Riello 20118250, Installation And Maintenance Manual

Page: 38 / 64

38
COMMISSIONING AND MAINTENANCE
Once the initialization phase is complete, the display switches to
“basic display” mode.
In this mode, the main information on the equipment opera-
tion is displayed. The meaning of the different icons displayed
is explained in paragraph “Control panel”. The icon and the
heating delivery temperature are displayed, either if the boiler
is in stand-by mode or if a temperature request is active (icon
blinking).
To switch off the equipment, set the main switch to “0”.
9
Never power off the appliance before switching the master
switch to the "0" position.
9
Never switch off the appliance with the master switch if a
request is active. Always make sure that the appliance is in
stand-by before switching the main switch.
Example of generator stand-by display in heating only mode
(external probe not connected)
Bar
°C
− Set the room thermostat to the required temperature (~
20°C) or, if the system has a timer or timer-thermostat,
make sure that this is switched “ON” and adjusted to the
required temperature (~ 20°C).;
9
In certain conditions, the “Heating circuit anti-freeze pro-
tection” function (Par. 2075 = 1) activates the appliance cir-
culator and burner (see “ Special functions ”) by raising the
heating system temperature, even where there is no heat
request.
9
If the “Heating circuit anti-freeze protection” function is de-
activated (Par. 2075 = 0), the heating circuit is not protected
against freezing during periods of inactivity.
3.2.1 Adjustment of heating setpoint
− Press the key“+” or “-” to display the current value of the
heating temperature setpoint.
°C
− Increase or decrease the setpoint according to the type of
system by using the key “+” of “-”.
− To save the modification made and go back to the initial
screen, wait for 3 seconds or press the key “ENTER/RESET”.
− Check that the thermal unit starts the ignition phase and
that the display shows the icon blinking (ambient
heating request) and the icon
.
− The boiler now starts up and the burner remains lit until
the temperature setpoint is reached.
3.2.2 Enable/disable the heating function
− Press the keys “+” and “-” simultaneously for a few sec-
onds;
− The icon and the current heating mode (ON or OFF) will
blink on the display;
− Press the keys “+” and “–” to select the required mode;
− Press the key “ENTER/RESET” or wait for 3 seconds to save
the modification made and go back to the initial screen.
3.2.3 Adjustment of domestic setpoint
− Press the key "
▲
" o "
▼
" to display the current value of
domestic setpoint.
°C
− Increase or decrease the setpoint by using the key “
▲
"
o "
▼
".
− To save the modification made and go back to the initial
screen, press the key “ENTER/RESET”.
3.2.4 Enable/disable the domestic function
− Press the keys "
▲
" and "
▼
" simultaneously for a few
seconds;
− The icon and the current domestic mode (ON or OFF)
will blink on the display;
− Press the keys "
▲
" and "
▼
" to select the required mode;
− To save the modification made and go back to the initial
screen, press the key “ENTER/RESET”.