Auto Changeover - Honeywell RTH7400 Series Owner's Manual

Auto changeover

Use this feature in climates where both air conditioning and heating are
used on the same day. When the system mode is in Auto, the thermostat
automatically selects heating or cooling depending on the indoor temperature.
While in the Auto mode, if a schedule override takes place (temporarily or
permanently) the thermostat will automatically adjust the cooling and heating
settings to maintain a 3-degree separation between the cool and heat settings.
For example, if the heat temperature is
raised to where it gets within 3-degrees
of the cool setting, the display will show
an up arrow next to "Cool" to show the
thermostat is raising the cool setting up
to maintain a 3-degree separation.
The display will also show both "Auto"
and either "Heat" or "Cool" for which
temperature setting you are currently
adjusting. Press the system button to
select between the heat and cool to
view/adjust either mode.
CAUTION: To avoid possible compressor damage, do not use Auto
Changeover if the outside temperature drops below 50°F (10°C).
Filter reminder
If activated during installation, the
furnace filter reminder alerts you
when it is time to replace your
filter.
Press RESET after changing the
filter, to restart the timer.
To reset the reminder interval
before it expires:
1. Press MORE, then NEXT.
2. Press RESET.
3. Press DONE to save and exit.
Tue
69
System Auto
Heat
System
Change Filter
70
System
Heat
Reset
Reset
17
Temporary
Set To
1 : 09
PM
Fan Auto
Hold Cancel
Set to
70
6 : 01
AM
Heat On
Fan Auto
Schedule Clock & More
MCR28089
60
Days
Next Done
MCR28090
Heat
Cool
MCR27486