BUS
BUS
BUS
*
#
6
DIN RAIL WIRED ACTUATOR FOR FAN COIL ROOM THERMOSTAT
CH176D
2 - CONNECTING SEVERAL MODULES TO ONE THERMOSTAT
A CH133AR2 - CH133RR - CH130AR2 - CH130ARR - CH130RR thermostat can control up to five fan-coils simultaneously,
using only two wires to connect to the various actuation modules. In this case, only one of the two CH176D modules
must have the “BUS selector” in “MASTER” position, while all others must be left in “SLAVE” mode (default setting). The
temperature probe connected to the actuation module set up as “MASTER” is the one read by the thermostat.
The connection between the various devices must be made as per the diagram in the following figure.
3 - OPERATING MODE SELECTION
(COMPATIBILITY WITH ACTUATOR CH172D)
If thermostats CH133RR - CH130RR - CH130ARR are connected to the actuation module, it must be configured in CH172D
mode. The selection is made by switching on the actuation module by means of the configuration of the probe input
according to the following diagram:
CH176D
: probe input free or connected to a temperature probe
CH172D
: temperature probe input permanently short-circuited by means of a conductor cable
BUS selector in ON position (MASTER)
Note:
BUS selector in OFF position (SLAVE)
