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TH147E-P & TH148ELE-P 400-147-016-C 2008-01-08 2/4
2.4 Connecting the Heating System
2.5 Unoccupied Mode Input
(
TH148ELE-P only
)
TH148ELE-P has an input that can be used to lower the temperature
when the house is unoccupied. You can connect an Aube’s CT240
telephone controller (optional) or another remote control system.
When the thermostat receives a 12-VDC signal, it switches to the
unoccupied mode where the setpoint programmed for that mode is
used (see section 5). When the signal is removed, the thermostat
returns to the previous mode.
2.5.1 Connecting to CT240
Connect TH148ELE-P terminals UN and UN to
CT240 terminals A and C (no polarity to observe).
2.5.2 Connecting to a Home Automation System
Connect TH148ELE-P terminals UN and UN to a
12-VDC circuit as shown (no polarity to observe).
2.6 Installing the Batteries
:
n Gently pull out the battery cover.
o Install the batteries as shown. Observe the polarity.
p Re-install the battery cover. You will hear a clicking sound.
After the batteries are installed, the thermostat performs a series of
tests for approximately 5 seconds.
Afterwards, the thermostat displays the temperature. It is possible
that the displayed temperature is higher than the ambient tempera-
ture if you are holding the thermostat in your hands. Once installed
on the wall, the thermostat will display the ambient temperature. The
time and day settings flash to indicate that they must be set (see sec-
tion 4.1).
2.7 Completing the Installation
n Once the baseplate and the batteries are installed, mount the
thermostat on the baseplate.
o Secure the thermostat using the locking screw and install the
faceplate.
p Apply power back to the system.
3.1 Backlight
The display illuminates for 12 seconds when the backlight button or
any other button is pressed.
3.2 Displaying the Temperature
The actual (measured) temperature is normally displayed. To view
the setpoint temperature, press once on either of the buttons.
The setpoint, along with the icon, will be displayed for the next 5
seconds.
3.3 Setting the Temperature
Press one of the buttons until the desired temperature is dis-
played.
3.4 Comfort and Economy Temperatures
The thermostat has 2 preset temperature buttons:
• Comfort temperature
• Economy temperature
To set the thermostat at the Comfort or Economy temperature, press
the corresponding preset button. The corresponding symbol will be
displayed.
The following table shows the use and the factory setting of each
preset button.
To modify the Comfort or Economy temperature:
n Set the desired temperature using the buttons.
o Press and hold the appropriate preset button until the corre-
sponding symbol is displayed.
NOTE:
No polarity
to observe.
Load
p
Basic Functions
3.
Button Intended use Default setting
Comfort (when the occupant is awake and at home) 21°C
Economy (when the occupant is absent or asleep) 17°C
400-147-016-C (TH147_148 P Europe) ENG.fm Page 2 Tuesday, January 8, 2008 2:47 PM