MRCOOL® VersaPro® 3.5-Ton Package Heat Pump 13.4 SEER2 (40,500 BTU Cooling & Heating) R-454B — MPH421HO13C

Product Description 

The MRCOOL® VersaPro® MPH421HO13C Package Heat Pump is a 3.5-ton, all-in-one HVAC system engineered for powerful year-round comfort in a single outdoor unit. Designed to replace aging split systems or simplify new installations, this packaged heat pump delivers reliable cooling in extreme summer heat and strong heating performance in cold winter conditions.

 

With an efficiency rating of 13.4 SEER2, the VersaPro® 42K helps reduce energy consumption while maintaining consistent indoor temperatures. It operates using R-454B refrigerant, a next-generation, low-GWP refrigerant that meets modern environmental standards without sacrificing performance—making it a future-ready upgrade for residential applications.

 

Built for long-term durability, the system features a power-painted galvanized steel cabinet that protects internal components from corrosion, moisture, and harsh outdoor environments. Its horizontal discharge design helps minimize operating noise, making it ideal for residential neighborhoods where quiet performance matters. Inside the cabinet, aluminum tubing and fin coils provide excellent heat transfer while offering greater corrosion resistance than traditional copper coils.

 

At the heart of the system, a high-efficiency scroll compressor works alongside ECM condenser fan technology and a PSC blower motor to deliver smooth airflow, balanced temperature control, and dependable operation. Integrated safety controls continuously monitor system pressures and coil temperatures to ensure stable performance in demanding conditions.

 

Backed by industry-leading warranties, including 10-year parts and 10-year compressor coverage with registration, the MRCOOL® VersaPro® MPH421HO13C is a smart, long-term investment in comfort, efficiency, and peace of mind.

 

KEY FEATURES & BENEFITS

• 3.5-Ton Packaged Heat Pump – Heating & cooling in one outdoor unit
• 13.4 SEER2 Efficiency – Reduced energy costs & improved performance
• R-454B Refrigerant – Low global warming potential, EPA-compliant
• 40,500 BTU Cooling & Heating – Balanced year-round comfort
• Horizontal Discharge Design – Quieter residential operation
• All-In-One Package Unit – No indoor air handler required
• Galvanized Steel Cabinet – Weather-resistant, corrosion-protected
• Aluminum Coil Technology – Enhanced heat transfer & longevity
• Auxiliary Heat Ready – Supports 5kW, 7.5kW, 10kW, 15kW, or 20kW kits
• AHRI, UL, ETL, CSA Certified – Verified safety & performance

  

ELECTRICAL & PERFORMANCE 

• Voltage: 208 / 230V
• Phase: 1
• Frequency: 60 Hz
• Max Breaker: 40 Amps
• Minimum Circuit Ampacity (MCA): 29.9 Amps
• CFM: 1430
• Min Ambient Cooling: 32°F
• Min Ambient Heating: -0.4°F

   TECHNICAL SPECIFICATIONS

• Tonnage: 3.5 Ton
• SEER2: 13.4
• EER2: 11.2
• HSPF2-4: 6.7
• Cooling Capacity: 40,500 BTU
• Heating Capacity: 40,500 BTU
• Refrigerant: R-454B (95 oz)
• Compressor Type: Scroll
• Condenser Fan Motor: ECM
• Blower Motor: PSC (3-Speed)
• Control Type: 24V Thermostat
• Aux Heat Available: Yes  compatible listed below. 

• 5kW         Model- MHK05PB
• 7.5kW      Moldel- MHK07PB
• 10kW       Model- MHK10PB
• 15kW       Model- MHK15PB
• 20kW.      Model- MHK20PB

DIMENSIONS & WEIGHT

Unit Dimensions

• Width: 42.06 in
• Height: 33.06 in
• Depth: 58.5 in

Weight

• Net Weight: 454 lbs
• Shipping Weight: 472 lbs

 

WARRANTY INFORMATION

• Registered Warranty
  
• 10-Year Parts
• 10-Year Compressor
• Base Warranty
• 5-Year Parts
• 5-Year Compressor 

 

FREQUENTLY ASKED QUESTIONS 

Q: Is this a complete HVAC system?

A: Yes. This is a self-contained packaged heat pump that does not require an indoor air handler.

 

Q: Can this unit heat in cold temperatures?

A: Yes. Heating operation is supported down to -0.4°F, with optional electric auxiliary heat available.

 

Q: What refrigerant does this system use?

A: R-454B, a low-GWP refrigerant designed to meet future efficiency standards.

 

Q: Is auxiliary electric heat required?

A: No. Auxiliary heat is optional and can be added for extreme cold conditions.

 

Why Buy From MRCOOL DIRECT?

When you order from MRCOOL Direct, you get:

• ✅ Authorized MRCOOL® dealer – Your warranty is protected
• ✅ Factory-fresh units – No refurbished or mystery sources
• ✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real product support – Help with sizing, line set selection, and DIY questions
• ✅ No third-party marketplace middlemen – Just genuine MRCOOL® systems from a trusted MRCOOL® dealer.

BUY DIRECT!

Feel Free to call us anytime. Family Friendly help just a dial away. We love talking HVAC
615-553-8118

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