Riello BeSMART Installer And User Manual page 7

T1 anti-freeze temperature: this is the temperature used when the rooms
are not lived in.
T2 economy temperature: this is the temperature used when the rooms are
not lived in during the day, at night or when you are on holiday.
T3 comfort temperature: this is the temperature at which you obtain ideal
room heating during the day.
Room temperature: this is the temperature in the room where the BeSMART
is installed (see "NOTE 1" to page 8).
Room setpoint temperature: this is the desired room temperature.
External temperature: this is the temperature outside, read using an external
probe connected to the boiler or read in another way (see "NOTE 2" to page 8).
Heating curve: this is the relationship between the external temperature and
the heating flow temperature. Where external temperature data are available
(via an external probe or other method), the heating flow temperature is au-
tomatically adjusted as the external temperature varies in order to maintain
a constant temperature in the room. The heating curve must be set by the
installer on the basis of the geographical location and type of system.
Connection via OTBus communication bus: this is a communication mode
between the BeSMART and the boiler, where a series of information is ex-
changed between the two electronic systems. This proprietary connection
can be used as opposed to the simple ON/OFF (open/closed contact) and is
set by the boiler manufacturer specifically for the BeSMART.
Check the compatibility of your boiler with the OTBus connection first.
ON/OFF connection (boiler room thermostat): this is the simple commu-
nication method between the BeSMART and the boiler (or any other unit
capable of receiving this command), where the relay on the BeSMART (or on
the WiFi Box/receiver) sends an on/off request via the room thermostat (TA)
contact on the boiler. The ON/OFF connection is also used when a request is
made to another system component such as a zone valve or similar.
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