HOT ! MRCOOL® 4 Ton 17.8 SEER2 Universal Heat Pump Package Unit with 10-Year Labor Warranty R-410A

product Description 

The MRCOOL® Universal® MDPH180484 DC Inverter Packaged Heat Pump is a high-capacity, all-electric HVAC solution engineered to deliver quiet operation, precise temperature control, and major energy savings in a single outdoor unit. Designed for homes and light commercial applications that require strong heating and cooling without fossil fuels, this 4-ton packaged system is a powerful upgrade from traditional split systems or aging gas equipment.

At the heart of this system is advanced DC inverter technology, which allows the compressor and fan motors to continuously modulate output instead of cycling on and off. This results in steadier indoor temperatures, lower electrical consumption, reduced wear on components, and noticeably quieter performance compared to conventional single-stage packaged units.

With an 18 SEER2 efficiency rating, HSPF2 of 8.5, and ENERGY STAR® certification, the MRCOOL® Universal® 48K packaged inverter heat pump is designed to reduce long-term operating costs while maintaining exceptional comfort. The system is built to perform in extreme conditions, delivering cooling in temperatures up to 125°F and dependable heating down to -22°F, making it suitable for both hot southern climates and colder regions.

Installation flexibility is another key advantage. The MDPH180484 supports both side and bottom air return, allowing for traditional ground-level installations or rooftop applications. Optional electric heat kits (5kW–20kW) are available for added auxiliary heating when required. Intelligent defrost technology actively monitors frost conditions to maintain heating efficiency during winter operation.

Backed by industry-leading 10-year warranties on parts, compressor, and labor — with no registration required, the MRCOOL® Universal® DC Inverter Packaged Heat Pump delivers confidence, performance, and year-round comfort in one premium system.

KEY FEATURES & BENEFITS

• DC Inverter Technology – Variable-speed operation for quieter, more efficient comfort


• 18 SEER2 Efficiency / ENERGY STAR® Certified – Lower utility bills and reduced energy waste


• All-in-One Packaged Design – Heating and cooling housed in a single outdoor unit


• Extreme Climate Performance – Cooling up to 125°F, heating down to -22°F


• Flexible Air Return Options – Side or bottom return for ground or rooftop installs


• Intelligent Defrost System – Improves winter heating performance


• Wired Thermostat Included – Simple, reliable system control


• Optional Auxiliary Heat Kits Available – 5kW, 10kW, 15kW, or 20kW


• Fully Electric Operation – No gas, no fossil fuels, no combustion

SYSTEM PERFORMANCE & ELECTRICAL

• Cooling Capacity: 47,000 BTU


• Heating Capacity: 47,000 BTU


• Tonnage: 4 Ton


• SEER2: 17.8


• EER2: 11


• HSPF2: 8.5


• COP @ 47°F: 11.46


• Voltage: 208–230V


• Phase: Single


• Frequency: 60 Hz


• 
  Max Breaker: 45A


• 
  Min Circuit Ampacity: 39.1A

TECHNICAL SPECIFICATIONS 

• Model: MDPH180484


• Series: MRCOOL® Universal® Inverter Packaged Heat Pump


• Refrigerant: R-410A


• Refrigerant Charge: 236.4 oz


• Compressor Type: DC Inverter Rotary


• Condenser Fan Motor: DC


• Condenser Fan RPM: 1060


• Sound Rating: 68 dBA (Low) / 78 dBA (High)


• Filter Type: Washable Aluminum


• Filter Size: 29-5/16 × 13-1/4 × 3/5 in


• Auxiliary Heat: Optional


• Wi-Fi: No (wired thermostat included)

DIMENSIONS & WEIGHT

Unit Dimensions

• Width: 44 in


• Height: 49.25 in


• Depth: 44 in


• Net Weight: 628 lbs


• 
  Shipping Dimensions
  

• Width: 44.63 in


• Height: 50.81 in


• Depth: 44.63 in


• Shipping Weight: 650 lbs

WARRANTY (NO REGISTRATION REQUIRED)

• Parts Warranty: 10 Years


• Compressor Warranty: 10 Years


• Labor Warranty: 10 Years

FREQUENTLY ASKED QUESTIONS 

Q: Is this a split system or a packaged unit?

A: This is a fully packaged heat pump, with all heating and cooling components in one outdoor cabinet.

Q: Does this unit require gas?

A: No. This is a fully electric heat pump — no natural gas or propane required.

Q: Can this system handle cold climates?

A: Yes. It provides heating down to -22°F and uses intelligent defrost technology.

Q: Can I add electric backup heat?

A: Yes. Optional 5kW, 10kW, 15kW, or 20kW heat kits are available.

 WHY BUY FROM MRCOOL DIRECT 

• ✅ Authorized MRCOOL Dealer


• ✅ Genuine Universal Series Equipment


• ✅ Industry-Leading Warranty Coverage


• ✅ Nationwide Shipping


• ✅ MRCOOL Product Experts


• ✅ Trusted MRCOOL DIRECT Online Store