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TH144 400-144-000-C 2008-02-08 4/6
3.1 Program Your Schedule
The TH144 allows four setting changes for each day of the week.
There are no pre-set programs.
For each day, enter the time at which you wake up (P1), the time you
leave for work (P2), the time you return home (P3) and the time you
go to bed (P4):
NOTE: For temperature increases (P1 and P3), allow at least 15
minutes per 1°C (2°F). For example, if you have lowered the temper-
ature by 3°C (6°F) during the night and you wake up at 7 a.m., pro-
gram the change for 6:15 a.m.
To reduce energy costs, you must lower the temperature for a period
of 2 to 3 times the delay required to bring the temperature back to
your comfort level.
3.1.1 Set or Modify the Programs
• After 60 seconds of inactivity, the thermostat will automatically exit
programming mode.
• It is sometimes faster to program the same schedule for the entire
week and then modify the exception days.
n Press Program. MO and P1 are displayed.
o If necessary, press Day to select the day to be programmed or
hold
Day for 3 seconds to select all days of the week.
p Press Hour and Minute to set the start time.
NOTE: To clear an entry, press Clear; the time zone indicates
(- - : - -) when the program is inactive.
q Press Program to select the next program.
r Repeat steps 2 to 4 for remaining programs.
s Press Mode/Return to exit.
3.1.2 Programming Example
Comfort (programs 1 and 3):
• starts at 6:00 a.m. and 4:00 p.m. from Monday to Friday
• starts at 6:00 a.m. on Saturday and Sunday
Economy (programs 2 and 4):
• starts at 8:30 a.m. and 11:00 p.m. from Monday to Friday
• starts at 11:00 p.m. on Saturday and Sunday
To program this schedule
n Press Program. MO and P1 are
displayed.
o Press and hold Day for 3 seconds to
select all days of the week
(
MOTUWETHFRSASU).
p Set the time (6:00) for P1 using Hour
and
Minute.
q Press Program to select P2. Set the
time (8:30) using
Hour and Minute.
r Press Program to select P3. Set the
time (4:00 p.m.) using
Hour and
Minute.
s Press Program to select P4.
Set the time (11:00 p.m.) using
Hour and
Minute.
t Press Mode/Return to exit
To erase programs 2 and 3 for
Saturday and Sunday
n Press Program to access programming mode.
o Press Program until P2 is selected.
p Press Day to select Saturday (SA) and press Clear.
q Press Day to select Sunday (SU) and press Clear.
r Repeat steps 2 to 4 for P3.
s Press Mode/Return to exit.
3.2 Select the Operating Mode
The TH144 offers 2 operating modes:
3.2.1 Automatic
This mode executes the programmed schedule.
To activate:
Press
Mode/Return until is displayed. The
associated program setpoint icon is also displayed.
NOTE: This mode can be bypassed for up to
two hours (see 4.2).
3.2.2 Manual
Maintains a constant temperature. To activate:
n Press Mode/Return until is displayed.
o Set temperature OR quickly press or
or to use a pre-defined setpoint.
p
Programming
3.
Programs Associated Setpoint Time
P1
(Comfort)
Wake up
P2
(Economy)
Leave home
P3
(Comfort)
Return home
P4
(Economy)
Night
PROG MON TUE WED THU FRI SAT SUN
1 6:006:006:006:006:006:006:00
2 8:30 8:30 8:30 8:30 8:30 --:-- --:--
3
PM
4:00
PM
4:00
PM
4:00
PM
4:00
PM
4:00 --:-- --:--
4
PM
11:00
PM
11:00
PM
11:00
PM
11:00
PM
11:00
PM
11:00
PM
11:00
Temperature setpoint
using arrow buttons.
Fixed setpoint auto-
matic changeover *
Temperature setpoint
using a predefined set-
point button.
Heat and Cool setpoints
are used for automatic
changeover *
* if you are using the automatic changeover mode, see 2.1 and 4.4.
400-144-000-C (TH144_HVAC) ENG.fm Page 4 Friday, February 8, 2008 10:33 AM