What's in the box
- 10-year compressor warranty
- 10-year parts warranty
- 10-year labor warranty
Free curbside shipping on eligible MRCOOL® systems across the continental U.S. Most products ship in 3–5 business days and arrive in 4–10 days, depending on your location. Freight carriers will call to schedule delivery.
Returns accepted within 30 days on new, unopened items in original packaging. A restocking fee of up to 35% may apply for HVAC equipment — we’ll always confirm before issuing a return authorization.
Each MRCOOL® system is backed by manufacturer warranty coverage as defined by product and model — typically 5–10 years on major components. Register your system after installation to activate full coverage.
Need help with sizing, voltage or compatibility? Email support@coolheatdirect.com — our U.S. team replies within one business day.
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
What's Included
- 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
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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