44
COSMOGAS
Ecotwin
Figure 6-25 - Correct position of the room thermostat / chronothermostat
6 - INSTALLATION
6.17.4 - Connection of the RT /
chronothermostat to the relevant heating
/ cooling circuit
If the appliance has more than one heating circuit (see Figure
5-10), the room thermostats of each circuit check the activation
of the relevant circuit.
Install the room thermostat in a point of the house where
the temperature is as characteristic of the house as possible
and in any case in an area not subject to sudden changes in
temperature, away from windows or doors that give directly
to the outside (see Figure 6 -24).
To connect the room thermostat cable, proceed as follows:
1.- The first thermostat must be connected to the heating
(COM-HS) or cooling (COM-CS) (Figure 6-22);
2.- The second thermostat must be connected to the “COM-
HT” contact (Figure 6-22) and works in slave mode with
respect to the first.
WARNING!!! Therefore, if thermostat 1 is not
closing the contacts (COM-CS or COM-HT) the second
circuit will not work either.
WARNING !!! As the cables of the room thermostat
/ chronothermostat are subjected to very low safety
voltage (24Vdc), they must run in ducts other than the
230Vac power supplies.
