What's in the box
- 1 × MRCOOL® VersaPro® 42K BTU 3.5 Ton Packaged Heat Pump
- Installation Documentation
Professional installation is recommended.
The MRCOOL® VersaPro® Packaged Heat Pump is an all-in-one outdoor HVAC unit designed to connect to compatible ductwork.
This unit uses a horizontal discharge design and requires proper electrical connection, ductwork setup, drainage, thermostat wiring, airflow configuration, and local code compliance.
Auxiliary heat kits are available separately for additional heating support.
Always refer to the installation manual and local building codes before installation.
• Registered Warranty: 10-Year Parts Warranty
• Registered Warranty: 10-Year Compressor Warranty
• Base Warranty: 5-Year Parts Warranty
• Base Warranty: 5-Year Compressor Warranty
Please refer to the Warranty Documentation for full warranty terms, registration requirements, and coverage details.
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Free shipping available.
Orders ship from U.S. warehouse locations. Delivery times may vary by product availability, destination, and freight carrier scheduling.Returns must follow Cool Heat Direct’s return policy and the product must meet return eligibility requirements.
Manuals & documents
MODEL: MPH421HO13C
All-in-One Heating and Cooling for Larger Homes.
Need a stronger packaged HVAC solution that can handle year-round comfort without requiring a separate outdoor condenser and indoor air handler?
The MRCOOL® VersaPro® 42K BTU 3.5 Ton Packaged Heat Pump combines heating and cooling into one compact outdoor unit, making it a practical upgrade for homeowners who want dependable comfort, simpler equipment layout, and long-term performance.
Ideal for homes around 1,500–1,900 sq ft, this packaged heat pump delivers powerful cooling in summer and reliable heating in colder months, all from one all-in-one unit designed for everyday residential comfort.
With 13.4 SEER2 efficiency, R-454B refrigerant, horizontal discharge design, and a durable power-painted galvanized steel cabinet, this unit helps support efficient operation while protecting key components from weather and wear.
Its scroll compressor, ECM condenser fan motor, PSC blower motor, and 24V thermostat control work together to support steady airflow, consistent temperature control, and reliable year-round operation.
For additional heating support, compatible auxiliary heat kits are available separately, giving homeowners extra flexibility when colder conditions require more warmth.
Simple. Compact. Reliable. Built for year-round comfort.
Why You’ll Love It
✅ All-in-one packaged heat pump design
✅ Ideal for homes around 1,500–1,900 sq ft
✅ 13.4 SEER2 efficiency
✅ Heating and cooling from one outdoor unit
✅ Uses R-454B refrigerant
✅ Horizontal discharge design
✅ Durable power-painted galvanized steel cabinet
✅ 24V thermostat control
✅ Auxiliary heat kit compatible
✅ Registered 10-Year Parts & Compressor Warranty
Best For
Whole Home Comfort • Larger Homes • Packaged HVAC Replacements • Homes with Existing Ductwork • Space-Saving Outdoor Installations • Professional HVAC Upgrades
| Specification | Details |
|---|---|
| System Type | Packaged Heat Pump |
| Model | MPH421HO13C |
| Coverage Area | Approximately 1,500–1,900 sq ft |
| System Capacity | 42K BTU |
| Tonnage | 3.5 Ton |
| Cooling Capacity | 40,500 BTU |
| Heating Capacity | 40,500 BTU |
| SEER2 | 13.4 |
| EER2 | 11.2 |
| HSPF2-4 | 6.7 |
| CFM | 1430 |
| Voltage | 208/230V |
| Phase | Single Phase |
| Cycle | 60 Hz |
| Max Fuse Breaker | 40A |
| Min Circuit Ampacity | 29.9A |
| Refrigerant | R-454B |
| Refrigerant Volume | 95 oz |
| Sound Level | 80 dBA |
| Inverter | No |
| Min Ambient Cooling | 32°F |
| Min Ambient Heating | -0.4°F |
| Control Type | 24V Thermostat |
| Compressor Motor Type | Scroll |
| Condenser Fan Motor Type | ECM |
| Condenser Fan Motor HP | 1/3 HP |
| Blower Motor Type | PSC |
| Blower Motor HP | 1/4 HP |
| Blower Motor Speeds | 3 |
| Metering Device | Piston |
| Drain Connection Size | 3/4" |
| Auxiliary Heat Compatible | Yes |
| Auxiliary Heat Sizes | 5 kW / 7.5 kW / 10 kW / 15 kW / 20 kW |
| Certifications | UL, CSA, ETL, AHRI |
| Registered Warranty | 10-Year Parts / 10-Year Compressor |
| Base Warranty | 5-Year Parts / 5-Year Compressor |
| Net Dimensions | 58.5" D × 33.06" H × 42.06" W |
| Net Weight | 454 lbs |
| Gross Dimensions | 59.25" D × 34.07" H × 42.24" W |
| Gross Weight | 472 lbs |
Questions, answered
Everything homeowners ask before buying a MRCOOL® system.
Installation
Do I need an HVAC technician to install this?
No. MRCOOL® DIY systems are designed for homeowner installation. The pre-charged Quick Connect® line set means there's no refrigerant handling, no vacuum pump, and no special tools or license required.
How long does installation take?
Most single-zone systems go in within a few hours: mount the indoor air handler, set the outdoor condenser, connect the pre-charged line set, and power it on.
Do I need an electrician?
The system needs a dedicated circuit. Most homeowners have a licensed electrician add the breaker and disconnect — everything else you can do yourself.
Sizing & compatibility
What BTU size do I need?
As a rule of thumb: up to 400 sq ft → 9–12K BTU, 400–600 sq ft → 12–18K, 600–1,000 sq ft → 18–24K. Use the room-size guide above and factor in insulation, ceiling height and sun exposure.
Will it heat in winter?
Yes — these are heat pumps, so they heat and cool. Many MRCOOL® systems keep heating in sub-freezing temperatures; check each model's spec sheet for its low-temperature heating range.
115V or 230V — which do I need?
9K–12K units are usually 115V (standard outlet circuit); 18K and larger are typically 230V. The voltage is shown in the product options and specifications.
Warranty & support
What warranty is included?
MRCOOL® systems carry manufacturer warranty coverage — typically 5–10 years on major components when you register your system after installation.
How do I get help choosing or installing?
Email support@coolheatdirect.com — our U.S. team replies within one business day with sizing, voltage and compatibility help.
Shipping & returns
How fast does it ship?
Most products ship in 3–5 business days with free curbside delivery in the continental U.S. The freight carrier calls to schedule your delivery.
Can I return it?
Returns are accepted within 30 days on new, unopened items in original packaging. A restocking fee may apply to HVAC equipment — we always confirm before issuing a return authorization.
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