Honeywell RTH6400 - Manual (Page 6)

Operating Manual
69-22ES—0 4
Quick reference to controls
M28401
Digital display (see page 5). Battery holder (see page 15).
Temperature buttons
Press to adjust temperature
settings (see pages 11-13).
Hold button
Press to override programmed
temperature control (see page 13).
Function buttons
Press to select the function displayed just above each button.
(Functions change depending on the task.)