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MR COOL 24k-BTU 18 SEER2 Central Ducted Heat Pump AC (-5Β°F) 10 EER/9 HSPF (R454B)

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In Stock MCSHV8M2421BB

Introducing the MR COOL 24,000 BTU TruInverter Central Split AC, your go-to solution for year-round comfort! This high-efficiency 2 ton heat pump is designed to heat and cool your space efficiently, operating flawlessly in temperatures as low as -5 F and up to a scorching 125 F. With a robust 10 EER and 9 HSPF rating, this 24000 BTU heat pump ensures you save on energy costs while enjoying a cozy environment. The system includes an air handler unit and a heat pump condenser, making installation a breeze. Plus, its universal 24V "Free Match" versatility means no complicated wiring is needed, and it pairs effortlessly with most standard thermostats. The flexible 4-way multi-poise layout allows it to fit seamlessly into any home. Upgrade your comfort with the MR COOL TruInverter and experience the perfect balance of performance and reliability!

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Description

MR COOL Central Split Heat Pump

This 24000 Btu MR COOL Central AC Includes:

*(1) Air Handler Unit + Thermostat
*(1) (-5°F) Heat Pump Condenser 

∼Heats & Cools∼ 

-5° ~ 125° F

Power up your air with the 24K BTU MRCOOL TrueInverter Central Heat Pump, the ultimate blend of high-efficiency performance and rugged reliability. Engineered to withstand intense heatwaves and deep freezes alike, the Signature Series system keeps your indoor space perfectly comfortable down to a frigid -5°F.


Core Performance Highlights

  • Universal 24V "Free Match" Versatility: No complex communication wiring is required between the indoor and outdoor units. Plus, it seamlessly pairs with most standard, third-party 24V thermostats on the market. 

  • Flexible 4-Way Multi-Poise Layout: Fits into any home's unique footprint. The indoor air handler features a flexible design allowing for Upflow, Downflow, Horizontal Left, or Horizontal Right configurations.

  • Precise TruInverter Comfort: Unlike traditional single-stage systems that constantly blast on and off, advanced variable-speed technology continuously adjusts to real-time demand. This eliminates fluctuating temperatures, keeping your home within 2°F of your perfect setting.

  • Optional Heat Kits: Choose between 5 kW, 10 kW, 15 kW, or 20 kW sizes to perfectly match your specific climate needs and heating load requirements. Integrated overheat protection provides added safety, ensuring reliable and worry-free operation.

This comprehensive split system pairs advanced DC inverter technology with ultimate installation flexibility, delivering consistent, whisper-quiet climate control while drastically cutting your monthly energy consumption. Whether you are facing a scorching summer heatwave or a brutal winter freeze, the MRCOOL Signature Series TruInverter System is engineered to keep your home and family perfectly comfortable.

Key Features & Benefits:

  • Future-Proof & Eco-Friendly: Pre-charged with next-generation R-454B refrigerant, which features a low Global Warming Potential (GWP) of just 467—making it significantly cleaner and more environmentally compliant than legacy R-410A systems.

  • Maintenance Without the Headache: Built with a slide-out blower motor and easy-access core parts for lightning-fast service. Features tool-free filter removal with manual-twist screws and smart diagnostic error codes for effortless troubleshooting.

Condenser Features

  • TruInverter Variable-Speed Technology
  • R-454B Next-Generation Refrigerant
  • Factory Charged for Faster Installation
  • Compatible with No-Vac® Quick Connect® Line Sets
  • Quiet Operation (~67 dBA)
  • Operates in Extreme Temperatures (-5°F)
  • Durable Steel Coil Guard Construction
  • Lifetime Compressor Warranty

AHU Features

  • 850 CFM indoor airflow for consistent comfort
  • Variable-speed design supports precise temperature control
  • Indoor sound pressure level around 57 dB(A)
  • Slide-out blower helps simplify service and maintenance
  • Tool-free filter access with manual-twist screws
  • Compatible with most 24V thermostats when properly matched
  • 208/230V single-phase electrical compatibility
  • Compact indoor cabinet: 21" W x 46.5" H x 21" D
  • Integrated intelligent error codes help you identify issues 
  • 4-way installation (Up, Down, Left, or Right) 

 Wired Thermostat

 Thermostat Manual

The MRCOOL Signature Series TruInverter delivers reliable, energy-efficient comfort all year long, making it an excellent choice for homeowners who want strong performance without high utility bills. Enjoy TruInverter  technology, which continuously adjusts compressor output to match real-time demand. This delivers more stable indoor temperatures, improved efficiency, quieter operation, and reduced wear on system components for a longer service life. With high efficiency, quiet performance, and rugged reliability, the MRCOOL TruInverter is a smart, long-term investment in home comfort.

 See Related Items Below For More Accessories ⇓

Specification
Title MR COOL 24k-BTU 18 SEER2 Central Ducted Heat Pump AC (-5Β°F) 10 EER/9 HSPF (R454B)
Brand Mr Cool
Category 24000 Btu | 2 Ton | 800-1200 Sq Ft
SKU MCSHV8M2421BB
Condition new
UPC 840433617150
MPN MCAESHV8T2421BA
Reviews 1
5.0 1 review

Wait... is it even turned on?

Raul Bilodeau · August 2026

That was my exact thought the first night this MRCOOL system ran. Compared to my old unitβ€”which sounded like a jet engine taking off in the yardβ€”this inverter unit barely whispers. Instead of constantly blasting full force and shutting off, it just hums along smoothly in the background, keeping my house at an exact, locked-in temperature. It swallowed a sudden winter freeze without breaking a sweat, and my electric bill took a noticeable nose-dive almost immediately. Modern inverter efficiency hooked up to existing ducts? Best home upgrade I've made in years.

Customer Reviews

5.0 / 5 · 1 reviews
Wait... is it even turned on?

That was my exact thought the first night this MRCOOL system ran. Compared to my old unitβ€”which sounded like a jet engine taking off in the yardβ€”this inverter unit barely whispers. Instead of constantly blasting full force and shutting off, it just hums along smoothly in the background, keeping my house at an exact, locked-in temperature. It swallowed a sudden winter freeze without breaking a sweat, and my electric bill took a noticeable nose-dive almost immediately. Modern inverter efficiency hooked up to existing ducts? Best home upgrade I've made in years.

Raul Bilodeau · 2026-08-13

Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.

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