Preliminary Checks; Switching Off - Riello 24 KIS C Manuel D'installation Et D'utilisation

ENGLISH
3.6 FILLING THE HEATING SYSTEM (FIG. 26)
Once the hydraulic connections have been carried out, fill the heating system.
This operation must be carried out with cold system following this instructions:
- Turn by two or three turns the automatic relief valve cap (A)
- Make sure the cold water inlet tap is open
- Open the filling tap (B) until the pressure indicated by the water pressure
gauge is within 1 and 1.5 bar.
Once filling is complete, close the filling tap.
NB: air deaeration from the Residence KIS boiler is automatic through the
automatic relief valve located in the circulator.
Make sure the deaeration valve is open.
The burner switches on only if the air relief phase is finished.
Emptying the heating system
To empty the system, proceed as follow:
- Switch off the boiler
- Loose the boiler outlet tap (C)
- Empty the lowest points of the system.
Emptying the domestic hot water
When there is risk of frost, the domestic hot water system must be emptied
in the following way:
- Close the main tap of the water mains
- Open all the hot and cold water taps
- Empty the lowest points.
WARNING
When carrying out the discharge of the safety valve (D), it must be connected
to a suitable collection system. The manufacturer is not responsible for
possible damages due to safety valve operation
4 - IGNITION AND OPERATION

4.1 PRELIMINARY CHECKS

a) that the supply networks data (electric, water, gas) corresponds to the
label data
b) that piping leaving the boiler is covered by thermal insulation sheath
c) that flue gas extraction and air suction pipes work correctly
d) that conditions for regular maintenance are guaranteed if the boiler is
placed inside or between furniture
e) the seal of the fuel adduction system
f) that fuel capacity corresponds to values requested by the boiler
g) that the fuel supply system has the correct capacity for the necessary
capacity to the boiler and that it has all the safety and control devices
prescribed by current regulations.
4.2 APPLIANCE IGNITION
- Set the mode selector to (off-reset)
- Set the main system switch to "on" (the boiler status green signal starts
flashing)
- Adjust room thermostat to desired temperature (-20°C) or, should the
system have a timer, this must be "on" and adjusted (-20°C)
- Set the mode selector (1) to summer (reference notch on
or winter (reference notch on graduated zone) depending on the season;
the boiler status signal is green and flashes at a frequency of 0.5 second
ON and 3.5 seconds OFF; the boiler will be in stand-by status: when heat
is required the burner will ignite and the led light becomes fixed green to
show there is a flame.
1
fig. 3
RESET MODE
fig. 4
6
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fig. 5
Pre-heating (faster hot water): rotate the domestic hot water temperature
adjustment knob (2 - fig. 3) to the symbol
function. This function keeps the water in the domestic hot water exchanger
hot, to reduce standby times when a request is made. When the pre-heating
function is enabled, the yellow LED (1) is ON. The monitor (5 - fig. 9) indicates
the delivery temperature of the heating water or the domestic hot water, ac-
cording to the current request. During burner ignition following a pre-heating
request, the monitor indicates the
function, rotate the domestic hot water temperature adjustment knob back to
the
temperature adjustment knob back to the required position. This function
cannot be activated when the boiler is OFF: function selector on OFF (fig. 4).
ADJUSTMENT OF THE HEATING WATER TEMPERATURE (1)
With changes in outside temperature it may be necessary to increase or
lower the temperature of the heating water by re-adjusting the selector of
the boiler heating water temperature.
Turn clockwise to increase water temperature and anti-clockwise to lower it.
ADJUSTMENT OF DOMESTIC HOT WATER TEMPERATURE (2)
The hot water temperature can be changed by turning the hot water ther-
mostat clockwise to increase the temperature and anti-clockwise to lower it.
If the led lights up green and flashes at a frequency of 0.5 seconds ON and
0.5 seconds OFF, this signifies that the boiler is in temporary shutdown (see
light signals and faults section).
The Residence KIS boiler will keeping working until reaching the set tem-
perature, after which it will go into standby.

4.3 SWITCHING OFF

Temporary switching off
In case of absence for short periods of time, set the mode selector (1) to
(off/reset-green signal on and flashing)
With the power supply and combustible gas still connected the boiler is
protected by systems:
- Antifreeze: this mode will start up if the water
symbol)
- Circulator anti-lockout: the circulator starts working every 24 hours of
Long period switching off
In case of absence for long periods of time:
2
- Set the mode selector (1) to
- Set the main system switch to "OFF" and check that the green signal
- Turn off the gas and water cocks of the heating and hot water sys-
SUMMER MODE
PRE-HEATING MODE
symbol. The yellow LED will switch off. Bring the domestic hot water
The boiler will go into "SAFETY STOP" if there should be faults in
ignition or working: the green signal on the instrument panel will go off
and the red boiler in lockout signal will light up (see light signals and
faults section).
drops to below 5°C, the circulator starts up with a timer cycle of 15' every 2
hours with the following logic: the circulator will switch off when the water
temperature in the boiler exceeds 10°C; the burner ignites at minimum
on heating when the water temperature in the boiler drops to below 5°C
until the water reaches 30°C, this is followed by a post-circulation for 30
seconds.
standstill and anyhow after 3 hours from the last time hot water was drawn.
(off/reset green signal on and flashing)
switches off
tems.
In this case, anti-frost device is deactivated: empty the systems, in
case of risk of frost.
WINTER MODE
, to activate the pre-heating
symbol. To deactivate the pre-heating
temperature in the boiler