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MR COOL 48k-BTU 18 SEER2 Central Ducted Heat Pump AC (-5Β°F) 9 EER/8.5 HSPF (R454B)

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In Stock MCSHV8M4821BB

Introducing the MR COOL 48,000 BTU TruInverter Central System, your go-to energy-efficient heating and cooling system! This powerhouse is designed to keep your home comfortable in extreme temperatures, from a chilly -5 F to a scorching 125 F. With its high-efficiency air conditioning and flexible air handler design, this 4 ton heat pump adapts to your space effortlessly, offering upflow, downflow, and horizontal installation options. The MR COOL Central Split AC combines rugged reliability with advanced technology, ensuring you enjoy optimal comfort year-round. Say goodbye to temperature woes and hello to a cozy home with the MR COOL TruInverter!

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Description

MR COOL Central Split Heat Pump

This 48000 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 48K 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 48k-BTU 18 SEER2 Central Ducted Heat Pump AC (-5Β°F) 9 EER/8.5 HSPF (R454B)
Brand Mr Cool
Category 48000 Btu | 4 Ton | 1800-2000 Sq Ft
SKU MCSHV8M4821BB
Condition new
UPC 840433617174
MPN MCAESHV8T4821BA
Reviews 1
5.0 1 review

Excellent purchase

Peter Wallace · May 2026

This MrCool setup completely redefines what a whole-home heat pump can do, totally shattering my old expectations of central HVAC. Instead of the typical loud, blast-and-stop cycles of standard systems, this unit purrs along with an incredibly smooth, continuous airflow that erases hot and cold spots entirely. Watching my utility meters drop while the indoor comfort levels skyrocket has been an absolute thrill. It delivers a level of crisp, intelligent climate control that feels less like a basic appliance upgrade and more like stepping into a premium, custom-engineered environment.

Customer Reviews

5.0 / 5 · 1 reviews
Excellent purchase

This MrCool setup completely redefines what a whole-home heat pump can do, totally shattering my old expectations of central HVAC. Instead of the typical loud, blast-and-stop cycles of standard systems, this unit purrs along with an incredibly smooth, continuous airflow that erases hot and cold spots entirely. Watching my utility meters drop while the indoor comfort levels skyrocket has been an absolute thrill. It delivers a level of crisp, intelligent climate control that feels less like a basic appliance upgrade and more like stepping into a premium, custom-engineered environment.

Peter Wallace · 2026-05-21

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

(877) 770-3548

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