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Idiomas disponibles
JUNIOR GREEN C.S.I.
Twin pipes (ø 80 mm) (fig. 23)
Twin outlets can be placed in the most suitable direction according to the
room requirements.
To use the combustion air suction pipe, one of the two inlets (E-F fig. 23)
must be selected. Remove the closure plug which is fixed using screws,
and use the specific adaptor relating to the inlet selected.
Arrange the fl ue gas discharge pipe so it slopes by 3% towards the
boiler.
The boiler automatically adapts the purging to the type of installation
and the length of the pipes. Do not obstruct or choke the pipes in
any way.
Refer to the graphs to fi nd the maximum lengths of the single pipe.
The use of longer pipes reduces the boiler output.
Maximum straight length
twin pipes
Ø 80 mm
45+45 m
*"Straight length" means without bends, drainage terminals or joints.
4 - SWITCHING ON AND OPERATION
4.1 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 4.3 - fault A09); the automatic purge cycle then starts, lasting
around 2 minutes. During this phase, the three LEDs light up alternately
and the symbol
is shown on the monitor (fig. 25).
To interrupt the automatic purge cycle proceed as follows:
access the electronic board by removing the housing, turning the instrument
panel towards you and opening the board casing (fig. 16)
Then:
- press the CO button (fig. 26).
Live electrical parts (230 V AC).
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) in the area divided into
segments, the boiler provides domestic hot water and heating. If there is
a heat request, the boiler switches on and the boiler status indicator LED
lights up with a fixed green light. The digital monitor indicates the heating
water temperature (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 display indicates the delivery temperature (fig. 30).
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(fig. 27) clockwise to the area divided into segments.
Summer mode: turning the selector to the summer mode symbol
28) activates the traditional domestic hot water only function.
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
monitor indicates the delivery temperature (fig.30).
Pre-heating (faster hot water): turning the domestic hot water
temperature adjustment knob to the
heating function. Bring the domestic hot water temperature adjustment
knob back to the required position.
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 next to the
symbol is lit. The monitor indicates the delivery temperature of the heating
water or the domestic hot water, according to the current request. During
burner ignition following a pre-heating request, the monitor indicates the
symbol.
To deactivate the pre-heating function, rotate the domestic hot water
temperature adjustment knob back to the
switch off. Bring the domestic hot water temperature adjustment knob back
to the required position.
This function cannot be activated when the boiler is OFF: function selector
(fig.32) to
(OFF).
22
Pressure drop
45° bend
90° bend
1 m
1,5 m
symbol (fig. 31) activates the pre-
symbol. The yellow LED will
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30
25
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5
0
0
5
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25
Adjustment of the domestic hot water temperature
To adjust the domestic hot water temperature (bathrooms, shower, kitchen,
etc.), turn the knob with the
numerical values between 1 (min. value 37°C) and 9 (max. value 60°C).
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 switches
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 the
chapter on Light signals and faults).
The digital monitor indicates the fault code detected.
Automatic Temperature Control System function (S.A.R.A.) fig. 35
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
automatically 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
seconds then set the function selector to the required position, checking
that the red indicator light is OFF.
At this point the boiler will automatically start and the red lamp switches
on in green.
N.B. If the attempt to reset the appliance does not activate operation,
contact the Technical Assistance Service.
4.2 Switching off
(fig.
Temporary switch-off
In case of absence for short periods of time, set the mode selector (fig.
32) to
(OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by the following systems:
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 minimum
output levels to bring the water temperature back to the values for safety
(35°C). During the anti-frost cycle, the symbol
digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
Switching off for long periods
In case of absence for long periods of time, set the mode selector (fig. 32)
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.
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Suction pipe length (m)
symbol (fig. 33) to align with one of the
symbol (fig. 34) on the control panel
(fig. 36) appears on the
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100
100
105
105
110
110
(fig. 32), wait 5-6
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