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MRCOOL

MRCOOL Signature 48,000 BTU Split System Air Handler Multi-Position

MCAEAMPEF48E21AA

48,000 BTU · 208/230V · R-454B

Part of Signature Series – Air Handlers

Cooling capacity
48,000 BTU4 tons
Power
208/230V10A breaker
Refrigerant
R-454B

Call for pricing Add it to your cart and send us a quote request — or call 678-467-5515.

Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. Professional installation by a licensed HVAC contractor is required for the manufacturer warranty.

Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.

About this product

The MRCOOL® Signature Series 48k Multi-Position Air Handler is a powerful and flexible solution for year-round home comfort. Engineered for performance and efficiency, this system works with R-454B refrigerant, offering a more environmentally friendly option that meets modern energy standards without compromising reliability. Designed to adapt to your space, this air handler supports upflow, downflow, and horizontal installations, making it an ideal fit for a wide range of home layouts. When you’re dealing with limited space, its compact and streamlined design makes installation easy without sacrificing capacity. The cabinet exterior is outfitted with galvanized steel built to withstand wear, along with an interior ECM blower motor that delivers steady airflow while helping reduce energy consumption. The copper “A” coils and aluminum fins provide efficient heat transfer, while thermal insulation along the inside of the cabinet helps reduce condensation accumulation and improve overall system efficiency. Setup is straightforward, cutting down on labor time and cost. Maintenance is just as simple, thanks to the air filter rack, and an optional electric heat kit is available for enhanced heating in colder regions. For added convenience, this system pairs effortlessly with most third-party smart thermostats, giving you full control over your comfort without being tied to a specific platform. Backed by a 10-year limited parts warranty, the MRCOOL® Signature Series 48k Multi-Position Air Handler delivers reliable, efficient comfort season after season.

Documents & manuals

Specifications

Capacity & efficiency
TypeAir handler (indoor unit)
SeriesSignature Series
Cooling capacity48,000 BTU
Nominal size4 tons
Airflow1549 CFM
Sound level57 dBA
Electrical
Voltage208/230V
Phase1-phase
Min. circuit ampacity (MCA)7.2 A
Max. breaker (MOP)10 A
Refrigerant & line set
RefrigerantR-454B
Liquid line3/8"
Suction line7/8"
Physical
Indoor unit / mountingMulti-Position
Dimensions (in)22 W × 24.5 D × 53.125 H
Weight163 lb
Shipping weight183 lb
ColorGrey
Certifications, warranty & ordering
AHRI certifiedYes
Safety listingUL, ETL
Parts warranty10 years
UPC840255595896