MRCOOL
MRCOOL Signature 1.5 Ton up to 14.3 SEER2 18,000 BTU Split System Heat Pump
MCAESHS4T1821AA
17,000 BTU · 14.3 SEER2 · 208/230V · R-454B
Part of Signature Series – Complete Systems
- Cooling capacity
- 17,000 BTU1.5 tons
- Efficiency
- 14.3 SEER2
- Power
- 208/230V20A breaker
- Refrigerant
- R-454B
Call for pricing Add it to your cart and send us a quote request — or call 678-467-5515.
Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. Professional installation by a licensed HVAC contractor is required for the manufacturer warranty.
Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.
About this product
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.
Documents & manuals
Specifications
| Type | Complete system — heat pump (heats & cools) |
|---|---|
| Series | Signature Series |
| Cooling capacity | 17,000 BTU |
| Heating capacity | 17,000 BTU |
| Nominal size | 1.5 tons |
| SEER2 | 14.3 |
| EER2 | 11.7 |
| Heats down to | 5°F outdoor |
| Airflow | 1950 CFM |
| Sound level | 60 dBA |
| Voltage | 208/230V |
|---|---|
| Phase | 1-phase |
| Min. circuit ampacity (MCA) | 12.2 A |
| Max. breaker (MOP) | 20 A |
| Refrigerant | R-454B |
|---|---|
| Factory charge | 81.1 oz |
| Max. line length | 100 ft |
| Liquid line | 3/8" |
| Suction line | 3/4" |
| Dimensions (in) | 23.6 W × 23.6 D × 25 H |
|---|---|
| Weight | 144 lb |
| Shipping weight | 150 lb |
| Color | Grey |
| AHRI certified | Yes |
|---|---|
| Safety listing | UL, ETL |
| Parts warranty | 10 years |
| UPC | 840255595773 |

