MRCOOL
MRCOOL Signature 48,000 BTU Split System Air Handler Multi-Position
4 Ton | R-454B | 208/230V
- 4 Ton capacity
- Uses R-454B refrigerant
- Runs on 208/230V power
Key Specifications
Product Overview
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.
Additional specifications
| UPC | 840255595896 |
|---|---|
| Series | Signature Series Multi-Position Air Handler |
| Configuration | Multi-Position |
| Airflow (CFM) | 1549 |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 7.2 |
| Max fuse / breaker (A) | 10 |
| Blower motor type | ECM |
| Blower motor HP | 3/4 |
| Blower speeds | 5 |
| Metering device | Orifice |
| Drain connection (in) | 3/4 |
| Filter type | Replaceable |
| Filter size | 20 * 24 * 1 |
| Mount type | Multi-Position |
| Aux heater included | No |
| Aux heater available | Yes |
| Aux heater sizes (kW) | 5kW, 7.5kW, 10kW |
| AHRI certified | Yes |
| ENERGY STAR certified | No |
| UL listed | Yes |
| ETL listed | Yes |
| Parts warranty (years) | 10 Year |
| Compressor warranty (yrs) | Limited Lifetime |
| Shipping W x H x D (in) | 27.75 x 54.89 x 25.2 |
| Shipping weight (lbs) | 183 |
Documents
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Air Handler |
|---|---|
| Tonnage | 4 Ton |
| Sound Level | 57 dBA |
Electrical & Fuel
| Voltage | 208/230V |
|---|---|
| Phase | Single Phase |
| Refrigerant | R-454B |
| Connection Size | Liquid 3/8" / Suction 7/8" |
Physical & Certifications
| Dimensions (W x H x D) | 22 x 53.125 x 24.5 |
|---|---|
| Weight | 163 lb |
| Color / Finish | Grey |
Shipping & Delivery
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
Make sure it is the right size, and that you have the rest of it
Most outdoor units ship alone. If you are not certain of the capacity, or of what has to go with this unit, these two will work it out with you.
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