Description
Signature Series TruInverter 48K BTU Indoor Air Handler – Air Handler ONLY – R-454B
Solution Statement
The MRCOOL Signature Series TruInverter 48K BTU Multi-Position Air Handler delivers precision inverter-driven comfort for central ducted HVAC applications. Its “Free Match” universal compatibility and flexible 4-way installation orientation make it the ideal solution for new construction and system replacements alike. Paired with the matching TruInverter condenser, it forms a complete high-efficiency heat pump system using eco-friendly R-454B refrigerant. Designed for HVAC professionals who demand reliability, serviceability, and efficiency in a single package.
Key Features
- Advanced TruInverter technology maintains temperature within 2°F of your set point
- 4-way installation flexibility: upflow, downflow, horizontal left, horizontal right
- Eco-friendly R-454B refrigerant (GWP 467 — significantly lower than R-410A)
- Slide-out blower for fast, tool-free service access
- Tool-free filter removal with manual-twist screws
- Smart diagnostics with integrated intelligent error codes
- “Free Match” technology — compatible with most 3rd-party 24V thermostats
- No complex communication wiring required between indoor and outdoor units
- 10-year limited parts warranty (with registration)
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | MCAEAMPVT48F21BA |
| Series | Signature Series TruInverter |
| Nominal Capacity | 48K BTU/h |
| Cooling Capacity | 47,000 BTU/h |
| Heating Capacity @ 47°F / 8.3°C | 47,000 BTU/h |
| Heating Capacity @ 17°F / -8.3°C | 35,000 BTU/h |
| SEER2 | 18.0 |
| HSPF2-4 | 8.5 |
| COP2 @ 47°F | 3.2 |
| Voltage | 208/230V – 60Hz – 1Ph |
| Refrigerant | R-454B |
| Min. Circuit Ampacity (Indoor) | 7A |
| Max. Overcurrent Protection (Indoor) | 15A |
| Airflow Volume | 1600 CFM |
| Indoor Sound Pressure Level | 60 dB(A) |
| External Static Pressure | 0.8 in.w.c. |
| Net Dimensions (W×H×D) | 24.5" × 56" × 21" (622 × 1422 × 533 mm) |
| Net Weight | 161 lbs (73 kg) |
| Gross Weight (Packaged) | 204 lbs (92.5 kg) |
| Compatible Outdoor Unit | MCAESHV8T4821BA |
| Installation Type | Multi-Position (4-way) |
| Warranty | 10-Year Limited Parts |
Product Tips
This unit requires a dedicated 208/230V circuit. Confirm your panel has capacity before ordering.
Line sets are not included. Select the appropriate length for your installation distance (16 ft, 25 ft, 35 ft, or 50 ft).
Register within 30 days of installation to activate the full 10-year limited parts warranty.
Clean or replace the air filter every 1–3 months depending on usage and air quality to maintain peak efficiency.
This unit must be installed by a licensed HVAC technician. Improper installation may void the warranty.
Frequently Asked Questions
No. The Signature Series TruInverter Air Handler requires installation by a licensed HVAC professional. R-454B refrigerant handling requires EPA Section 608 certification.
The 48K BTU model is designed for spaces requiring approximately 48K BTU of capacity. A Manual J load calculation is recommended for accurate sizing.
This unit uses R-454B refrigerant, a next-generation low-GWP (467) refrigerant significantly more eco-friendly than R-410A.
Yes. The TruInverter system provides reliable heating down to -5°F. At 17°F, it delivers 35,000 BTU/h of heating capacity.
No. Line sets are sold separately in 16 ft, 25 ft, 35 ft, and 50 ft lengths.
Minimum circuit ampacity of 7A, maximum overcurrent protection of 15A on a 208/230V single-phase 60Hz circuit.
Yes. “Free Match” technology allows compatibility with most standard 3rd-party 24V thermostats.
10-year limited parts warranty when registered within 30 days of installation by a licensed HVAC professional.
Clean or replace the air filter every 1–3 months. Annual professional inspection recommended. The slide-out blower design makes service access fast and easy.
Yes. AHRI certified when paired with the matching outdoor condenser MCAESHV8T4821BA. Refer to the AHRI directory for certified performance data.
Warranty Information
Backed by a 10-year limited parts warranty when installed by a licensed HVAC professional and registered within 30 days of installation.
