Fusion Hybrid Gas Condens
44
Connecting the two room thermostats
In this type of configuration, two single room thermostats will be connected, one in terminals
27
and
29
(
TAF
Cooling thermostat) and one in terminals
27
and
28
(
TAC
Heating thermostat). Each of
them manages a different operating mode, so each thermostat must be of a type compatible with
the operation for which it has been installed. The thermostat connected to the cooling input (TAF)
should demand (closed circuit signal) when the room temperature is higher than the desired
temperature (setpoint temperature), and in turn, the thermostat connected to the heating input
(TAC) should demand (closed circuit signal) when the room temperature is lower than the desired
temperature (setpoint temperature).
The
Dual Clima
heat pump activates the Heating/Cooling operating modes according to the status
of the signal received from each thermostat, as follows:
Heating mode
Cooling mode
Cooling
OFF (Stand-By)
(temp. reached)
Manual mode
TAC TAF
32
31
30
TAC
TAF
32
31
30
TAC
TAF
32
31
30
TAC
TAF
32
31
30
As indicated in the figure, if the setpoint temperatures of the room thermostats are selected in such
a way that both require simultaneous operation, the electronic control of the heat pump will start
to operate in “Manual” mode, that is, the Heating/ Cooling Operating modes must be selected
manually from the control panel. To avoid this situation, it is essential to
make sure to correctly
select the temperatures of each of them, in such a way that they do not cross and to avoid that
both thermostats are activated at the same time.
Terminals
27
,
28
y
29
are supplied from the factory with a jumper wire connected to each of them,
so in order to install the thermostats, it will be necessary to remove
both
jumper wires and connect
the thermostats as described in the following figure:
C
C
C
TAC
TAF
32
30 31
32
30
C
31
DANGER When handling the electrical installation, make sure that both the module and
the Dual Clima heat pump are disconnected from the mains.
