Riello BeSMART Installer And User Manual page 41

Following you find information on the
boiler RF receiver and a description
of its electric connection (6 wires)
brown
blue
230 V
black
TA
black
red
OT
red
BUS
WiFi Box connection via OTBus
(only for boilers equipped with a
compatible OTBus protocol)
Connect the red wires of the USB
cable to the boiler OTBus terminal
(please consult the boiler installer
manual). Should the boiler not be
equipped with an OTBus terminal,
you can use an OTBus connector
provided in the WiFi BeSMART pack-
age (only for boilers without one).
9
Only one of the BeSMART sys-
tem components (BeSMART,
WiFi Box or boiler RF receiver)
must be connected to the boil-
er via cable via OTBus.
ON/OFF WiFi Box connection
Connect the black wires of the USB
cable to the boiler room thermostat
terminal (it is recommended that you
consult the boiler installer manual).
9
In the case of BeSMART ther-
mostats wired in ON/OFF mode,
or zone valve microswitches, it
is recommended that you con-
nect these to the boiler room
thermostat terminal and wire
the WiFi Box to the boiler via
OTBus only (only for boilers
equipped with a compatible
OTBus protocol).
OTBus on the boiler
OTBus on the BeSMART
OT
TA
Black cables = TA (ON/OFF)
Red cables = OTBus communication
protocol
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