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MRCOOL

MRCOOL Signature 24,000 BTU Split System Air Handler Multi-Position

MCAEAMPSF24C21AA

24,000 BTU · 208/230V · R-454B

Part of Signature Series – Air Handlers

Cooling capacity
24,000 BTU2 tons
Power
208/230V3A 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 24k Multi-Position Air Handler is built for reliable, year-round performance and is now enhanced with R-454B refrigerant for improved energy efficiency and reduced environmental impact. Designed for versatility, it can be installed in upflow, downflow, or horizontal configurations, making it ideal for tight spaces like closets, attics, or crawl spaces. Its slim, compact design allows for seamless integration in space-constrained areas, while still delivering full-capacity heating and cooling when paired with a compatible heat pump or condenser. The galvanized steel cabinet ensures durability. Inside, copper “A” coils with enhanced aluminum fins offer excellent heat transfer and humidity control, while thermal insulation minimizes energy loss and reduces condensation. This translates to lower utility bills and more effective indoor comfort. Installation is quick and straightforward, helping reduce labor time and costs. An air filter rack makes change-outs a breeze, and an optional electric heat kit extends heating performance in colder climates. The system is smart home compatible, working with most third-party thermostats to give homeowners flexible control without locking them into a proprietary platform. Backed by a 10-year limited parts warranty, the MRCOOL® Signature Series 24k Multi-Position Air Handler offers peace of mind along with powerful performance. With its durable build, energy-saving features, and flexible installation options, this air handler is the ideal solution for dependable, efficient home comfort.

Documents & manuals

Specifications

Capacity & efficiency
TypeAir handler (indoor unit)
SeriesSignature Series
Cooling capacity24,000 BTU
Nominal size2 tons
Airflow761 CFM
Sound level53 dBA
Electrical
Voltage208/230V
Phase1-phase
Min. circuit ampacity (MCA)2.4 A
Max. breaker (MOP)3 A
Refrigerant & line set
RefrigerantR-454B
Liquid line3/8"
Suction line3/4"
Physical
Indoor unit / mountingMulti-Position
Dimensions (in)19.625 W × 22 D × 45.75 H
Weight128 lb
Shipping weight141 lb
ColorGrey
Certifications, warranty & ordering
AHRI certifiedYes
Safety listingUL, ETL
Parts warranty10 years
UPC840255595858