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T8624D CHRONOTHERM
®
IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS
7 69-1412—1
IMPORTANT
Review the settings to confirm that they match
the system. Press Run Program to exit the
Installer Setup. The thermostat has saved the
Installer Setup changes and initiated a reset in
order to operate using the new settings. Be sure
to set the current day and time immediately.
Setting Current Day and Time
1. Press Set Current Day/Time.
NOTE: On initial powerup or after an extended power
loss, 1:00 pm flashes on the display until a key
is pressed.
2. Press Day until the current day is displayed.
NOTE: Sun=Sunday, Mon=Monday,
Tue=Tuesday, Wed=Wednesday,
Thu=Thursday, Fri=Friday, Sat=Saturday.
3. Press Time ∆ or Time ∇ until the current time is dis-
played.
NOTE: Tapping the Set Current Day/Time changes the
time in one-hour increments.
Temperature
display
adjustment.
37 0 No difference in
displayed
temperature and
actual room
temperature.
-3 thru +3 1—Display adjusts to 1°F
higher than actual room
temperature.
2—Display adjusts to 2°F
higher than actual room
temperature.
3—Display adjusts to 3°F
higher than actual room
temperature.
-1—Display adjusts to 1°F
lower than actual room
temperature.
-2—Display adjusts to 2°F
lower than actual room
temperature.
-3—Display adjusts to 3°F
lower than actual room
temperature.
Furnace Air
Filter Timer.
43 2 30 days (System
run time).
0, 1, 3, 4 0 – Off
1 – 10 days
3 – 60 days
4 – 120 days
(Time counted when heat,
cool or fan is running.)
Humidifier Pad
Monitor.
44 0 Off 1, 2, 3 1 – 90 days
2 – 180 days
3 – 365 days
(Time counted by calendar
days in heat mode.)
Ultraviolet Air
Treatment (UV)
System Lamp
Monitor.
45 0 Off 1 1 – 365 days
(Time counted by calendar
days in any mode.)
Table 3. Thermostat Installer Setup Options. (Continued)
Select
Installer Setup
Number (Press
Time ∆ key to
change)
Factory Setting
Other Choices
(Press ! or " key to change)
Actual
SettingDisplay Description Display Description
M14619
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time
Set Current
Day/Time
Wake
Leave
Return Sleep
Day
Heat/Cool
Settings
Daylight
Time
Copy
Set Day/Time
Mon
PM
M14620
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return Sleep
Day
Day
Heat/Cool
Settings
Daylight
Time
Copy
Set Day/Time
PM
Tue
M14621
Time Set Program
System Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return Sleep
Day
Time
Heat/Cool
Settings
Daylight
Time
Copy
Set Day/Time
AM
Tue