MRCOOL 4 Ton 14 SEER Split System Air Handler, - MAHM048CTA
The MRCOOL Multi-Position Air Handler is designed to deliver dependable comfort, and is built for reliability. The permanent split capacitor (PSC) motor delivers consistent airflow throughout the seasons, allowing you to remain relaxed at all times. When choosing a MRCOOL Multi-Position Air Handler, you can always know that you are being energy and time efficient.
Features
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Smaller profile for closet applications
- Optional auxiliary heat kits are available
- Baked polyester paint finished over galvanized steel for maximum durability
- Antimicrobial treated drain pan to resist mold and mildew growth
- Factory tested for leakproof construction
- Foil faced insulation for enhanced indoor air quality
- CoolGuard total corrosion protection technology designed coil
- Built-in indoor time delay for increased efficiency and comfort
- One piece design
- High-strength/heat resistant/corrosion resistance SMC drain pans
- Multi-position = Upflow/Horizontal Left/Right
Specifications
| Product Dimensions |
21.25"W x
19.5"D x
55"H |
| Product Weight |
186 lbs |
| SEER |
Up to 14.5 |
| CFM |
1600 |
| Tonnage |
4 |
| Cooling Capacity |
48,000 BTU |
| Voltage |
Requires a minimum of 208V-230V/60HZ/5-15A (please check your home meets this electrical requirement prior to purchase) |
| Phase |
1 |
| Cycle |
60 |
| Max Fuse Breaker |
15 |
| Min Circuit Ampacity |
5 |
| Color |
Gray |
| Color Family |
Gray |
| Max Coverage Area |
2,000 Square Feet |
| Refrigerant Type |
R-410A |
| Number of Speeds |
3 |
| Inverter |
No |
| Lineset Included |
No |
| Lineset Length |
15ft, 25ft, 35ft, 50ft |
| Max Lineset Length |
50ft |
| Lineset Fitting Type |
Sweat |
| Liquid Line Size |
3/8 |
| Suction Line Size |
7/8 |
| Blower Motor Type |
PSC |
| Blower Motor HP |
1 |
| Blower Motor Speeds |
3 Speed |
| Blower Motor RPM |
1110-1760 |
| Filter Type |
Replacement |
| Filter Size |
18x20 |
| Auxiliary Heater Included |
No |
| Auxiliary Heater Available |
Yes |
| Auxilary Heater Sizes |
7.5kw, 10kw, 15kw, 20kw |
| Contains Electronics |
Yes |
| Contains Chemicals |
Yes |
| Contains Aerosol |
Yes |
| Contains Compressed Gas |
Yes |
| Proposition 65 Warning |
Yes |
What our Experts Think
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Balanced Cooling Performance – 4-ton capacity with 14 SEER rating offers dependable comfort for larger homes and spaces.
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Versatile Installation – Multi-position air handler accommodates upflow and horizontal (left/right) applications for flexible HVAC layouts.
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Enhanced Coil Durability – Corrosion-resistant evaporator coil supports long service life and consistent heat transfer.
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Improved Indoor Air Quality – Foil-faced insulation and antimicrobial-treated drain pan help reduce mold and moisture issues.
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Energy-Conscious Design – Efficient operation helps manage energy costs while maintaining reliable performance.
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Sturdy Construction – Galvanized steel cabinet with protective finish for long-term durability.
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Professional System Integration – Engineered to pair seamlessly with compatible outdoor units and optional auxiliary heat kits.
Q&A
Q: What is the MRCOOL MAHM048CTA air handler for?
A: A 4 ton split system air handler that circulates conditioned air in residential HVAC setups when matched with a compatible outdoor unit.
Q: How energy efficient is it?
A: It supports up to 14 SEER performance, helping lower operating costs with balanced comfort and efficiency.
Q: What systems does it pair with?
A: Designed for use with MRCOOL split-system air conditioners and heat pumps sized for 4 ton capacity.
Q: Does it support both cooling and heating?
A: Yes — when paired with a heat pump, it delivers both cooling and heating airflow.
Q: Is installation adaptable?
A: Yes — multiple configuration options make it suitable for various home installations.
Q: Who should choose this model?
A: Homeowners needing a high-capacity, reliable air handler for efficient whole-home climate control.
Maintenance Tips
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Check and clean/replace filters monthly to improve airflow and efficiency.
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Clean evaporator coils at least twice a year to maintain cooling capacity and energy performance.
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Inspect and clear the condensate drain line seasonally to prevent clogs and moisture issues.
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Ensure the installation area stays clear of debris or obstructions to support proper airflow.
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Monitor for unusual sounds, odors, or weak airflow and address issues quickly.
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Schedule annual professional maintenance for system checks, refrigerant level inspection, and safety.
Damage 
Loss 
Theft 
