MRCOOL Universal 54K BTU, 4-5 Ton, 18 SEER, R410A DC Inverter High ESP Air Handler (MDUI18048060E)
The new Universal High-ESP 54K BTU Air Handler is built for high static pressure environments, making it ideal for manufactured or mobile homes, or systems with ductwork restrictions that challenge standard air handlers. It features a high-performance DC fan motor with specially designed quiet blades, delivering powerful airflow with minimal noise.
With a maximum static pressure of 250Pa, this unit supports versatile installation options—including vertical, horizontal left, or right—to fit various setups. It also comes with a long-lasting, corrosion-resistant metal filter that’s easy to clean, ensuring durability and low maintenance.
Specifications
| Dimensions |
21-1/4"W x 24-3/4"D x 57"H |
| SEER |
Up to 18 |
| EER |
10.5 |
| HSPF |
10 |
| CFM |
1600 |
| Tonnage |
4-5 Ton |
| Cooling Capacity |
54000 BTU |
| Heating Capacity |
54000 BTU |
| Phase |
1 |
| Cycle |
60 Hz |
| Max Fuse Breaker |
15 A |
| Min Circuit Ampacity |
8 A |
| Color |
Gray |
| Refrigerant Type |
R-410A |
| Decibel Rating |
51 dBA |
| Number of Speeds |
8 Speed |
| lnverter |
DC |
| Min Ambient Cool |
-5F - 129.2F |
| Min Ambient Heat |
-22 F - 75.2F |
| Lineset Included |
No |
| Liquid Line Size |
3/8 in |
| Suction Line Size |
3/4 in |
| Blower Motor HP |
1 |
| Filter Type |
Washable |
| Filter Size |
20-11/16 X 20-5/16 X 5/8 |
| Auxiliary Heater Available |
Yes |
| Auxiliary Heater Sizes |
10KW / 15 KW / 20 KW |
| Overload Protection |
Yes |
| Certifications |
ETL
Energy Star
AHRI
|
What our Experts Think
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Wide Capacity Range – 54,000 BTU (4–5 Ton) output ideal for large residential or light commercial spaces.
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High Efficiency – 18 SEER DC inverter technology maximizes comfort while reducing energy costs.
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High ESP Design – Built to handle higher static pressure, making it compatible with longer duct runs.
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Flexible Pairing – Works seamlessly with MRCOOL Universal condensers for reliable system performance.
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Durable & Quiet – Strong construction with inverter-driven operation ensures long-lasting, low-noise comfort.
Q&A
Q: What is the MRCOOL Universal 54K BTU Air Handler designed for?
A: It’s a high static pressure (ESP) air handler engineered to pair with MRCOOL Universal condensers for powerful whole-home heating and cooling.
Q: How much capacity does it provide?
A: With 54,000 BTU (4–5 tons), it’s suitable for large residential or light commercial spaces up to 2,500–3,000 sq. ft.
Q: What makes this model energy efficient?
A: Featuring DC inverter technology and an 18 SEER rating, it delivers consistent comfort while lowering energy costs.
Q: Which refrigerant does it use?
A: It is built for R-410A refrigerant, ensuring compatibility with modern HVAC standards.
Q: What does “High ESP” mean?
A: High External Static Pressure (ESP) allows the air handler to work with long duct runs or restrictive ductwork, improving airflow in larger systems.
Q: Who is this air handler best for?
A: Ideal for homeowners and businesses needing a flexible, energy-efficient solution that integrates with ducted central HVAC setups.
Maintenance Tips
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Air Filter Care: Replace or clean filters every 1–3 months to maintain airflow and efficiency.
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Coil Maintenance: Inspect and clean evaporator coils annually for peak performance.
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Check Drain Line: Keep condensate lines clear to prevent leaks and water damage.
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Fan & Motor Care: Clean blower fan blades and check motor operation for smooth performance.
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Cabinet Seals: Ensure panels are tightly closed to avoid air leakage.
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Thermostat Check: Verify accurate temperature control before each season.
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Professional Service: Schedule annual inspections to maximize SEER efficiency and extend lifespan.
