Description
The MRCOOL Signature Series MCAESHS4T1821AA is a 1.5-ton (18,000 BTU) heat pump condenser factory charged with low-GWP R-454B refrigerant and AHRI rated up to 14.3 SEER2 / 11.7 EER2 and 7.5 HSPF2 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 18k Heat Pump Condenser offers efficient, reliable comfort all year long. Rated at 14.3 SEER2 and 11.7 EER2, it delivers dependable heating and cooling while helping lower monthly energy bills. Whether upgrading an old system or installing new, this unit balances performance, efficiency, and value.Pre-charged with eco-friendly R-454B refrigerant, this unit supports reduced environmental impact while maintaining strong performance.
The pre-charged design streamlines installation and cuts labor time, making it ideal for both contractors and homeowners.At the heart of the system is a single-speed scroll compressor, engineered for stable, efficient operation. Inner-groove copper tubing enhances heat transfer, boosting responsiveness and energy efficiency. Built-in sensors monitor internal temperature and pressure, helping protect against extreme conditions.
An intelligent defrost function keeps the unit running smoothly in cold weather.Despite its power, the unit runs quietly at just 60 decibels, about as loud as the average dishwasher, with a specially-engineered sound-dampening top to reduce noise. Compact and lightweight, the unit installs easily in tight spaces.
And maintenance is simple with accessible service valves and gauge ports.A 10-year limited parts warranty and a limited lifetime compressor warranty offers added peace of mind. The MRCOOL® Signature Series 18k Heat Pump Condenser is a durable, efficient, and smart investment in home comfort.
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.
- Intelligent defrost: Demand defrost keeps heating output up in cold, wet weather.
- 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 | 12.2 A |
|---|---|
| Maximum Fuse / Breaker | 20 A |
| Refrigerant Connections | 3/8" liquid, 3/4" suction (sweat) |
| Sound Level | 60 dB(A) |
| Unit Dimensions (W x H x D) | 23.6" x 25" x 23.6" |
| Unit Weight | 144 lb |
| Brand | MRCOOL |
| Model | MCAESHS4T1821AA |
| Series | Signature Series (R-454B) |
| Cooling/Heating Capacity | 18k |
| SEER2 Rating | 14.3 |
| EER2 Rating | 11.7 |
| Refrigerant | Pre-charged with eco-friendly R-454B |
| Compressor | Single-speed scroll compressor for stable, efficient operation |
| Heat Transfer | Inner-groove copper tubing for enhanced efficiency and responsiveness |
| Built-In Protection | Sensors monitor temperature and pressure |
| Defrost Function | Intelligent defrost keeps unit running smoothly in cold weather |
| Noise Level | Quiet operation at 60 decibels, with sound-dampening top |
| Installation | Compact and lightweight for tight spaces; accessible service valves and gauge ports for easy maintenance |
Compatibility & Installation
- Matched system: Pairs with the Signature Series R-454B multi-position air handler (MCAEAMP) of the same tonnage or the stud-mount air handler (MCAEAWP).
- 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.
