Carrier's commitment to quality engineering and construction is easy to see. Put the 38YKC next to a typical competitor's product and you can see the difference between run-of-the-mill technology and top-quality. What you can't see is Carrier's commitment to your comfort. The only way to experience that commitment is to enjoy a winter day in your warm, cozy home, or to relax in cool comfort on a hot, summer day. The Indoor Weather Expert, your Carrier dealer, can provide this comfort for you, with Carrier's 38YKC heat pump. 1. The unique design of Carrier's Silencer System reduces air turbulence through the unit for reduced sound levels. 2. Scroll compressor ensures reliable performance and provides energy-efficient indoor weather year after year. 3. Copper Tube/Aluminum Fin Coil provides superior heat transfer, energy efficiency and maximum corrosion resistance. 4. High and low pressure switches ensure dependable operation by protection the compressor from extreme conditions. 5. Filter drier provides improved reliability by preventing the formation of acids that cause corrosion in the system. 6. Microprocessor control board controls the heat pump and ensures the system is running properly. 7. Compressor vibration isolator plate prevents vibration from transmitting into the base pan, minimizing operational sound. 8. Sound hood made of vinyl with fiberglass insulation wraps the compressor to muffle noise from operation. 9. Discharge muffler reduces refrigerant pulsation sounds for quiet heat pump operation. 10. Base pan reduces chances for corrosion through proper drainage of water and small debris. 11. Back seating service valves provide lead-resistant seals to protect our environment from liquid refrigerant. Each valve also features a corrosion-resistant brass body. 12. Weather-Armor cabinet maintains the clean appearance of your heat pump, with a tough corrosion and scratch resistant finish and ceramic-coated screws prevent rust streaks. 13. Fan and motor reduce noise by moving air through unit efficiently. 14. Accumulator reliably stores excess compressor charge for maximum system operation.