Most Popular｜MRCOOL® Signature 2 Ton 24K BTU Split System Multi-Position Air Handler, MCAEAMPSF24C21AA｜ Other Products

Product Description 
 
MRCOOL® Signature Series 24,000 BTU Multi-Position Air Handler
The MRCOOL® Signature Series 24k Multi-Position Air Handler (MCAEAMPSF24C21AA) is designed to deliver dependable comfort, flexible installation, and long-term reliability for residential HVAC systems using modern R-454B refrigerant.
Built to support upflow, downflow, or horizontal installation, this air handler adapts easily to a wide range of home layouts, including closets, attics, and crawl spaces. Its compact footprint makes it an excellent option where space is limited, while still providing the airflow needed to properly support a 2-ton system when paired with a compatible MRCOOL® condenser or heat pump.
The durable galvanized steel cabinet protects internal components from corrosion and daily wear. Inside, copper “A” coils with enhanced aluminum fins promote efficient heat transfer and improved humidity control. Full internal insulation reduces condensation and energy loss, helping maintain consistent indoor comfort while keeping operating noise low.
This model uses a PSC blower motor, offering straightforward reliability and proven performance. A built-in filter rack allows for quick filter changes, and compatibility with optional electric heat kits (5kW, 7.5kW, or 10kW) makes it easy to add auxiliary heat for colder climates.
Smart-home ready and compatible with most third-party thermostats, the MRCOOL® Signature Series 24k Multi-Position Air Handler gives homeowners flexibility without being locked into proprietary controls. Backed by a 10-year limited parts warranty, it’s a practical, efficient solution for long-term home comfort.
 
 
COMPATIBILITY
✔ MRCOOL® Signature Series Top-Discharge Condensers
✔ Heat pumps and cooling-only condensers using R-454B
✔ Optional electric heat kits for auxiliary or emergency heat. Compatible heat kits listed below. 1. 5kw,     Model- MCAEHFD5X1AA
2. 7.5kw   Model- MCAEHFD7X1AA
3. 10kw    Model- MCAEHFD10X1AA
 
TECHNICAL SPECIFICATIONS 
Brand: MRCOOL
Series: Signature Series
Model: MCAEAMPSF24C21AA
Unit Type: Air Handler
 
Capacity: 24,000 BTU
Tonnage: 2 Ton
CFM: 761
 
Installation Type: Multi-Position (Upflow / Downflow / Horizontal)
Voltage: 208/230V
Phase: 1
Frequency: 60 Hz
 
Blower Motor Type: PSC
Blower Motor HP: 1/3
Blower Speeds: 3
 
Refrigerant Type: R-454B
Metering Device: Orifice
 
Auxiliary Heat Compatible: Yes
Available Heat Kit Sizes: 5kW, 7.5kW, 10kW
 
Decibel Rating: 53 dBA
Color: Grey
 
DIMENSIONS & WEIGHT
Net Dimensions:
• Width: 19.625”
• Depth: 22”
• Height: 45.75”
• Weight: 128 lbs
Gross Dimensions:
• Width: 22.83”
• Depth: 25.6”
• Height: 47.625”
• Weight: 141 lbs
 
FREQUENTLY ASKED QUESTIONS
What makes this different from the ECM versions?
This model uses a PSC blower motor, offering proven reliability and simpler electrical requirements compared to ECM models.

Can this be installed horizontally?
Yes. It supports upflow, downflow, and horizontal installations.

Does it include a heat kit?
No. Heat kits are optional and sold separately.

Which condensers work with this air handler?
MRCOOL® Signature Series top-discharge condensers designed for R-454B systems.

Is professional installation required?
Yes. Installation should be performed by a licensed HVAC professional.
 
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!
Feel Free to call us anytime. Family Friendly help just a dial away. We love talking HVAC615-553-8118
Family owned & USAs #1 MRCOOL® Authentication Dealer.
 
Brand:MRCOOL®Category:AIR HANDLERSKU:MCAEAMPSF24C21AATags:2 Ton Air Handler, 24k Air Handler, HVAC Air Handler, MCAEAMPSF24C21AA, MRCOOL, MRCOOL Air Handler, Multi-Position Air Handler, R-454B, Signature Series, Split System Air Handler