Honeywell RTH7400D - Thermostat Operation; Understanding Controls and Display

39 69-1726—1
Get to Know Your Thermostat Buttons
Thermostat
M22316
UP ARROW BUTTON
RAISES TEMPERATURE SETTING OR
MAKES SELECTIONS IN OTHER SCREENS
DOWN BUTTON
LOWERS TEMPERATURE SETTING OR
MAKES SELECTIONS IN OTHER SCREENS
CLOCK &
MORE BUTTON
SELECTS TIME AND
FURNACE FILTER
INFORMATION
SYSTEM & FAN BUTTON
SELECTS FAN AUTO OR ON
SELECTS HEAT, OFF, COOL
AND EM HEAT
SCHEDULE BUTTON
SELECTS PROGRAMMING
MODE
PM
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