What is the correct procedure for initial power-up of a new Infinity Thermostat?

When power is first applied, the User Interface will display 'Establishing Communications With Equipment PLEASE WAIT,' followed by 'Searching For Equipment' and 'SEARCHING FOR OUTDOOR EQUIPMENT.' The system will automatically identify all Infinity components. You will then be asked to select the outdoor unit type (AC, HP, or None), enter the BTU size, select accessories (filter type, humidifier, UV lights), and review the Equipment Summary. After confirming all selections are correct, the system will perform a static pressure check, which takes about 1½ minutes to complete.