What's in the box
- MRCOOL® Universal® 48K BTU DC Inverter Heat Pump Condenser
- MRCOOL® Universal® 48K BTU Multi-Position Air Handler
- Factory-installed evaporator coil
- Electronic Expansion Valve
- Installation and operation manuals
- Professional installation recommended.
- Suitable for residential central ducted HVAC applications.
- Supports upflow, downflow, and horizontal installation configurations.
- Compatible with MRCOOL® NO-VAC® Quick Connect® Line Sets (sold separately).
- Optional heat kits available for supplemental and emergency heating.
Enjoy added peace of mind with:
- 10-Year Limited Parts Warranty
- 2-Year Limited Labor Warranty
Warranty registration and manufacturer terms apply.
- Free standard shipping is available on eligible orders to the Lower 48 states and Washington, D.C.
- Orders are generally processed within 3–5 business days, followed by approximately 5–12 business days in transit.
- Smaller items may ship by parcel carrier. Larger equipment may be delivered curbside by freight carrier, and the carrier may contact you to coordinate delivery.
- Return requests may be submitted within 30 calendar days of delivery. Products must be new, unused, uninstalled, complete and in their original manufacturer packaging. Powered products must not have been energized.
- For approved change-of-mind, incorrect-sizing or customer-ordering-error returns, the customer is responsible for return freight and a 15% restocking fee. Verified damaged, defective, incorrect or incomplete orders are handled separately.
View our Shipping Policy and Returns & Warranty Policy.
Manuals & documents
MODEL: UHP1848AH1848-O
Powerful Whole-Home Comfort. Designed for Larger Homes and Demanding Climates.
If your home has hot and cold spots, struggles to stay comfortable during extreme weather, or your current HVAC system is working harder than it should, the MRCOOL® Universal® Series 48K BTU 4 Ton Heat Pump System delivers the performance needed to keep larger homes comfortable year-round.
Designed for homeowners who need powerful heating and cooling without excessive energy costs, this complete central ducted system combines high-capacity performance with advanced inverter technology to provide reliable comfort through every season. Whether you're replacing an aging HVAC system, upgrading your home's efficiency, or installing a new system in a larger property, the Universal® Series offers a dependable solution built for long-term performance.
Unlike traditional systems that constantly cycle on and off, advanced DC inverter technology continuously adjusts output to match your home's heating and cooling demands. This helps maintain more consistent temperatures, improve energy efficiency, reduce unnecessary wear on components, and create a quieter indoor environment.
The multi-position air handler provides installation flexibility for a wide variety of home layouts, while optional heat kits offer supplemental and emergency heating when additional cold-weather support is required. Combined with environmentally friendly R-454B refrigerant and proven MRCOOL® reliability, this system is engineered to deliver comfort, efficiency, and peace of mind for years to come.
Backed by a 10-Year Limited Parts Warranty and 2-Year Limited Labor Warranty, the MRCOOL® Universal® Series 48K Heat Pump System is a smart investment for homeowners seeking dependable whole-home comfort and long-term value.
Why You’ll Love It
✅ Up to 17.5 SEER2 efficiency
✅ Powerful 48,000 BTU cooling capacity
✅ 48,000 BTU heating capacity
✅ Ideal for larger homes
✅ Advanced DC inverter technology
✅ Consistent whole-home comfort
✅ Lower monthly heating and cooling costs
✅ Flexible installation configurations
✅ Optional electric heat kit compatibility
✅ Environmentally friendly R-454B refrigerant
Best For
- Homeowners replacing larger central HVAC systems
- Homes around 1,700–2,200 sq ft
- Larger homes with multiple living areas
- New construction and major renovation projects
- Reducing long-term energy costs
- Reliable year-round whole-home comfort
| Coverage Area | 1,700–2,200 sq ft |
| System Capacity | 48K BTU |
| Tonnage | 4 Ton |
| Voltage | 230V |
| System Type | Central Ducted |
| Refrigerant | R-454B |
| Cooling Capacity | 48,000 BTU |
| Heating Capacity | 48,000 BTU |
| SEER2 | Up to 17.5 |
| EER2 | Up to 12 |
| HSPF2-4 | 9.5 |
| HSPF2-5 | 7.7 |
| Full System Type | Central Ducted Heat Pump System |
| Series | Universal® R-454B |
| System Model | UHP1848AH1848-O |
| Electrical Requirement | 208/230V, 1 Phase, 60Hz |
| Phase | Single Phase |
| Compressor Type | DC Inverter Rotary |
| Inverter Technology | DC Inverter |
| Installation Positions | Upflow, Downflow, Horizontal |
| Max Line Set Length | 246 ft |
| Line Sizes | 3/8" Liquid / 3/4" Suction |
| Line Set Compatibility | NO-VAC® Quick Connect® |
| Line Sets Included | Sold Separately |
| Heat Kit Compatible | Yes |
| Available Heat Kits | 8kW / 10kW / 15kW / 20kW |
| Installation Type | Professional |
| Best For | Whole Home Comfort |
| Warranty | 10-Year Parts / 2-Year Labor |
Questions, answered
Everything homeowners ask before buying a MRCOOL® system.
Installation
What installation requirements apply to this product?
Installation requirements vary by product type. Selected complete MRCOOL® DIY systems are designed for homeowner installation when fitted in line with the manufacturer’s instructions, local codes and permit requirements.
Central HVAC systems, including Universal®, VersaPro®, Central Ducted Hyper Heat and packaged systems, are intended for professional installation by a qualified HVAC contractor. Licensed electrical work may also be required.
Components, thermostats, controls, line sets and accessories should be installed according to their product documentation and compatibility requirements. Always review the product page, manufacturer guidance and warranty conditions before installation.
Will I need any additional parts, tools or professional services?
Additional requirements vary by product and installation. Tools, electrical materials, mounting hardware, connecting components or other installation supplies may be required unless specifically stated as included.
Review the product description, specifications, installation information and What’s Included section, where available, before ordering.
Where can I find product documents or installation instructions?
Available specifications, installation instructions, owner’s manuals and manufacturer documents are provided on the product page where applicable.
Some simple accessories may not have a separate installation manual. Contact our team if you need help locating documentation for a particular product or model.
Sizing & Compatibility
How do I confirm this product is compatible with my equipment?
Review the product type, model number, dimensions, voltage, capacity, refrigerant type, connection sizes and compatibility information shown on the product page, where applicable.
Components, thermostats, controls and accessories must be matched to compatible equipment. Contact our team before ordering if you are uncertain about compatibility.
What should I check before ordering?
Confirm the product name and model number, together with any relevant dimensions, voltage, capacity, refrigerant type, connections and installation requirements.
For replacement components and accessories, compare the product specifications with your existing equipment and the relevant manufacturer documentation before placing your order.
What is included with this product?
The supplied items are listed in the What’s Included section or product description, where applicable. Only the products, components and accessories specifically stated are included.
Electrical materials, mounting equipment, connecting components or other installation supplies may need to be purchased separately unless expressly stated otherwise.
Warranty & Support
What warranty coverage applies to this product?
Warranty coverage varies by product and model. Eligible MRCOOL® products are covered according to the manufacturer’s warranty terms, registration requirements and installation conditions.
Accessories and individual components may have different coverage. Cool Heat Direct can provide available warranty documentation and general guidance, while warranty eligibility and claim decisions are determined by the manufacturer.
How can I get help before ordering?
Email support@coolheatdirect.com with the product name or model number and details about your project or existing equipment.
For compatibility questions, include the model numbers of any products you intend to connect, control, replace or use together.
Support hours: Monday–Friday, 9 AM–6 PM ET.
Shipping & Returns
How will my order be shipped?
Free standard shipping is available on eligible orders to the Lower 48 states and Washington, D.C.
Orders are generally processed within 3–5 business days, followed by approximately 5–12 business days in transit. Delivery timing varies by product availability, destination and carrier scheduling.
Smaller products may ship by parcel carrier. Larger equipment may be delivered curbside by freight carrier. The carrier may contact you to arrange a delivery appointment.
Can I return this product?
Return requests may be submitted within 30 calendar days of delivery. Products must be new, unused and uninstalled and, where applicable, unpowered. They must also be complete and in their original manufacturer packaging. Prior written authorization is required.
For approved change-of-mind returns, incorrect sizing or customer ordering errors, the customer is responsible for return freight and a 15% restocking fee applies.
Verified damaged, defective, incorrect or incomplete orders are handled separately under our full policy.
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