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Option 18* — Backlight Configuration
Option 19 — Dry Contact (programmable models only)
Option 20 — Outdoor Air Temperature Offset Adjustment
Option 21* — Keypad Lockout
Option 24* — Programmable/Non−Programmable
(programmable models only)
Option 25* — Number of Programmable Periods per Day
(programmable models only)
Option 26 — Minimum Cooling Setpoint
Option 27 — Maximum heating Setpoint
Option 28 — UV Light Reminder
Option 29 — Humidifier Pad Reminder
Option 30* — Programmable Fan (programmable models only)
Option 31* — Daylight Savings Time Configuration
(programmable models only)
Option 32 — Furnace Heat Staging
Option 33 — Single or Two−Piece Installation
Option 41 — Variable Speed Blower
Option 44 — Super Comfort Heat
Option 99 — Reset to Factory Defaults
TO ENTER CONFIGURATION MODE
Press and hold FAN button for approximately 10 sec. The Display Module is
now in configuration mode. It will automatically exit this mode if no button is
pressed for 3 minutes. Pressing either FAN or DONE button will exit
configuration mode immediately.