setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no extra tools required!
Line Set
- Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
- Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
- DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
- Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.
For Shipping & return information visit here
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Process orders within 1-2 days

Get Covered for (730 days) Returns

Top Tier Products, Even Better Customer Care

We Believe In Our Products & Our Team