Riello RiCloud User Manual page 6

Winter: RiCLOUD dispenses domestic hot water and hot water for heating in this
mode.
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 RiCLOUD is
installed (see "NOTE 1" page 54).
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" page 54).
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
automatically 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 RiCLOUD and the boiler, where a series of information is exchanged
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 RiCLOUD
Check the compatibility of your boiler with the OTBus connection first.
ON/OFF connection (boiler room thermostat): this is the simple communication
method between the RiCLOUD and the boiler (or any other unit capable
of receiving this command), where the relay in RiCLOUD (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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