The Compressor is the "engine" of your HVAC system, responsible for circulating refrigerant and creating the pressure difference needed for heat exchange. At the heart of our Single-Zone units is a high-efficiency rotary or scroll compressor. Our Inverter Technology allows this compressor to change speeds, which is why OLMO systems are so quiet and energy-efficient. Because it is the most expensive part of the system, we protect it with a 5-to-10-year "Compressor Warranty." For our Multi-Zone systems, the compressor must be powerful enough to serve multiple indoor heads simultaneously. If the compressor fails, the cooling and heating process stops entirely. We use OEM compressors that are engineered for decades of service. Proper installation, including a deep "Vacuum Pump" pull, is the best way to ensure your compressor lasts. It is the most vital of all HVAC Components.