MRCOOL® Signature Series 30,000 BTU Stud-Mount Air Handler 2.5 Ton R-454B ECM — MCAEAWPEF30E21AA

Product Description 

The MRCOOL® Signature Series MCAEAWPEF30E21AA is a 30,000 BTU (2.5-ton) stud-mount air handler designed for installations where space efficiency, performance, and flexibility matter most. Built to fit between standard wall studs, this model is ideal for remodels, additions, apartments, multi-family properties, and modern construction where traditional air handlers simply will not fit.

Despite its compact footprint, this unit delivers strong, balanced airflow at 965 CFM, making it an excellent match for MRCOOL® Signature Series top-discharge condensers and heat pumps. Flexible front or bottom return air options allow installers to adapt the system to the layout of the space, while the upflow airflow configuration ensures efficient and even air distribution throughout the conditioned area.

Inside the rugged galvanized steel cabinet, a high-efficiency ECM blower motor (1/2 HP) provides quiet operation, precise airflow control, and improved energy efficiency compared to conventional PSC motors. Full cabinet insulation reduces sound levels, minimizes condensation, and helps prevent energy loss, contributing to long-term system reliability and comfort.

Maintenance is simple thanks to the built-in filter rack, which allows for fast, tool-free filter changes. For colder climates or supplemental heating needs, the system supports optional electric heat kits (5kW, 7.5kW, or 10kW). Designed for use with R-454B refrigerant, this air handler meets modern environmental standards and is future-ready. Backed by a 10-year parts warranty, the MRCOOL® Signature Series 30K Stud Mount Air Handler delivers dependable comfort, smart engineering, and installation flexibility in one streamlined solution.

KEY FEATURES & BENEFITS  

• 30,000 BTU / 2.5 Ton Capacity – Ideal for mid-to-large zones
• Stud-Mount Design – Installs cleanly between standard wall studs
• Space-Saving Cabinet – Perfect for tight or non-traditional installs
• 965 CFM Airflow – Strong, consistent air delivery
• High-Efficiency ECM Blower Motor (1/2 HP) – Quiet, efficient performance
• R-454B Refrigerant Compatible – Low-GWP, future-ready system
• Front or Bottom Return Air Options – Maximum installation flexibility
• Upflow Airflow Configuration – Efficient system design
• Durable Galvanized Steel Cabinet – Built for long service life
• Fully Insulated Cabinet – Reduced noise & condensation
• Built-In Filter Rack – Easy maintenance and filter changes

• Optional Electric Heat Kits – models below 
• 1. 5kW,      Model- MCAEHWD5X1AA
• 2. 7.5kW,   Model- MCAEHWD7X1AA
• 3. 10kW,    Model- MCAEHWD10X1AA

• AHRI Certified / UL / CSA / ETL Listed – Verified safety & performance

ELECTRICAL REQUIREMENTS 

• Voltage: 208/230V
• Phase: Single
• Max Fuse / Breaker: 6 Amps
• Minimum Circuit Ampacity (MCA): 4.5 Amps

DIMENSIONS & WEIGHT 

Installed Unit Dimensions

• Width: 22.125 in
• Height: 39.5 in
• Depth: 19 in

Weight

• Net Weight: 110 lbs
• Shipping Weight: 120 lbs

WARRANTY INFORMATION  

• Base Warranty
  
• ✅ 10-Year Parts Warranty
• ✅ Limited Lifetime Compressor Warranty (when paired with compatible system)

 FREQUENTLY ASKED QUESTIONS 

Q: What systems is this air handler compatible with?

A: It is designed to work with MRCOOL® Signature Series top-discharge condensers and heat pumps.

Q: Can this unit be installed inside a wall cavity?

A: Yes. This model is engineered specifically to install between standard wall studs.

Q: Does this unit include electric heat?

A: No, but optional electric heat kits (5kW, 7.5kW, or 10kW) are available.

Q: What refrigerant does this air handler use?

A: R-454B refrigerant, meeting modern environmental standards.

Q: Is professional installation recommended?

A: Yes. Professional installation is recommended to meet electrical, refrigerant, and local code requirements.

Why Buy From MRCOOL DIRECT?

When you order from MRCOOL Direct, you get:

• ✅ Authorized MRCOOL® dealer – Your warranty is protected
• ✅ Factory-fresh units – No refurbished or mystery sources
• ✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real product support – Help with sizing, line set selection, and DIY questions
• ✅ No third-party marketplace middlemen – Just genuine MRCOOL® systems from a trusted MRCOOL® dealer.

BUY DIRECT!

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615-553-8118

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