MRCOOL Universal Series 30K BTU, 2.5 Ton Air Handler - Multiposition (UAH18030-O)
The MRCOOL® Universal® Series 30K Air Handler is designed to deliver dependable comfort and energy-saving performance for homes that demand efficient climate control. Whether you're upgrading from an outdated system or installing new HVAC equipment, this air handler offers a perfect balance of reliability, versatility, and long-term value. Its flexible multi-position design supports upflow, downflow, and horizontal installations, making it ideal for a wide range of applications and layout configurations. The compact footprint allows the unit to fit easily into tight or unconventional spaces such as closets, attics, or mechanical rooms—perfect for maximizing usable space in modern homes. For a streamlined and efficient installation process, the 30K Air Handler is fully compatible with the optional MRCOOL® NO-VAC® Quick Connect® line set. This pre-charged system eliminates the need for vacuuming or flaring, saving time and labor while reducing the chance of installation error.
The unit is also designed to work with MRCOOL® Universal® Series Heat Kits, which enhance heating output in colder climates and provide emergency backup heating when needed. Inside, a space-saving M-shaped evaporator coil increases the surface area for improved heat exchange and airflow. Constructed entirely from 100% aluminum, the coil is corrosion-resistant and built for long-term durability. Quiet operation ensures minimal disruption, making the unit suitable for installation near bedrooms and living spaces. For added peace of mind, MRCOOL® includes a 10-year parts warranty and a 2-year limited labor warranty—offering lasting protection for your investment.
Specifications
| Net Dimensions (In) |
21.5 D x 53.98 H x17.52 W |
| Net Weight (Lbs) |
149.25 |
| CFM |
998.8/894.7/806.4/712.2/N\A |
| Tonnage |
2.5 |
| Voltage (V) |
115/208/230 |
| Phase |
1 |
| Cycle |
60 |
| Max Fuse Breaker (A) |
15 |
| Min Circuit Ampacity (A) |
6-Aug |
| Mount Type |
Multi-Position |
| Color |
Dark Grey |
| Refrigerant Type |
R-454B |
| Decibel Rating (Dba) |
49/47/45.5/31.5/N\A |
| Decibel Rating Low (Dba) |
31.5 |
| Decibel Rating High (Dba) |
49 |
| Number Of Speeds |
4 |
| Max Lineset Length (Ft) |
164 |
| Liquid Line Size |
8-Mar |
| Suction Line Size |
4-Mar |
| Filter Type |
Replaceable |
| Filter Size |
16 x 20 x 1 |
| Metering Device |
EXV |
| Auxiliary Heater Included |
No |
| Auxiliary Heater Available |
Yes |
| Auxiliary Heater Sizes |
5 KW / 8 KW / 10 KW / 15 KW |
| UL Listed |
Yes |
| CSA Listed |
Yes |
| ETL Listed |
Yes |
| Base Warranty |
10 Year Parts |
| Base Parts Warranty |
10 Years |
| Base Labor Warranty |
2 Year |
| Contains Electronics |
Yes |
| Contains Chemicals |
Yes |
| Contains Compressed Gas |
Yes |
| Proposition 65 Warning |
Yes |
| Net Weight (Lbs) |
149.25 |
| Gross Depth (In) |
31.1 |
| Gross Height (In) |
20.47 |
| Gross Width (In) |
57.09 |
| Gross Weight (Lbs) |
182.1 |
What our Experts Think
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Reliable Mid-Size Capacity – With 30K BTU (2.5 tons), this air handler is well-suited for small to medium homes.
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Multiposition Flexibility – Supports upflow, downflow, or horizontal installation to adapt to different duct layouts.
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Universal Compatibility – Designed to pair seamlessly with MRCOOL Universal Series condensers for peak efficiency.
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Quiet & Efficient Airflow – Provides strong circulation while keeping noise levels low.
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Durable Design – Built with quality materials to ensure dependable, long-lasting performance.
Q&A
Q: What is the capacity of this MRCOOL Universal air handler?
A: It delivers 30,000 BTU (2.5 Ton) of cooling and heating capacity.
Q: What type of installation does it support?
A: This unit is a multiposition air handler, allowing upflow, downflow, and horizontal installations.
Q: Is it compatible with MRCOOL Universal condensers?
A: Yes, it’s designed to pair perfectly with MRCOOL Universal DC inverter condensers.
Q: Does it have a variable-speed blower motor?
A: Yes, the ECM variable-speed blower provides quiet operation, stable airflow, and energy efficiency.
Q: Can it connect to existing duct systems?
A: Absolutely — it works seamlessly with standard central ducted HVAC systems.
Q: Who is this air handler ideal for?
A: Homeowners who need a 2.5 Ton, high-efficiency, flexible-install air handler to complete their Universal Series setup.
Maintenance Tips
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Replace or clean air filters every 1–3 months to maintain airflow and efficiency.
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Check the condensate drain pan and line for clogs to avoid water damage.
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Keep blower motor and fan blades clear of dust and buildup.
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Inspect ductwork connections regularly for leaks or loose seals.
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Ensure the cabinet is properly closed and free from surrounding obstructions.
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Verify electrical connections are secure and functioning during seasonal checks.
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Schedule annual professional maintenance to test coil condition, airflow, and system performance.
