QUADRA GREEN 25 R.S.I.
Under no circumstances cover the intake grids, dissipation grids and
ventilation vents in the installation room with cloths, paper or any
other material.
Do not use electrical switches, telephone or any other object that
causes sparks if there is a smell of gas. Ventilate the room by open-
ing doors and windows and close the central gas tap.
Do not place anything in the boiler.
Do not perform any cleaning operation if the appliance is not discon-
nected from the mains power supply.
Do not cover or reduce ventilation opening of the room where the
generator is installed.
Do not leave containers and inflammable products in the installation
room.
Do not attempt to repair the appliance in case of failure and/or mal-
functioning.
It is dangerous to pull or twist the electric cables.
Do not access the inside of the boiler. Any work on the boiler should
be carried out by the Technical Assistance Centre or by professionally
qualified personnel.
Do not carry out operations on sealed elements.
For better use, remember that:
- periodic external cleaning with soapy water not only improves its appear-
ance but also preserves panelling from corrosion, extending its life cycle;
- if the wall-mounted boiler is enclosed in a hanging unit, leave at least 5
cm for ventilation and maintenance;
- installation of a room thermostat will greatly improve comfort, a more ra-
tional use of the heat and energy saving; the boiler can also be connected
to a programmable timer in order to control the switching on and off of the
appliance during the day or week.
2a SWITCHING ON THE APPLIANCE
Every time the appliance is powered up, a series of data is shown on the
display including the flue gas sensor meter reading (-C- XX) (see paragraph
4a - fault A09); the automatic purge cycle then starts, lasting around 2 min-
utes. During this phase, the three LEDs light up alternately and the symbol
is shown on the monitor (fig. 25).
To start up the boiler it is necessary to carry out the following operations:
- power the boiler
- open the gas tap to allow the flow of fuel
- set the room thermostat to the required temperature (~20°C)
- turn the mode selector to the desired position:
Winter mode: by turning the mode selector (fig. 27) within the area marked
with segments, the boiler provides hot water for heating and, if connected
to an external storage tank - supplies hot water for DHW.
If there is a heat request, the boiler switches on and the boiler status indica-
tor LED lights up with a fixed green light. The digital monitor indicates the
heating water temperature, the icon to indicate heating and the flame icon
(fig. 29).
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a fixed green light.
The digital display shows the hot water system temperature, the icon to
indicate the hot water supply and the flame icon (fig. 30)
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(fig. 27) within the area marked with segments.
Depending on the type of system, it is possible to pre-select the suitable
temperature range:
- standard systems 40-80°C
- floor systems 20-45°C.
For further details, consult the "Boiler configuration" section.
Adjusting heating water temperature with an external probe connected
When an external probe is connected, the value of the delivery tempera-
ture is automatically chosen by the system which rapidly adjusts ambient
temperature to the changes in external temperature. To increase or decre-
ase the temperature with respect to the value automatically calculated by the
electronic board, turn the heating water selector clockwise to increase and
anticlockwise to decrease. Adjustment settings range from comfort levels - 5
to + 5 which are indicated on the digital display when the knob is turned.
Summer mode (only active when the external storage tank is connect-
ed): turning the selector to the summer mode symbol
the traditional domestic hot water only function, the boiler supplies water
at the temperature set on the external storage tank.
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a fixed green light. The digital di-
splay shows the hot water system temperature, the icon to indicate the hot
water supply and the flame icon (fig. 30).
28
Adjustment of the domestic hot water temperature
CASE A heating only with storage tank - adjustment does not apply.
CASE B heating only + external storage tank with thermostat - adjustment
does not apply.
CASE C heating only + external storage tank with probe - to adjust the
temperature of the domestic hot water in the storage tank, turn the knob-but
with the symbol
anti-clockwise to lower it.
On the control panel, the green LED flashes with ON for 0.5 seconds, OFF
for 3.5 seconds.
The boiler is standby status until, after a heat request, the burner switch-
es on and the indicator LED turns fixed green to indicate flame presence.
The boiler continues to operate until the temperatures set on the boiler are
reached, or the heat request is met; after which it goes back on standby.
If the red LED indicator near the
lights up, this means the boiler is in temporary shutdown status (see chap-
ter "Light signals and faults").
The digital monitor indicates the fault code detected.
Automatic Temperature Control System function (S.A.R.A.) fig. 34
Setting the heating water temperature selector to the area marked "AUTO",
activates the automatic temperature control system (frequency 0.1 sec. on;
then 0.1 sec. off; for 0.5 seconds): according to the temperature set on the
room thermostat and the time taken to reach it, the boiler varies automati-
cally the heating water temperature reducing the operating time, allowing
greater ease of operation and energy saving. On the control panel, the
green LED flashes ON for 0.5 seconds, OFF for 3.5 seconds.
Reset function
To restore operation, set the function selector to
5-6 seconds then set it to the required position, checking that the red indica-
tor light is OFF.
At this point the boiler will automatically start and the red lamp switches on
in green.
NOTE: If the attempt to reset the appliance does not activate operation,
contact the Technical Assistance Service.
3a SWITCHING OFF
Temporary switch-off
In case of absence for short periods of time, set the mode selector (fig. 31)
to
(OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by:
Anti-frost device: when the temperature of the water in the boiler falls
below 5°C, the circulator and, if necessary, the burner are activated at mini-
mum output levels to bring the water temperature back to the values for
safety (35°C). During the anti-frost cycle, the symbol
on the digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
DHW Antifreeze (only when connected to an external storage tank with
probe): the function is activated if the temperature measured by the storage
tank probe drops below 5° C. A heat request is generated in this phase with
the ignition of the burner at minimum power, which is maintained until the
water temperature reaches 55° C. During the anti-frost cycle, the symbol
(fig. 35) appears on the digital monitor.
Switching off for long periods
In case of absence for long periods of time, set the mode selector (fig. 31)
to
(OFF).
Turn the main system switch OFF.
Close the fuel and water taps of the heating and domestic hot water system.
In this case, anti-frost device is deactivated: drain the systems, in case of
risk of frost.
4a LIGHT SIGNALS AND FAULTS
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to
the required position
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
(fig. 28) activates
Fault A04
In addition to the fault code, the digital display shows the symbol
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to
adjust the filling tap (external to the system) until the pressure reaches a
value between 1 and 1.5 bar.
(fig. 32) clockwise to increase water temperature and
symbol (fig. 33) on the control panel
(OFF), wait 5-6 seconds then set it to
(summer mode) or
("OFF") (fig. 31), wait
(fig. 35) appears
(winter mode).
.
OFF (fig. 31) and