Auto Changeover; Setting Functions And Options - Honeywell RTH8580ZW User Manual

Auto changeover

This feature is used in climates where both
air conditioning and heating are used on the
same day.
When the system is set to AUTO,
the thermostat automatically
selects heating or cooling
depending on the indoor temperature.
Heat and cool settings must be at least
3 degrees apart. The thermostat will
automatically adjust settings to maintain this
3-degree separation.
Note: System setting function 0300 controls
Auto changeover. See "System setup" on
page 18.

Setting functions and options

You can change options for a number of system functions. Available functions depend on
the type of system you have. The functions, designated with four-digit numbers, along with
available options are described on pages 17–20.
This thermostat is pre-set for a single-stage heating/cooling system.
Setting function 0170 for a heat pump will adjust the default settings.
1 Press SYSTEM. You'll see several blank buttons
on the bottom of the display.
2 Press and hold the buttons on either side of
the center button until the screen changes
(approximately 5 seconds).Cycle through the
functions, press
number on the left.
3 As needed, change options for any function by
pressing
st
4 When you have made all changes, press
to save and exit.
33-00131ES—01
next to the four digit
st
next to the number on the right.
SYSTEM
FAN
HEAT
AUTO
SYSTEM
HEAT
FAN
AUTO
DONE
DONE
DONE
16
TUE
SUN
70
70
Inside
Set To
TUE
SUN
6:01
AM
70
70
Inside
Set To
20
0120
CANCEL