Description
The MRCOOL Signature Series MCAESAS4T4221AA is a 3.5-ton (42,000 BTU) air conditioner condenser factory charged with low-GWP R-454B refrigerant and AHRI rated up to 14.3 SEER2 / 11.7 EER2 with the matching Signature Series air handler. A single-speed scroll compressor, inner-groove copper tubing and a sound-dampening top make it a dependable, quiet replacement for older R-410A equipment.
The MRCOOL® Signature Series 42k Cooling Only Condenser is built to provide reliable, energy-efficient cooling for homeowners who want dependable performance and lower utility bills.
With a 14.3 SEER2 and 11.7 EER2 rating, this system offers consistent comfort while keeping energy consumption in check, making it a great fit for both replacement projects and new installations.Pre-charged with R-454B refrigerant, this unit complies with modern environmental regulations while maintaining strong cooling capacity and dependable performance.
At the heart of the system is a durable scroll compressor, engineered for steady, reliable operation over time with minimal wear. Inner-groove copper tubing maximizes surface area to improve thermal conductivity and heat transfer efficiency.Despite its robust output, the system operates quietly at 65 decibels, comparable to a household dishwasher.
A sound-dampening top minimizes operational noise without limiting airflow, making this unit ideal for residential areas where quiet performance is valued.For added durability, it features a steel louver coil guard and wire fan discharge grille to protect critical internal components.
The compact, lightweight design allows for flexible placement in tight spaces, while sweat connection valves and an easy-access gauge port make installation and maintenance straightforward.Backed by a 10-year limited parts warranty and a limited lifetime compressor warranty, the MRCOOL® Signature Series 42k Cooling Only Condenser delivers dependable protection and lasting value.
Key Features
- Scroll compressor: Dependable single-speed scroll compressor.
- R-454B refrigerant: Factory pre-charged A2L refrigerant for the current efficiency standards.
- Built-in protection: Temperature and pressure sensors guard the compressor.
- Quiet operation: About 63 dB with a sound-dampening top.
- Durable cabinet: Steel louvered coil guard and wire fan grille.
- Service-friendly: Sweat-connection service valves and an accessible gauge port.
- Warranty: 10-year limited parts and limited lifetime compressor warranty (registration required).
Product Specifications
| Minimum Circuit Ampacity | 26 A |
|---|---|
| Maximum Fuse / Breaker | 45 A |
| Refrigerant Connections | 3/8" liquid, 3/4" suction (sweat) |
| Sound Level | 65 dB(A) |
| Unit Dimensions (W x H x D) | 29.14" x 32.8" x 29.14" |
| Unit Weight | 185 lb |
| Brand | MRCOOL |
| Model | MCAESAS4T4221AA |
| Series | Signature Series (R-454B) |
| Cooling Capacity | 42k BTU |
| Efficiency Ratings | 14.3 SEER2 / 11.7 EER2 |
| Refrigerant | Pre-charged R-454B |
| Compressor | Scroll |
| Tubing | Inner-groove copper |
| Noise Level | 65 dB with sound-dampening top |
| Durability Features | Steel louver coil guard, wire fan discharge grille |
| Service Features | Sweat connection valves, easy-access gauge port |
| Design | Compact and lightweight for flexible placement |
Compatibility & Installation
- Matched system: Pairs with the Signature Series R-454B multi-position air handler (MCAEAMP) of the same tonnage.
- Line set: Sweat (brazed) connections; line set not included.
- Professional installation: Must be installed by a licensed HVAC contractor; R-454B is an A2L refrigerant.
