Description
This MRCOOL Signature Series 2-ton heat pump split system pairs the MCAESHS4T2421AA R-454B heat pump condenser with the MCAEAMPSF24C21AA multi-position air handler (PSC blower). The combination is AHRI certified (AHRI #217513226) at 14.3 SEER2 and 11.7 EER2 with 7.5 HSPF2 heating, delivering 22,000 BTU/h of rated cooling. It is a straightforward, efficient replacement for an older R-410A split system and provides year-round heating and cooling.
What's Included
- 1 × MCAESHS4T2421AA — Signature Series 2 Ton R-454B heat pump condenser
- 1 × MCAEAMPSF24C21AA — Signature Series 2 Ton multi-position air handler, PSC motor
System Performance
| AHRI Reference Number | 217513226 |
|---|---|
| Cooling Capacity | 22,000 BTU/h |
| Heating Capacity (47°F) | 22,000 BTU/h |
| SEER2 | 14.3 |
| EER2 | 11.7 |
| HSPF2 (Region IV) | 7.5 |
| Refrigerant | R-454B |
| Power Supply | 208/230V, 1-Phase, 60 Hz |
Component Specifications
Heat Pump Condenser — MCAESHS4T2421AA
| Minimum Circuit Ampacity | 15.2 A |
|---|---|
| Maximum Fuse / Breaker | 20 A |
| Refrigerant Connections | 3/8" liquid, 3/4" suction |
| Sound Level | 60 dB(A) |
| Unit Dimensions (W x H x D) | 23.6" x 25" x 23.6" |
| Unit Weight | 144 lb |
| Cooling/Heating Capacity | 24k |
| SEER2 Rating | 14.3 |
| EER2 Rating | 11.7 |
| Refrigerant | Pre-charged with R-454B |
| Compressor | Single-speed scroll compressor for reliable, efficient operation |
| Heat Transfer | Inner-groove copper tubing for improved responsiveness and energy efficiency |
| Built-In Protection | Temperature and pressure sensors |
| Defrost Function | Intelligent defrost for extreme weather performance |
| Noise Level | Quiet operation at 60 decibels with sound-dampening top |
| Durability Features | Louvered coil guard and wire fan discharge grille |
| Service-Friendly Features | Sweat connection valves and accessible gauge port |
| Installation | Compact frame for flexible placement |
Multi-Position Air Handler — MCAEAMPSF24C21AA
| Blower Motor | PSC, 1/3 HP |
|---|---|
| Rated Airflow | 761 CFM |
| Minimum Circuit Ampacity | 2.4 A |
| Maximum Fuse / Breaker | 3 A |
| Unit Dimensions (W x H x D) | 19.6" x 45.75" x 22" |
| Unit Weight | 128 lb |
| Capacity | 24,000 BTU (2 ton) |
| Refrigerant | Compatible with R-454B (low-GWP) |
| Airflow Options | Upflow, downflow, horizontal configurations |
| Design | Slim, compact profile for space-limited installations |
| Cabinet | Galvanized steel for strength and corrosion resistance |
| Coils | Copper “A” coil with enhanced aluminum fins for efficient heat transfer |
| Insulation | Thermal insulation reduces energy loss and condensation |
| Filter | Built-in air filter rack for easy maintenance |
| Optional Accessory | Electric heat kit available |
| Smart Control | Works with most third-party thermostats |
Compatibility & Installation
- Electric heat: Add a Signature Series R-454B heat kit (5–15 kW) using the "Add an Electric Heat Strip" option above.
- Line set: Sweat connections, 3/8" liquid / 3/4" suction; line set not included.
- Thermostat: Standard 24V heat pump thermostat (not included).
- Professional installation: Licensed HVAC contractor required; R-454B is an A2L refrigerant.
