For hot water installations, it is recommended
The TH135 incorporates a telephone controller interface which
allows you to switch from the or setting to the Vacation setting
), and vice versa using a touchtone telephone. You can, for
example, start the heating of your secondary residence from your
office on Friday, or your house from the airport or from your car on
your way back from vacation.
to activate the pump at least one minute
every 24 hours in order to avoid seizure.
Place switch #3 down to activate this function.
For all other installations, leave switch #3 in
the Off position (otherwise your system will be
activated 1 minute every 24 hours).
Connection to the CT240
The TH135 is designed to connect directly to the CT240 telephone
controller. This combination allows the activation and deactivation of
the Vacation setting from the CT240 or telephone.
Temperature in °C or °F
The TH135 is factory-set to °C. If you wish to
change the temperature display to °F, slide
switch #4 upward. Please note that if you
change from °C to °F or vice versa, you must
reset the Comfort ( ), Economy ( ) and
Connect the CT240’s terminals A and C to the TH135's terminals X
and C respectively. You must respect the polarity.
Vacation ( ) settings accordingly.
For details on operating the telephone controller, refer to the CT240’s
Operating the Telephone Interface
You can activate the Vacation setting using the Vacation button of the
Appears when the
setpoint is displayed
telephone controller ( ) or using a telephone from outside of the
of heating *
Preset temperature icon
n To activate the Vacation setting, press the Vacation button of the
CT240 ( ). The Vacation setting will be displayed for 5 seconds
The thermostat displays the percentage of heating required to maintain the desired tem-
and the ( ) icon will flash on the screen. You no longer have
access to the TH135 keypad if this function is activated by the
perature. For example,
is displayed when heating is activated at 40 percent.
1 to 24% 25 to 49% 50 to 74% 75 to 99%
o To deactivate the function and return to the previous setting,
press the Vacation button of the telephone controller again or
use a phone. The red light will go off and the ( ) icon will
disappear within 5 seconds.
When you first install the batteries in the TH135, the unit runs a
sequence of tests for approximately 5 seconds. After the tests, the
screen should display the current temperature.
It is normal for the displayed temperature to be higher than the room
temperature if you are holding the TH135 in your hands. It will return
to normal about one hour after installation on the wall.
Connection to a Home Automation System
Mount the thermostat on the wall plate and screw it in place.
The Vacation setting can also be activated from a home automation
20 °C (68 °F)
18 °C (64 °F)
10 °C (50 °F)
n To set the Comfort temperature, select the desired degree using
the buttons and push the button until the icon is
displayed (about 3 seconds).
o To set the Economy temperature, select the desired degree
using the buttons and push the button until the icon is
The TH135 will display an icon indicating that the
batteries must be replaced. This icon will flash for 60
days. After this period, the thermostat will shut down
your heating unit.
displayed about 3 seconds).
p To set the Vacation temperature, select the desired degree using
buttons and push simultaneously the and buttons
icon is displayed (about 3 seconds). This setting is
After the battery replacement, you have to
used by the telephone controller.
settings (refer to section
Even if the thermostat indicates that the batteries are
good, it is recommended to replace them once a
year at the beginning of the heating season.