Honeywell CHRONOTHERM IV T8665A - Manual (Page 7)

7 69-1536–3
KEYBOARD AND DISPLAY DESCRIPTION
Keyboard
The keyboard is located behind the thermostat cover. Three frequently used keys, increase ▲ or decrease ▼
and , are located next to the display. See Fig. 1.
Display
The thermostat displays important information such as day, time, schedule period, temperature, system and fan
operation. See Fig. 2.