Riello Hi, Comfort 100 Installer And User Manual page 6

the control panel to its original set-up, resetting any user programming excluding
the system clock.
Summer: the heating system is not active in this mode (for example, during the
summer).
The boiler can dispense domestic hot water. If correctly connected and configured
(in cooling mode), the Hi, Comfort T100 can be used to manage a cooling system in
the summer, turning the relay on in ON/OFF mode, in the opposite way to the winter
operating mode. The relay keeps the user request connected (e.g. a zone valve) until
the room temperature falls below a certain level.
The cooling mode requires a specific system and generator for this purpose.
Winter: the Hi, Comfort T100 dispenses domestic hot water and hot water for heat-
ing 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 the Hi, Comfort T100
is installed (see "NOTE 1" to page 7).
Room setpoint temperature: this is the desired room temperature.
External temperature: this is the temperature outside, read using an ex-
ternal probe connected to the boiler or read in another way (see "NOTE 2"
to page 7).
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 ad-
justed as the external temperature varies in order to maintain a constant tempera-
ture 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 be-
tween the Hi, Comfort T100 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 Hi, Comfort T100.
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 Hi, Comfort T100 and the boiler (or any other unit capable of
receiving this command), where the relay on the Hi, Comfort T100 (or on the WiFi
Box/receiver) sends an on/off request via the room thermostat (TA) contact on the
6