MRCOOL Universal Series 4 Ton Central Heat Pump Split System, UHP1848AH1848-O

17.5 SEER2 • R-454B Refrigerant • Extreme Cold Climate Performance

The MRCOOL® Universal® Series 48K BTU 4 Ton Central Ducted Heat Pump System is a high-capacity, inverter-driven HVAC solution designed to deliver reliable, energy-efficient comfort in larger homes and demanding residential applications. Engineered to perform in extreme conditions, this system operates across a wide temperature range from -22°F to 122°F, making it an excellent choice for cold, mixed, and hot climates.

Built around advanced DC inverter technology, the Universal Series dynamically adjusts output to match real-time heating and cooling demand. This results in improved comfort, reduced energy consumption, quieter operation, and longer system life compared to conventional single-stage equipment.

System Overview

The MRCOOL Universal Series combines a high-efficiency outdoor heat pump condenser with a versatile, multi-position indoor air handler. Designed for maximum flexibility, the system is compatible with third-party air handlers and thermostats, including popular Wi-Fi-enabled models such as Nest and Honeywell, allowing greater freedom in system design and control.

The 4-ton configuration is well suited for larger homes, system replacements, and installations where efficiency, compatibility, and long-term reliability are priorities.

Outdoor Heat Pump Condenser Features

The MRCOOL Universal® Series 4 Ton Heat Pump Condenser delivers powerful heating and cooling with intelligent, low-noise operation.

• High-Efficiency Performance
  Rated at 17.5 SEER2, providing strong energy savings while maintaining consistent indoor comfort.
• Wide Operating Temperature Range
  Reliable performance from -22°F to 122°F, ensuring dependable heating and cooling in extreme weather conditions.
• DC Inverter Technology
  Variable-speed operation precisely matches system output to demand, improving efficiency, comfort, and component longevity.
• Quiet Operation
  Internal fan blade design and inverter-driven components reduce operational noise compared to traditional systems.
• Next-Generation R-454B Refrigerant
  Pre-charged with R-454B refrigerant, offering lower environmental impact while maintaining strong heating and cooling performance.
• Broad Compatibility
  Designed to work seamlessly with third-party air handlers and thermostats, including smart and Wi-Fi-enabled options.
• Certified Performance
  ETL and AHRI certified for verified safety, efficiency, and performance.

Indoor Air Handler Features

The MRCOOL Universal® Series 4 Ton Air Handler is engineered for efficient airflow, quiet operation, and installation flexibility.

• Multi-Position Installation
  Supports upflow, downflow, and horizontal (left or right) configurations to accommodate a wide range of ductwork layouts.
• High-Efficiency Airflow Design
  Equipped with a powerful DC fan motor for consistent, energy-efficient air delivery.
• Multiple Connection Options
  Compatible with NO-VAC® pre-charged Quick Connect® line sets, sweat/braze fittings, or flare fittings, supporting both DIY and professional installation methods.
• Enhanced Electrical Safety
  Fire-resistant electrical box design with reserved space for circuit breaker installation.
• Durable, Washable Metal Filter
  Long-lasting metal filter is easy to clean and resistant to fire, corrosion, and wear.
• Condensation Protection
  Dual-layer condensation protection enhances safety and reliability in humid or high-demand environments.
• Quiet Operation
  Designed for low noise output, making it suitable for installation near living areas and bedrooms.

Ideal Applications

• Large residential homes
• Replacement of older central HVAC systems
• Cold and mixed climate regions
• Installations requiring flexibility in thermostat and equipment pairing

Warranty Coverage

• 10-Year Parts Warranty
• 2-Year Limited Labor Warranty

Provides long-term protection and confidence in your investment.