York ARTTP001S, User Manual, Page: 7 / 16

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4 - Operating the thermostat
To lower the
Setpoint
Hold
Program
Set temp
Clock
Resume
Fan
Mode
Outdoor
To raise the
Setpoint
Press to set the
real time Day,
Hour and Minute Press to display the
outdoor temperature
(Optional)
Press to select
Heat/Cool/Auto/Off. The
word is displayed for 5
seconds. (E Ht for SHP-2)
Select for continuous Fan
or Auto Fan
Press to exit the hold or
override program, or when
programming is complete
Press to set the Heating
& Cooling setpoints
Press to set the program
days and times
Press to hold the current setting.
The program will hold indefinitely
or until RESUME is pressed
4.2 - Description of icons
Outdoor Temperature icon
Morning, Evening,
Day, Nights icons
Temporary Temperature
Override icon
Daylight Saving
Time icon
Wrench or fault icon
5 second display when heat mode
is selected and when the heating
set point is changed
5 second display when cool mode
is selected and when the cooling
setpoint is changed
5 second display when the auto
mode is selected
Displayed when in the off mode
Displayed when in the emergency
heat mode Normally displays the
current time
Displays programming times in pro -
gram mode
Heat icon, two flickering lines
when heat is on
Cool icon Flickers when the
cooling is on
Keypad Locked icon
Filter icon
Fan icon
Days of the week
Displays indoor or outdoor tem -
perature.
Displayed when setpoints are
showing
Progressive recovery flashes
when active
Location of icons on LCD
Mo Tu We
Th Fr Sa Su
4.3
Power Failures During Regular Program Schedule.
Should your power fail at any time during the regular program, the
thermostat will maintain the clock internally for up to 2 hours. If the
power has not been restored during this time period, the clock will
stop. When the power is restored, the thermostat clock defaults to
a flashing 12:00 AM.
The thermostat will be held in the Night
program until the user resets the clock. The thermostat will dis-
play AC when the 24 VA C is not powered. One of the unique fea-
tures of your thermostat is that there is no battery required to the
maintain your selected setpoints in the event of a power loss,
since the memory is unaffected by power failures of any duration.
There is no reason to reprogram the setpoint temperatures or start
times since the thermostat will retain these program parameters.
4.1