... Air Conditioners Heat Pump 1.One-touch LCD Control 2.Flexible installation,safe and efficiency 3.Green refrigerant R417 4OEM Portable Room Air Conditioners ... time-initiated, temperature-terminated defrost control· Brass liquid and suction line service valves· Unique sound control top design ... large clubhouse, swimming pool, laundry, restaurants, farms and so on. Portable Room Air Conditioners 18000BTU