27SPA618A003
24 = R454B Heat Pump 
S = Single Stage
P = Performance Series
A = Initial Series
6 = 16.0 SEER2
18 = 18,000 Btuh
A = Standard HP
0 = Standard
0 = Standard
3 = 208/230 ---1

Standard Features

• 14.3-17.5 / 10.0 - 13.5 EER2 / 7.5 - 7.8 HSPF2
• Sound: as low as 67 decibels
• Single-stage operation
• Compressor sound blanket
• Filter drier system protection from moisture and contaminants
• WeatherArmor Ultra^™ protection
• Non-ozone depleting and low global warming potential Puron^®Advance refrigerant
• 10-year parts limited warranty¹

Optional Features

• Optional labor warranty available

¹See warranty certificate for complete details