Description
Signature Series TruInverter 48K BTU Outdoor Condenser – Condenser ONLY – R-454B Heat Pump
Solution Statement
The MRCOOL Signature Series TruInverter 48K BTU Outdoor Condenser is engineered for HVAC professionals who demand peak performance in extreme conditions. Capable of delivering reliable cooling when outdoor temperatures reach 125°F and dependable heating down to -5°F, this condenser is built for any climate. Its advanced TruInverter technology eliminates temperature fluctuations, maintaining your home within 2°F of the set point. The pre-charged R-454B refrigerant system and “Free Match” universal compatibility make this an ideal replacement or new-install condenser for central ducted applications.
Key Features
- Industry-leading 18.0 SEER2 efficiency rating
- Reliable heating down to -5°F outdoor temperature
- Powerful cooling up to 125°F outdoor temperature
- Pre-charged with eco-friendly R-454B refrigerant (GWP 467)
- “Free Match” technology — compatible with most 3rd-party 24V thermostats and indoor units
- No complex communication wiring required
- Louvered coil guard and wire fan discharge grille for maximum protection
- Intelligent defrost function for cold-weather reliability
- Temperature and pressure sensors for smart diagnostics
- 10-year limited parts warranty + limited lifetime compressor warranty
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | MCAESHV8T4821BA |
| Series | Signature Series TruInverter |
| Nominal Capacity | 48K BTU/h |
| Cooling Capacity | 47,000 BTU/h |
| SEER2 | 18.0 |
| EER2 | 9.0 |
| Heating Capacity @ 47°F / 8.3°C | 47,000 BTU/h |
| Heating Capacity @ 17°F / -8.3°C | 35,000 BTU/h |
| Max Heating Capacity @ 5°F / -15°C | 33,000 BTU/h |
| HSPF2-4 | 8.5 |
| COP2 @ 47°F | 3.2 |
| Voltage | 208/230V – 60Hz – 1Ph |
| Refrigerant Type | R-454B |
| Refrigerant Pre-Charge | 141.09 oz (4000 g) |
| Min. Circuit Ampacity (Outdoor) | 35A |
| Max. Overcurrent Protection (Outdoor) | 60A |
| Outdoor Sound Pressure Level | 70 dB(A) |
| Net Dimensions (W×H×D) | 29.12" × 33.18" × 29.12" (740 × 843 × 740 mm) |
| Net Weight | 190 lbs (86 kg) |
| Gross Weight (Packaged) | 220 lbs (100 kg) |
| Compatible Indoor Unit | MCAEAMPVT48F21BA |
| Warranty | 10-Year Limited Parts + Lifetime Compressor |
Product Tips
Maintain a minimum of 12 inches on all sides and 24 inches above the unit for proper airflow and serviceability.
This unit ships pre-charged with 141.09 oz of R-454B. Verify charge level after installation using proper R-454B gauges.
For installations in regions that regularly experience temperatures below -5°F, consider supplemental heating.
Use only MRCOOL-compatible or properly rated R-454B line sets. Incompatible line sets may void the warranty.
Register within 30 days of installation to activate the full 10-year parts warranty and lifetime compressor warranty.
Frequently Asked Questions
No. This unit must be installed by a licensed HVAC professional. R-454B refrigerant handling requires EPA Section 608 certification.
The 48K BTU model is designed for systems requiring approximately 48K BTU of capacity. A Manual J load calculation is recommended.
Pre-charged with R-454B refrigerant (GWP 467). Ships with 141.09 oz (4000 g) of R-454B.
Yes. 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 35A, maximum overcurrent protection of 60A on a dedicated 208/230V single-phase 60Hz circuit.
Specifically matched with MCAEAMPVT48F21BA. “Free Match” technology also allows compatibility with most 3rd-party indoor units and 24V thermostats.
10-year limited parts warranty and limited lifetime compressor warranty when registered within 30 days of installation.
Annual professional maintenance including coil cleaning, refrigerant level verification, electrical connection inspection, and defrost cycle testing.
AHRI certified when paired with MCAEAMPVT48F21BA. Refer to the AHRI directory for certified performance data.
Warranty Information
Backed by a 10-year limited parts warranty and a limited lifetime compressor warranty when installed by a licensed HVAC professional and registered within 30 days.
