Description
The MRCOOL Signature Series MCAEAWPEF36E21AA is a 3-ton stud-mount (wall-closet) air handler for R-454B split systems, matched with Signature Series heat pump and air conditioner condensers for AHRI-rated performance. Its slim cabinet fits between wall studs in closets and small mechanical spaces. An ECM blower motor moves air quietly, and an optional MRCOOL electric heat kit adds supplemental or emergency heat.
Elevate your home comfort with the MRCOOL® Signature Series 36K Stud Mount Air Handler—designed for exceptional flexibility, energy efficiency, and easy installation.
Built to fit neatly between standard wall studs, this slim, space-saving unit is ideal for areas where conventional air handlers aren’t practical, providing a smart solution for a variety of installation scenarios.Despite its compact size, the unit delivers strong, reliable heating and cooling performance when paired with a compatible heat pump or condenser.
With both front and bottom return air options, it offers adaptable airflow configurations to suit your space.Constructed with a rugged galvanized steel cabinet and advanced blower technology, the 36K Stud Mount Air Handler operates quietly and consistently. Full cabinet insulation reduces energy loss and prevents condensation, while the high-efficiency ECM motor ensures balanced airflow and lower energy consumption.
Maintenance is quick and simple thanks to the integrated filter rack, and optional electric heat kits provide additional comfort during colder months.Backed by a 10-year limited parts warranty, this unit offers long-term peace of mind along with dependable performance. Whether upgrading an existing system, renovating, or building new, the MRCOOL® Signature Series 36K Stud Mount Air Handler delivers a compact, high-performance solution without compromising comfort.
Key Features
- Installation: Fits between standard wall studs—ideal for tight or unconventional spaces
- Airflow Configuration: Supports front or bottom return air
- Cabinet: Rugged galvanized steel with full insulation to reduce energy loss and condensation
- Blower Motor: High-efficiency ECM motor for consistent airflow and energy savings
- Noise Level: Quiet operation
- Filter: Integrated filter rack for easy filter changes
- Optional Upgrades: Electric heat kits for supplemental heating in colder climates
Product Specifications
| Brand | MRCOOL |
|---|---|
| Model | MCAEAWPEF36E21AA |
| Series | Signature Series (R-454B) |
| Capacity | 36,000 BTU (36K) – pairs with compatible heat pumps or condensers |
| Installation | Fits between standard wall studs—ideal for tight or unconventional spaces |
| Airflow Configuration | Supports front or bottom return air |
| Cabinet | Rugged galvanized steel with full insulation to reduce energy loss and condensation |
| Blower Motor | High-efficiency ECM motor for consistent airflow and energy savings |
| Noise Level | Quiet operation |
| Filter | Integrated filter rack for easy filter changes |
| Optional Upgrades | Electric heat kits for supplemental heating in colder climates |
| Applications | Perfect for upgrades, renovations, or new construction |
| Design | Compact, space-saving profile without sacrificing performance |
Compatibility & Installation
- Matched system: Pairs with Signature Series R-454B heat pump (MCAESHS4T) and air conditioner (MCAESAS4T) condensers of the same tonnage.
- Line set: Sweat (brazed) connections; line set not included.
- Professional installation: Must be installed by a licensed HVAC contractor; R-454B is an A2L refrigerant.
