MRCOOL
MRCOOL 3.5 Ton Horizontal VersaPro® Package Heat Pump - R454B
3.5 Ton | SEER2 13.4 | R-454B | 208/230V
- 40500 BTU cooling capacity
- Up to 13.4 SEER2 rated efficiency
- Scroll compressor
- Uses R-454B refrigerant
Key Specifications
Product Overview
The MRCOOL® VersaPro® Series 42K Package Heat Pump is engineered to handle demanding year-round climate control in a single, compact unit. Offering strong summer cooling and powerful winter heating, it delivers efficiency, durability, and quiet performance that make this unit perfect for homeowners seeking a dependable HVAC upgrade.
With a 13.4 SEER2 rating, the VersaPro® 42K helps lower energy costs and reduce environmental impact. It uses R-454B refrigerant, which provides excellent heating and cooling efficiency with a much lower global warming potential than older refrigerants.
The system’s power-painted galvanized steel cabinet shields components from weather and corrosion, while its horizontal discharge design allows quieter operation—ideal for residential properties with space or noise restrictions. Inside, aluminum tubing and fin coils enhance heat transfer and offer better corrosion resistance than copper, reducing maintenance needs and extending service life.
A high-efficiency full series compressor and PSC blower motor ensure optimal airflow, consistent comfort, and lower operating costs. Built-in safety features guard against pressure extremes and coil temperature fluctuations, helping to ensure reliable operation in a variety of conditions.
With a 10-year limited parts warranty and 10-year compressor warranty, the MRCOOL® VersaPro® 42K delivers reliable performance, energy efficiency, and long-lasting comfort—season after season.
Additional specifications
| UPC | 840255588683 |
|---|---|
| Series | VersaPro® R-454B Package Heat Pump |
| Refrigerant charge (oz) | 95 |
| Heating capacity (BTU/h) | 40,500 |
| Airflow (CFM) | 1430 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 29.9 |
| Max fuse / breaker (A) | 40 |
| Inverter | No |
| Blower motor type | PSC |
| Blower motor HP | 1/4 |
| Blower speeds | 3 |
| Metering device | Piston |
| Drain connection (in) | 3/4 |
| Min ambient cooling (F) | 32 |
| Min ambient heating (F) | -0.4 |
| Aux heater included | No |
| Aux heater available | Yes |
| Aux heater sizes (kW) | 5 KW / 7.5 KW / 10 KW / 15 KW / 20 KW |
| AHRI certified | Yes |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 10 Years |
| Compressor warranty (yrs) | 10 Years |
| Shipping W x H x D (in) | 42.24 x 34.07 x 59.25 |
| Shipping weight (lbs) | 472 |
Documents
- Specification sheet (PDF)
- Installation manual (PDF)
- Service manual (PDF)
- Brochure (PDF)
- Warranty (PDF)
- AHRI certificate (PDF)
- EnergyGuide label (PDF)
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Packaged Heat Pump |
|---|---|
| Capacity | 40500 BTU |
| Tonnage | 3.5 Ton |
| Compressor / Stages | Scroll |
| SEER2 | 13.4 |
| EER2 | 11.2 |
| HSPF2 | 6.7 |
| Sound Level | 80 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
Physical & Certifications
| Dimensions (W x H x D) | 42.06 x 33.06 x 58.5 |
|---|---|
| Weight | 454 lb |
| Color / Finish | Grey |
Shipping & Delivery
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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