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TH144 400-144-000-C 2008-02-08 3/6
I
2.1 Select the Control Mode
The mode indicates which system is used for temperature control.
Use the Heat / Cool button to select one of the following modes:
2.2 Predefined Setpoints
Predefined setpoints represent the temperature that you wish to have
during the day, at night or while you are away. The Comfort and
Economy setpoints are used with the Automatic mode (schedule, for
programmable models) while the Unoccupied setpoint can be used
with the Unoccupied mode (activated manually or remotely). This
table displays the default setpoints:
2.2.1 To Modify the Predefined Setpoints
NOTE: If your thermostat controls both HEATING and COOLING, the
predefined setpoints must be configured for both applications.
NOTE: The Cool setpoints cannot be lower than the Comfort Heat
setpoint. If this should happen, the TH144 will automatically set your
Cool setpoint 1°C (1°F) higher than your Comfort Heat setpoint.
2.3 View the Current Setpoint
To view the current setpoint, briefly press one
of these buttons once. The arrow
indicates the setpoint.
o
Basic Configuration
2.
Programmable models only. Automatic Operating mode is
executing your schedule.
This icon is always displayed with the or icon which
represent the programs setpoints.
Programmable models only. Manual Operating mode. This
icon is either displayed alone (a manual setpoint was set) or
with the or icon
Comfort setpoint. Associated with programs 1 and 3.
Can also be used with manual mode or during a bypass.
Economy setpoint. Associated with programs 2 and 4.
Can also be used with manual mode or during a bypass.
Unoccupied setpoint. Activated from the TH144 or remotely
(REM input is connected to a remote system)
The fan runs continuously.
The heating system is ON.
The air conditioning system is ON.
Select
operating
mode
To adjust the temperature or to
view a setpoint (press once)
Time and
day settings
Schedule
programming
Comfort
setpoint
Select fan
mode
Select
control
mode
Economy
setpoint
Unoccupied
setpoint
NON PROGRAMMABLE
PROGRAMMABLE
Unoccupied mode
is activated
(yellow LED is on)
Current time
(see 1.5)
Room temperature OR
setpoint (arrow)
REM = temperature is
controlled using AC144-02
(see 1.4)
OUT = outside temperature
from the connected
AC144-02 (see 1.4)
Current control
mode (see 2.1)
See table below
Current day (see 1.5)
HEAT
Controls the heating unit(s).
COOL
Controls the cooling unit(s).
OFF
Both units (HEAT and COOL) are OFF. The fan function
is still enabled but no setpoint changes are allowed.
AUTO
Automatic changeover. Automatically alternates
between HEAT and COOL. See section 4.4 for details.
Symbol
Predefined
Setpoint
HEAT COOL
Comfort 21°C (70°F) 25°C (78°F)
Economy 17°C (62°F) 28°C (82°F)
Unoccupied 10°C (50°F) 35°C (95°F)
HEAT
COOL
400-144-000-C (TH144_HVAC) ENG.fm Page 3 Friday, February 8, 2008 10:33 AM