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Error Messages:
!
Blank LCD
When the equipment is
powered up, a blank LCD
indicates that there is no power
to the thermostat. Check the
wiring from the thermostat to
the equipment for errors.
No Power Message
nP
is displayed when there is
no power to the system. If the
message is displayed when
the system is powered, check
the wiring from the thermostat
to the system for errors.
Sensor Error Message
nS
is displayed when there
is an error with the
temperature sensor(s).
Check for open wires or
shortages.
nS
When the
message is displayed, the thermostat will
continue to control the system and automatically opens
both dampers and disables airflow control until the
sensor error is corrected.
INSTALLER SECTION
Sleeping
Airflow %
Cool
Set To
Schedule
Living
Living
COOL
Day
Tu
SYSTEM
AM
AUTO
MENU
MODE
FAN
Sleeping
Airflow %
Cool
Set To
Schedule
Living
Living
COOL
Day
Tu
SYSTEM
AM
AUTO
MENU
MODE
FAN
page 14 of 16
!
Install batteries only after successfully testing
the installation using the Installer Test Menu.
INSTALL BATTERIES
The batteries power the clock
when 24VAC power is lost. Slide
the battery cover downward and
install the two AA batteries as
shown.
!
Press the touchscreen with your fingertip only,
using a firm touch. Do not use a sharp object
such as a pen or pencil. The touchscreen is a
resistive touch and responds differently than
touchscreens found in smart phones/devices.
Set Time and Day
Touch here to change the time
and day of the week.
AM
NEXT
ENTER
AM
NEXT
ENTER
We
AM
ENTER
Sleeping
Airflow %
Cool
Set To
Schedule
Living
Living
Day
Tu
SYSTEM
AM
MENU
MODE
CHANGE THE HOUR
Touch the UP/DOWN keys to
change the HOUR. Touch NEXT.
CHANGE THE MINUTE
Touch the UP/DOWN keys to
change the MINUTE. Touch NEXT.
CHANGE THE DAY OF THE WEEK
Touch the UP/DOWN keys to
change the DAY OF THE WEEK.
Touch ENTER to save and return to
normal thermostat operation.
P/N 780101703 3/18 Rev A
COOL
AUTO
FAN
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