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5
5. Press the done button.
6. Close the thermostat door.
BACKLIGHTING — The thermostat may feature a low level
amount of backlighting until a button is pressed, which increas-
es the lighting temporarily. The user can adjust the intensity of
the backlighting or turn it off completely. The range is off (OF),
and 1 to 5 levels of brightness. To change the backlighting lev-
el, perform the following:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 03. The
number 3 (the default backlight setting) will be displayed
next to it.
4. To increase the backlight level, press the rightmost soft
button and then press the up arrow button until 4 or 5 ap-
pears. To decrease the backlight level, press the rightmost
lower button and then press the down arrow button until 2
or 1 is shown. Change the setting to OF to completely re-
move backlighting.
5. Press the done button.
6. Close the thermostat door.
KEYPAD LOCKOUT — The keypad lockout feature lets the
user “lock” the thermostat at one of three levels. these levels in-
creasingly limit any one using the thermostat’s ability to make
changes. The levels are:
• OF — the feature is turned off
• 1 — a user can change the temperature settings, the time
of day, and the day of the week only
• 2 — a user can change the temperature settings only
• 3 — the entire thermostat is locked, no changes can be
made
Perform the following to set the lockout level of the
thermostat:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 04. The OF
icon (the default lockout setting) will be displayed next to
it.
4. Press the rightmost soft button and then press the up ar-
row button until the desired lockout level is shown. A
padlock icon will be shown if options 1 through 3 are
chosen.
5. Press the done button.
6. Close the thermostat door.
To temporarily unlock the keypad, open the thermostat door.
Press and hold the up and down buttons simultaneously for
about 5 seconds. The padlock icon will disappear. This means
the keypad is unlocked and can be used. The keypad will revert
back to the locked state after no buttons are pushed for 2 min-
utes. Close the door.
PROGRAMMABLE / NONPROGRAMMABLE SET-
TING — It is possible to convert the thermostat operation
from programmable to nonprogrammable. This eliminates the
advanced features. When switching to the nonprogrammable
format, the programming, hold, holiday and Smart Recovery
features are lost. Switching to nonprogrammable operation also
means that some of the thermostat’s energy saving features are
lost. The time of day and day of the week will still show on the
display and the user will still be able to increase or decrease the
temperature settings manually.
To switch thermostat operation, perform the following:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 05. The P
icon (the default setting) will be displayed next to it.
4. Press the rightmost soft button and then press the up ar-
row button until the desired operation is shown. P stands
for programmable and nP stands for non-programmable.
5. Press the done button.
6. Close the thermostat door.
NUMBER OF PROGRAMMING PERIODS — The ther-
mostat is preset with four programmable time periods. This can
be changed to two. To change the number of time periods, per-
form the following procedure:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 06. The
number 4 (the default setting) will be displayed next to it.
4. Press the rightmost soft button and then press the up ar-
row button until the desired number of time periods is
shown.
5. Press the done button.
6. Close the thermostat door.
DAYLIGHT SAVINGS TIME — The thermostat will auto-
matically change the clock according to daylight savings time
procedures twice a year. Some areas do not use daylight sav-
ings time. To turn off the daylight savings time feature, perform
the following procedure:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 08. The ON
icon (the default setting) will be displayed next to it.
4. Press the rightmost soft button and then press the up ar-
row button until the desired number setting (OF) is
shown.
5. Press the done button.
6. Close the thermostat door.
Service Reminders — The thermostat tells the user
when it is time to change the UV light, change the filter, or per-
form scheduled maintenance. Each reminder will be displayed
on the upper left of the screen. For important safety reasons, do
not change a UV light; ask your dealer to replace the UV light.
To remove the reminder after the service has been performed,
press and hold the done button for about 3 seconds.
Outdoor Temperature Display — The thermostat
automatically displays the outdoor temperature when the ther-
mostat door is closed.
Auto Changeover — The thermostat displays one of
five modes: heat, cool, Em heat (heat pump version only), heat
cool (auto mode) and off. When the mode selection is auto
mode, the system is allowed to switch from heating to cooling
or from cooling to heating to maintain the temperature set
points.
Smart Recovery — The Smart Recovery feature transi-
tions the space from one temperature period (occ, occ2, occ3,
unocc) to the next so that the space temperature matches the
temperature set point at the start of each time period. This