Replace Unit #2 With New Trane 5 Ton RTU With Curb Adaptor With WiFi Programmable Thermostat Replace Unit #3 With New Trane 10 Ton RTU With Curb Adaptor With WiFi Programmable Thermostat Replace Unit #4 With New Trane 12.5 Ton RTU With Curb Adaptor With WiFi Programmable Thermostat Replace Unit #6 With New Trane 12.5 Ton RTU With Curb Adaptor With WiFi Programmable Thermostat