MRCOOL® 36k BTU 18 SEER2 DC Inverter Packaged Heat Pump-R410A
MODEL: MDPH180364
Product Description
High-Efficiency 3-Ton Packaged Heat Pump with Inverter Technology
The MRCOOL® Universal Series 36k BTU DC Inverter Packaged Heat Pump is a powerful, all-in-one solution for heating and cooling residential spaces with maximum energy efficiency. Engineered for performance in extreme temperatures—down to -22°F in heating mode—this 3-ton ducted system uses advanced inverter technology to maintain consistent indoor comfort while dramatically reducing energy costs.
Ideal for homeowners looking to replace aging HVAC systems or upgrade to a modern, eco-friendly alternative, this unit provides both heating and cooling from a single outdoor package. Its variable-speed DC inverter compressor minimizes noise and energy loss, adapting to indoor and outdoor temperature changes with precision. The system supports flexible air return (bottom or side), rooftop or standard installation, and offers compatibility with optional heat kits for colder climates.
Enjoy peace of mind with a best-in-class 10-year warranty on parts, labor, and compressor—with no registration required.
Why Installers Choose It
✅ High-Efficiency Performance – 18 SEER2, 11 EER2, and 8.8 HSPF2 ratings
✅ Inverter Compressor – Smooth, silent operation with real-time temperature adaptation
✅ Extreme Climate Ready – Operates from -22°F to 125°F
✅ Flexible Return Air – Side or bottom configuration for rooftop or ground install
✅ Zero Fossil Fuels – Fully electric, low-emission HVAC solution
✅ Wired Thermostat Included – Easy control right out of the box
✅ 10-Year Warranties – Coverage on parts, labor, and compressor—no forms to fill
Specifications at a Glance
| Attribute | Details |
|---|---|
| Cooling Capacity | 34,400 BTU |
| Heating Capacity | 36,000 BTU |
| Tonnage | 3 Ton |
| SEER2 / EER2 | 17.8 / 11 |
| HSPF2 | 8.8 |
| Voltage / Phase / Cycle | 208–230V / 1 / 60 Hz |
| Inverter | Yes (DC Inverter Rotary) |
| Refrigerant Type / Volume | R410A / 176.4 oz |
| Noise Level (Low/High) | 63 dBA / 73 dBA |
| Dimensions (W x D x H) | 44" × 35.43" × 49.25" |
| Net Weight | 523 lbs |
| Energy Certifications | ENERGY STAR®, AHRI, ETL Listed |
| Warranty | 10 Years Parts, Labor, Compressor |
What’s Included
-
MRCOOL® 3-Ton Packaged Heat Pump (Model MDPH180364)
-
Wired Thermostat
-
Washable Aluminum Filter (28x9x3/5 in)
-
Precharged Unit with R410A Refrigerant
- Integrated Inverter Compressor & Fan System
Installation Notes
⚠️ This system must be installed by a licensed HVAC professional to ensure optimal performance and warranty compliance. Optional auxiliary heat kits are available for additional heating support in colder regions.
Installation & Manuals
Shipping Policy
At Cool Heat Direct, we offer free curbside delivery on all MRCOOL product orders via FedEx Ground, FedEx Freight, or trusted carriers depending on order size.
-
Deliveries are made to the curbside — please arrange assistance for heavy or large items, as drivers do not carry items indoors or upstairs.
-
Tracking details will be sent within 3–5 business days after placing your order.
-
Freight shipments are scheduled directly by the carrier using the contact information you provide at checkout.
-
Please inspect your shipment upon delivery and report any visible damage on the delivery receipt.
👉 Click here for our full Shipping Policy
Return Policy
We want you to love your purchase from Cool Heat Direct. If you need to return an item:
-
Contact us within 30 days of delivery.
-
Items must be unused, uninstalled, and in their original packaging.
-
A 35% restocking fee applies to all approved returns.
-
Accessories such as line sets, wall mounts, and couplers are non-returnable.
-
Return shipping is the customer’s responsibility unless the item is damaged or defective on arrival.
To start a return, please email us at support@coolheatdirect.com with your order number and reason for return.
Choose options