Beretta CIAO GREEN 25 C.S.I. Operation and installation manual

QUADRA
GREEN
25 C.S.I.
EN INSTALLER AND USER MANUAL
ES MANUAL DE INSTALACIÓN Y USO
MANUAL DE INSTALARE SI UTILIZARE
RO
PL INSTRUKCJA OBSŁUGI, INSTALACJI I KONSERWACJI
KOTŁA GAZOWEGO

3
QUADRA GREEN 25 C.S.I.
0694
0694CL6033
Quadra Green C.S.I. boilers comply with the essential requirements of the following Directives:
- Gas Appliance Directive 2009/142/EC
- Effi ciency Directive 92/42/EEC
- Electromagnetic Compatibility Directive 2004/108/EC
- Low Voltage Directive 2006/95/EC
- Regulation 677 for condensation boilers
and therefore bears the EC marking
EN
0694
0694CL6033
La caldera Quadra Green C.S.I. es conforme a los requisitos fundamentales de las siguientes Directivas:
- Directiva Gas 2009/142/CE
- Directiva Rendimientos 92/42/CEE
- Directiva Compatibilidad Electromagnética 2004/108/CE
- Directiva Baja Tensión 2006/95/CE
- Norma 677 para calderas de condensación
por lo tanto posee el Marcado CE
ES
0694
0694CL6033
RO Centrala Quadra Green C.S.I. este în conformitate cu cerințele esențiale ale următoarelor Directive:
- Directiva de Gaz 2009/142/CE
- Directiva de Randament 92/42/CEE
- Directiva de Compatibilitate Electromagnetică 2004/108/CE
- Directiva de Joasă Tensiune 2006/95/CE
- Regulamentul 677 referitor la boilerele cu condensare
astfel, poartă marca CE
0694
0694CL6033
Quadra Green C.S.I. spełnia podstawowe wymagania następujących rozporządzeń:
- Urządzenia spalające paliwa gazowe 2009/142/WE
- Sprawność energetyczna kotłów wodnych 92/42/EWG
- Kompatybilność energetyczna 2004/108/EC
- Rozporządzenie dot. niskiego napięcia 2006/95/WE
- Rozporządzenia dot. Kotłów kondensacyjnych EN 677
I w związku z powyższym posiada znak CE.
PL
Installer’s-user’s manual 4-16
Boiler operating elements 57
Hydraulic circuit 58
Electric diagrams 59
Circulator residual head 62
EN
ES Manual para el instalador-usuario 30-42
Elementos funcionales de la caldera 57
Circuito hidráulico 58
Esquema eléctrico 59
Altura de carga residual del circulador 62
RO Manual instalator-utilizator 43-55
Elemenetele functionale ale centralei 57
Circuit hidraulic 58
Scheme electrice 59
Presiune reziduala circulator 62
Instalator / użytkownik instrukcja obsługi 17-29
Elementy funkcyjne kotła 57
Grupa hydrauliczna 58
Schematy elektryczne 59
Zakres pracy pompy 62
PL

4
QUADRA GREEN 25 C.S.I.
1 - WARNINGS AND SAFETY
The boilers produced in our plants are built with great attention to
detail and every component is checked in order to protect users
and installers from injury. After working on the product, qualifi ed
personnel must check the electrical wiring, in particular the stripped
part of conductors, which must not stick out from the terminal board,
avoiding possible contact with live parts of said conductor.
This instruction manual, together with the user manual, are integral
parts of the product: make sure it remains with the appliance, even
if it is transferred to another owner or user, or moved to another
heating system. In case of loss or damage, please contact your
local Technical Assistance Service for a new copy.
Boiler installation and any other assistance and maintenance opera-
tions must be carried out by qualifi ed personnel according to the
provisions of the legislation in force.
The installer must instruct the user about the operation of the appli-
ance and about essential safety regulations.
This boiler must only be used for the application it was designed
for. The manufacturer declines all contractual and non-contractual
liability for injury to persons or animals or damage to property deriving
from errors made during installation, adjustment and maintenance
and from improper use.
After removing the packaging, make sure the contents are in good
condition and complete. Otherwise, contact the dealer from whom
you purchased the appliance.
The safety valve outlet must be connected to a suitable collection
and venting system. The manufacturer declines all liability for any
damage caused due to any operation carried out on the safety valve.
Dispose of all the packaging materials in the suitable containers at
the corresponding collection centres.
Dispose of waste by being careful not to harm human health and
without employing procedures or methods which may damage the
environment.
During installation, inform the user to:
- in the event of water leaks, the water supply must be shut off and
the Technical Assistance Service must be contacted immediately.
- it is necessary to periodically check that the operating pressure of
the hydraulic system is above 1 bar. If necessary, reset the pres-
sure as indicated in the paragraph entitled “Filling the system”
- if the boiler is not used for a long time, the following operations
are recommended:
- turn the main switch of the appliance and the main switch of the
system to the “off” position
- close the fuel and water taps of the heating system
- drain the heating system to prevent freezing.
For safety, always remember that:
the boiler should not be used by children or unassisted disabled
people
it is dangerous to activate electrical devices or appliances (such as
switches, home appliances, etc.) if you smell gas or fumes. In the
event of gas leaks, ventilate the room opening doors and windows;
close the main gas tap; contact the Technical Assistance Service or
professionally qualifi ed personnel immediately
do not touch the boiler while barefoot, or if parts of your body are
wet or damp
before any cleaning operations, disconnect the boiler from the mains
power supply by turning the two-position system switch and the main
control panel switch to the “OFF” position
do not modify safety and adjustment devices without the manufac-
turer’s permission and relative instructions
do not pull, disconnect or twist the electric cables coming out of the
boiler, even when it is disconnected from the mains power supply
avoid covering or reducing the size of the ventilation openings in the
installation room
INSTALLATION MANUAL
EN ENGLISH
do not leave infl ammable containers and substances in the installa-
tion room
keep packaging materials out of the reach of children
it is forbidden to obstruct the condensate drainage point.
2 - DESCRIPTION
Quadra Green C.S.I. is a Type C wall-mounted condensing boiler designed
for heating and production of domestic hot water: according to the fl ue gas
discharge device, the boiler is classifi ed in categories B23P, B53P, C13,
C23, C33, C43, C53, C63, C83, C93, C13x, C33x, C43x, C53x, C63x,
C83x, C93x.
In confi guration B23P and B53P (when installed indoors), the appliance
cannot be installed in bedrooms, bathrooms, showers or where there are
open fi replaces without a proper air fl ow. The room where the boiler is in-
stalled must have proper ventilation.
In confi guration C, the appliance can be installed in any type of room and
there are no limitations due to ventilation conditions or room volume.
3 - INSTALLATION
3.1 - Installation regulations
Installation must be carried out by qualifi ed personnel, in accordance with
local regulations.
POSITION
The boiler has protection that guarantees correct operation with a tempera-
ture range from 0°C to 60°C.
To take advantage of protective devices, the appliance must be able to start
up, since any lockout condition (for example, absence of gas or electrical
supply, or safety operation) deactivates the protective devices. If the ma-
chine is left powered down for long periods in areas where temperatures
may fall below 0°C, and you do not want to drain the heating system, you
are advised to add a good quality antifreeze liquid to the primary circuit to
protect it from freezing.
Carefully follow the manufacturer’s instructions with regards not only the
percentage of antifreeze liquid to be used for the minimum temperature
at which you want to keep the machine circuit, but also the duration and
disposal of the liquid itself. For the domestic hot water part, we recommend
you drain the circuit.
The boiler component materials are resistant to ethylene glycol based an-
tifreeze liquids.
MINIMUM DISTANCES
In order to have access to the boiler to perform regular maintenance opera-
tions, respect the minimum clearances foreseen for installation (fi g. 9).
For correct appliance positioning:
- do not place it on a cooker or other cooking device
- do not leave infl ammable products in the room where the boiler is installed
- heat sensitive walls (for example, wooden walls) must be protected with
proper insulation.
IMPORTANT
Before installation, wash all system piping carefully in order to remove any
residues that may impair the operation of the appliance.
Connect the drain manifold to a suitable drainage system (for details, refer
to chapter 3.5). The domestic hot water circuit does not need a safety valve,
but make sure that the pressure of waterworks does not exceed 6 bar. In
case of doubts, install a pressure reducer. Prior to ignition, make sure that
the boiler is designed to operate with the gas available; this can be checked
by the message on the packaging and the adhesive label indicating the gas
type. It is very important to highlight that in some cases the smoke pipes are
under pressure and therefore, the connections of several elements must
be airtight.
3.2 Cleaning the system and characteristics of the heat-
ing circuit water
In the case of a new installation or replacement of the boiler, it is necessary
to clean the heating system.
To ensure the device works well, top up the additives and/or chemical treat-
ments (e.g. antifreeze liquids, fi lming agents, etc.) and check the param-
eters in the table are within the values indicated.
In some parts of the manual, some symbols are used:
WARNING = for actions requiring special care and adequate preparation
FORBIDDEN = for actions that MUST NOT be performed

5
ENGLISH
Parameters Unit of
measurement Hot water circuit Filling water
pH value 7–8 -
Hardness °F - 15–20
Appearance
- clear
3.3 Securing the boiler to the wall and hydraulic
connections
To secure the boiler to the wall, use the crossbar (fi g. 10) provided in the box.
The position and size of the hydraulic connections are indicated below:
M heating outlet 3/4”
AC DHW outlet 1/2”
G gas connection 3/4”
AF DHW inlet 1/2”
R heating return line 3/4”
3.4 Installation of the external sensor (fi g. 11)
The correct operation of the external sensor is fundamental for the good
operation of the climate control.
INSTALLING AND CONNECTING THE EXTERNAL SENSOR
The sensor must be installed on an external wall of the building to be heat-
ed, observing the following indications:
it must be mounted on the side of the building most often exposed to winds
(the NORTH or NORTHWEST facing wall), avoiding direct sunlight; it must
be mounted about two thirds of the way up the wall;
it must not be mounted near doors, windows or air outlet points, and must
be kept away from smoke pipes or other heat sources.
The electrical wiring to the external sensor is made with a bipolar cable
with a section from 0.5 to 1 mm2 (not supplied), with a maximum length
of 30 metres. It is not necessary to respect the polarity of the cable when
connecting it to the external sensor. Avoid making any joints on this cable
however; if joints are absolutely necessary, they must be watertight and well
protected. Any ducting of the connection cable must be separated from live
cables (230V AC).
FIXING THE EXTERNAL SENSOR TO THE WALL
The sensor must be fi xed on a smooth part of the wall; in the case of ex-
posed brickwork or an uneven wall, look for the smoothest possible area.
Loosen the plastic upper protective cover by turning it anticlockwise.
After deciding on the best fi xing area of the wall, drill the holes for the 5x25
wall plug.
Insert the plug in the hole. Remove the board from its seat.
Fix the box to the wall, using the screw supplied.
Attach the bracket, then tighten the screw.
Loosen the nut of the cable grommet, then insert the sensor connection
cable and connect it to the electric clamp.
To make the electrical connection between the external sensor and the
boiler, refer to the “Electrical wiring” chapter.
Remember to close the cable grommet properly, to prevent any
humidity in the air getting in through the opening.
Put the board back in its seat.
Close the plastic upper protective cover by turning it clockwise. Tighten the
cable grommet securely.
3.5 Condensate collection
The system must be set up so as to avoid any freezing of the condensate
produced by the boiler (e.g. by insulating it). You are advised to install a
special drainage collection basin in polypropylene (widely available on
the market) on the lower part of the boiler (hole Ø 42), as shown in Fig.12.
Position the fl exible condensate drainage hose supplied with the boiler,
connecting it to the manifold (or another connection device which allows
inspection) avoiding creating any bends where the condensate could col-
lect and possibly freeze.
The manufacturer will not be liable for any damage resulting from the failure
to channel the condensate, or from its freezing.
The drainage connection line must be perfectly sealed, and well protected
from the risk of freezing.
Before the initial start-up of the appliance, check the condensate will be
properly drained off.
3.6 Gas connection
Before connecting the appliance to the gas supply, check that:
- national and local installation regulations are complied with
- the gas type is the one suitable for the appliance
- the piping is clean.
The gas pipe must be installed outdoors. If the pipe goes through the wall,
it must go through the central opening, in the lower part of the template.
It is advisable to install a fi lter of suitable dimensions on the gas line if the
distribution network contains solid particles.
Once the appliance has been installed, check the connections are sealed
according to current installation regulations.
3.7 Electrical wiring
To access the electrical wiring, proceed as follows:
To access the terminal board:
- turn off the main switch on the system
- undo the fi xing screws (D) on the housing (fi g. 13)
- move the base of the housing forwards and then upwards to unhook it
from the chassis
- undo the fi xing screws (E) from the instrument panel (fi g. 14)
- lift then turn the instrument panel towards you (fi g. 15)
- detach the cover on the board casing (fi g. 16)
- insert the cable of any room thermostat to be fi tted.
The room thermostat must be connected as indicated in the wiring diagram.
Low voltage room thermostat input (24V DC).
It must be connected to the mains power supply via a double-pole isolating
switch with minimum contact gap of 3.5 mm (EN 60335/1 - category 3).
The appliance operates with an alternating current of 230 Volt/50 Hz and
an electrical output of 110 W (25 C.S.I.) (and complies with the standard
EN 60335-1).
It is obligatory to ensure the earth connection is safe, in compliance with
the current directives.
The installer is responsible for ensuring the appliance is correctly
earthed; the manufacturer will not be liable for any damage resulting
from an incorrect or missing earth connection
It is also advisable to respect the live-neutral connection (L-N).
The earth conductor must be a couple of cm longer than the others.
The boiler can operate with a phase-neutral or phase-phase supply.
For power supplies that are not earthed, it is necessary to use an isolating
transformer with earthed secondary.
Do not use gas and/or water pipes to earth electrical appliances.
Use the power cable supplied to connect the boiler to the mains power
supply.
If the power cable needs to be replaced, use a cable of the HAR H05V2V2-
F type, 3 x 0.75 mm2, with a maximum external diameter of 7 mm.
3.8 Filling the heating system
Once the hydraulic connections have been carried out, fi ll the heating sys-
tem.
This operation must be carried out with cold system, according to the fol-
lowing instructions (fi g. 17):
- open the automatic air vent by turning the plug on the lower valve (A) and
upper valve (E) two or three turns, to bleed the air continuously, leave
valve plugs A-E open
- ensure that the cold water inlet tap is open
- open the fi lling tap (B) until the pressure indicated by the water gauge is
between 1 and 1.5 bar
- close the fi lling tap.
Note: the boiler is bled automatically via the two automatic bleed valves
A and E, positioned on the circulator and inside the air distribution box re-
spectively.
If you encounter problems bleeding the boiler, proceed as described in
paragraph 3.11.
3.9 Draining the heating system
Before starting to drain the system, switch off the electrical supply by turn-
ing off the main switch of the system.
Close the shut-off devices on the heating system
Manually loosen the system drain valve (D)
3.10 Draining the domestic hot water system
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
- drain the lowest points.
3.11 Bleeding the air from the heating circuit and boiler
During the initial installation phase, or in the event of extraordinary main-
tenance, you are advised to perform the following sequence of operations:
1. Use a CH11 spanner to open the manual air vent valve located above
the air distribution box (fi g.18). Connect the tube (supplied with the
boiler) to the valve, so the water can be drained into an external con-
tainer.

6
QUADRA GREEN 25 C.S.I.
2. Open the system fi lling tap located on the hydraulic unit and wait until
water begins to drain out of the valve.
3. Switch on the electricity supply to the boiler, leaving the gas tap turned off.
4. Activate a heat request via the room thermostat or the remote control
panel, so that the 3-way valve goes into heating mode.
5. Activate a DHW request as follows:
instantaneous boilers: open a tap, for 30 seconds every minute so
that the three-way valve switches from heating to domestic hot water
and vice versa about ten times. In this situation, the boiler will go into
alarm mode due to the absence of gas, so it must be reset every time
this happens.
heat-only boilers connected to an external storage tank: activate the
thermostat on the storage tank;
6. Carry on with the sequence until only water leaks out of the manual air
vent valve, and the air fl ow has stopped. Close the manual air vent valve.
7. Check the system pressure level is correct (the ideal level is 1 bar).
8. Turn off the system fi lling tap.
9. Turn on the gas tap and ignite the boiler.
3.12 Flue gas discharge and air suction
Observe local legislation regarding fl ue gas discharge.
Flue gases are discharged from a centrifugal fan located inside the combus-
tion chamber and the control board constantly checks that this is working
correctly. The boiler is supplied without the fl ue gas discharge/air suction kit,
since it is possible to use the accessories for appliance with a forced draught
sealed chamber that better adapts to the installation characteristics. For fl ue
gas extraction and the restoration of boiler combustion air, it is essential to
only use certifi ed piping. Connection must be carried out correctly as indicated
in the instructions supplied as standard with the fl ue gas accessories.
Multiple appliances can be connected to a single smoke pipe provided that
each is a sealed chamber-type appliance. The boiler is a Type C appliance
(sealed chamber), and must therefore have a safe connection to the fl ue
gas discharge pipe and to the combustion air suction pipe; these both carry
their contents outside, and are essential for the operation of the appliance.
POSSIBLE OUTLET CONFIGURATIONS (FIG. 24)
B23P/B53P Suction indoors and discharge outdoors
C13-C13x Discharge via concentric wall outlet. The pipes may leave the
boiler independently, but the outlets must be concentric or suffi ciently close
together to be subjected to similar wind conditions (within 50 cm)
C23 Discharge via concentric outlet in common smoke pipe (suction and
discharge in the same pipe)
C33-C33x Discharge via concentric roof outlet. Outlets as for C13
C43-C43x Discharge and suction in common separate smoke pipes, but
subjected to similar wind conditions
C53-C53x Separate discharge and suction lines on wall or roof and in areas
with different pressures. The discharge and suction lines must never be
positioned on opposite walls
C63-C63x Discharge and suction lines using pipes marketed and certifi ed
separately (1856/1)
C83-C83x Discharge via single or common smoke pipe and wall suction line
C93-C93x Discharge on roof (similar to C33) and air suction from a single
existing smoke pipe
“FORCED OPEN” INSTALLATION (TYPE B23P/B53P)
Flue gas discharge pipe ø 80 mm (fi g. 20)
The fl ue gas discharge pipe can be directed to the most suitable direction
according to installation requirements. For installation, follow the instruc-
tions supplied with the kit. In this confi guration, the boiler is connected to
the fl ue gas discharge pipe (ø 80 mm) through an adaptor (ø 60-80 mm).
In this case, the combustion air is picked up from the boiler instal-
lation room (which must be a suitable technical room with proper
ventilation).
Uninsulated fl ue discharge outlet pipes are potential sources of danger.
Arrange the fl ue gas discharge pipe so it slopes by 1% towards the boiler.
The boiler automatically adapts the purging to the type of installation
and the length of the pipe.
maximum length of the fl ue gas
discharge pipe ø 80 mm
pressure drop
45° bend 90° bend
25 C.S.I. 70 m 1 m 1,5 m
*“Straight length” means without bends, drainage terminals or joints.
“SEALED” INSTALLATION (TYPE C)
The boiler must be connected to concentric or twin fl ue gas discharge pipes
and air suction pipes, both leading outdoors. The boiler must not be oper-
ated without them.
Concentric pipes (ø 60-100 mm) (fi g.21)
The concentric pipes can be placed in the most suitable direction according
to installation requirements, complying with the maximum lengths indicated
in the table.
Arrange the fl ue gas discharge pipe so it slopes by 1% towards the
boiler.
Non-insulated outlet pipes are potential sources of danger.
The boiler automatically adapts the purging to the type of installation
and the length of the pipe.
Do not obstruct or choke the combustion air suction pipe in any way.
For installation, follow the instructions supplied with the kit.
Horizontal
straight length *
concentric pipe ø 60-100 mm
pressure drop
45° bend 90° bend
25 C.S.I. 5,85 m 1,3 m 1,6 m
*“Straight length” means without bends, drainage terminals or joints.
Vertical
straight length *
concentric pipe ø 60-100 mm
pressure drop
45° bend 90° bend
25 C.S.I. 6,85 m 1,3 m 1,6 m
*“Straight length” means without bends, drainage terminals or joints.
If the boiler must be installed with drainage below, use the special elbow (kit
available on request – see Parts Catalogue).
In this type of installation, the inner pipe of the elbow must be cut at the
point shown in fi g. 22 to allow the elbow itself to be inserted more easily into
the fl ue gas discharge on the boiler.
Concentric pipes (ø 80-125)
For this confi guration, the special adaptor kit must be fi tted. The concentric
pipes can face in the direction most suitable for installation requirements.
For installation, follow the instructions supplied with the specifi c condensing
boilers kits.
straight length *
concentric pipe ø 80-125 mm
pressure drop
45° bend 90° bend
25 C.S.I. 15,3 m 1,0 m 1,5 m
*“Straight length” means without bends, drainage terminals or joints.
Twin pipes (ø 80 mm) (fi g. 23)
The twin pipes can face in the direction most suited to the installation re-
quirements. For installation, follow the instructions supplied with the spe-
cifi c accessory kit for condensing boilers.
To use the combustion air suction pipe, one of the two inlets (A and B) must
be selected. Remove the closure plug which is fi xed using screws, and use
the specifi c adaptor relating to the inlet selected (C air inlet adaptor ø 80 - D
air inlet adaptor from ø 60 to ø 80) available as an accessory.
Arrange the fl ue gas discharge pipe so it slopes by 1% 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
pressure drop
45° bend 90° bend
25 C.S.I. 45+45 m 1,0 m 1,5 m
*“Straight length” means without bends, drainage terminals or joints.

7
ENGLISH
MAXIMUM STRAIGHT LENGTH Ø 80
Suction pipe length (m)
Discharge pipe length (m)
80
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
0 5 10 15 20 25 30 3 5 40 45 50 55 60 65 70 7 5 80 85 90 95
100
100
105
105
110
110
Quadra Green 25 C.S.I.
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 fl ue gas sensor meter reading (-C- XX) (see paragraph
4.3 - 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 (fi g. 25).
To interrupt the automatic purge cycle proceed as follows:
access the electronic board by removing the housing, turning the instru-
ment panel towards you and opening the board casing (fi g. 16)
Then:
- using a small screwdriver included, press the CO button (fi g. 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 fl ow 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 (fi g. 27) within the marked area,
the boiler provides domestic hot water and heating. If there is a heat re-
quest, the boiler switches on and the boiler status indicator LED lights up
with a fi xed green light. The digital monitor indicates the heating water tem-
perature, the icon to indicate heating and the fl ame icon (fi g. 29).
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a fi xed green light.
The digital display shows the hot water system temperature, the icon to
indicate the hot water supply and the fl ame icon (fi g. 30)
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(fi g. 27) within the marked area.
Depending on the type of system, it is possible to pre-select the suitable
temperature range:
- standard systems 40-80°C
- fl oor systems 20-45°C.
For further details, consult the “Boiler confi guration” section.
Adjusting heating water temperature with an external probe connected
When an external probe is connected, the value of the delivery temperature
is automatically chosen by the system which rapidly adjusts ambient tem-
perature to the changes in external temperature.
To increase or decrease the temperature with respect to the value automati-
cally calculated by the electronic board, turn the heating water selector (Fig.
12.6) 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: turning the selector to the summer mode symbol (fi g.
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 fi xed green light. The digital di-
splay shows the hot water system temperature, the icon to indicate the hot
water supply and the fl ame icon (fi g. 30).
Pre-heating (faster hot water): turning the domestic hot water tempera-
ture adjustment knob to the symbol (fi g. 31) activates the pre-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 tem-
perature adjustment knob back to the symbol. The yellow LED will
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
(fi g.32) to (OFF).
Adjustment of the domestic hot water temperature
To adjust the domestic hot water temperature (bathrooms, shower, kitchen,
etc.), turn the knob with the symbol (fi g. 33) rotate clockwise to increase
the temperature and anticlockwise to reduce it. On the control panel, the
green LED fl ashes 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 fi xed green to indicate fl ame 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 symbol (fi g. 34) on the control panel
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.) fi g. 35
Setting the heating water temperature selector to the area marked “AUTO”
(temperature range 55 to 65°C), activates the automatic temperature con-
trol system (frequency 0.1 sec. on; then 0.1 sec. off; for 0.5 seconds): ac-
cording 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 fl ashes ON for 0.5 seconds,
OFF for 3.5 seconds.
Reset function
To restore operation, set the function selector to (fi g. 32), wait 5-6 sec-
onds 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, con-
tact the Technical Assistance Service.
4.2 Switching off
Temporary switch-off
In case of absence for short periods of time, set the mode selector (fi g.
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 mini-
mum output levels to bring the water temperature back to the values for
safety (35°C). During the anti-frost cycle, the symbol (fi g. 36) appears
on the digital monitor.

8
QUADRA GREEN 25 C.S.I.
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 (fi g. 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.
4.3 Light signals and faults
BOILER STATUS DISPLAY RED LED YELLOW LED GREEN LED TYPES OF
ALARMS
Off status(OFF) OFF fl ashing 0.5 on/
3.5 off None
Stand-by - fl ashing 0.5 on/
3.5 off Signal
ACF alarm lockout module A01 on Defi nitive lockout
ACF electronics fault alarm
Limit thermostat alarm A02 fl ashing 0.5 on/
0.5 off Defi nitive lockout
Tacho fan alarm A03 on Defi nitive lockout
Water pressure switch alarm A04 on on Defi nitive lockout
NTC domestic water fault A06 fl ashing 0.5 on/
0.5 off fl ashing 0.5 on/ 0.5 off Signal
NTC heating outlet fault
A07 on
Temporary stop
Heating outlet probe overtemperature Temporary then
defi nitive
Outlet/return line probe differential alarm Defi nitive lockout
NTC heating return line fault
A08 on
Temporary stop
Heating return line probe overtemperature Temporary then
defi nitive
Outlet/return line probe differential alarm Defi nitive lockout
Cleaning the primary heat exchanger
A09
fl ashing 0.5 on/
0.5 off fl ashing 0.5 on/ 0.5 off
Signal
NTC fl ue gases fault Temporary stop
Flue gases probe overtemperature on Defi nitive lockout
False fl ame A11 fl ashing 0.2 on/
0.2 off Temporary stop
Low temperature system thermostat alarm A77 on Temporary stop
Temporary pending ignition fl ashing 0.5 on/
0.5 off Temporary stop
Water pressure switch intervention fl ashing 0.5 on/
0.5 off Temporary stop
Calibration service ADJ fl ashing 0.5 on/
0.5 off
fl ashing 0.5 on/0.5
off fl ashing 0.5 on/
0.5 off Signal
Calibration installer
Chimney sweep ACO fl ashing 0.5 on/0.5
off Signal
Vent cycle fl ashing 0.5 on/
1.0 off fl ashing 0.5 on/1.0 off fl ashing 0.5 on/ 1.0 off Signal
Preheating active function on Signal
Preheating heat request fl ashing Signal
External probe presence Signal
Domestic water heat request 60°C Signal
Heating heat request 80°C Signal
Antifreeze heat request Signal
Flame present on Signal

9
ENGLISH
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position (summer mode) or (winter mode).
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
Fault A 04
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 (OFF) and adjust the fi lling tap
until the pressure reaches a value between 1 and 1.5 bar. Then position
the mode selector to the desired position (summer) or (winter).
The boiler will perform one purge cycle lasting approximately 2 minutes. If
pressure drops are frequent, request the intervention of the Technical As-
sistance Service.
Fault A 06
The boiler operates normally but cannot reliably maintain a constant do-
mestic hot water temperature, which remains set at around 50°C. Contact
the Technical Assistance Centre.
Fault A 07 - A 08
Contact the Technical Assistance Centre.
Fault A 09 with fi xed red LED lit
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position (summer mode) or (winter mode). If the reset attempts
do not reactivate the boiler, request the intervention of the Technical As-
sistance Service.
Fault A 09 with fl ashing red and green LEDs
The boiler is equipped with an auto-diagnostic system which, based on the
total number of hours in certain operating conditions, can signal the need
to clean the primary exchanger (alarm code 09 with fl ashing red and green
LEDs and fl ue gas meter >2,500). Once the cleaning operation has been
completed, using the special kit supplied as an accessory, the total hour
meter will need to be reset to zero as follows:
- switch off the power supply
- remove the housing
- loosen the fi xing screw then turn the instrument panel
- loosen the fi xing screws on the cover (F) to access the terminal board (fi g. 16)
- while the boiler is powered up, using a small screwdriver included, press
the CO button (fi g. 26) for at least 4 seconds, to check the meter has
been reset, power down then power up the boiler; the meter reading is
shown on the monitor after the “-C-” sign.
Live electrical parts (230 V AC).
Note: the meter resetting procedure should be carried out after each in-
depth cleaning of the primary exchanger or if this latter is replaced. To
check the status of the total hour meter, multiply the reading by 100 (e.g.
reading of 18 = 1800 total hours; reading of 1 = 100 total hours).
The boiler continues to operate normally even when the alarm is activated.
Fault A 77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
Fixed yellow LED
Pre-heating function activated
Flashing yellow LED
Combustion analysis in progress.
4.4 Alarm records
The “ALARM RECORDS” function starts automatically once the display has
been on for 2 hours, or immediately by setting the P1 parameter to 1.
The records include all the latest alarms, up to a maximum of 5 alarms, and
they are displayed in sequence by pushing and releasing the P1 button on
the display board. If the records are empty (P0=0) or if tracking the same is
disabled (P1=0), the display function is not available. Alarms are displayed
in reverse order compared to the order in which they occurred: this means
that the last alarm generated is the fi rst to be displayed. To delete the
alarms records, simply set parameter P0 to 0.
NOTE: To get to the P1 button the cover on the control panel must be remo-
ved and the display board must be identifi ed (fi g. 37a).
PROGRAMMING PARAMETERS
Functioning of the display can be personalised by programming three pa-
rameters:
Param. Default Description
P0 0 Deletion of alarms records
(0 = records empty / 1 = records not empty)
P1 0 Immediate activation of alarm record management
(0 = delayed records management activated / 1 =
immediate records management activated
P2 0 Do not change
envisaged delivery T. - Tshift
KT= 20- min. envisaged external T.
When button P1 on the display (fi g. 37a) is held down for at least 10 sec,
the programming procedure is activated. The three parameters, with their
respective values, are shown in rotation on the display (fi g. 37b). To edit a
parameter value, simply push the P1 button again when the required para-
meter is displayed, and then hold it down until the value switches from 0 to
1 or vice-versa (approx. 2 sec).
The programming procedure is closed automatically after 5 minutes, or if
there is an electrical power failure
4.5 Boiler confi guration
There is a series of jumpers (JPX) available on the electronic board which
enable the boiler to be confi gured.
To access the board, proceed as follows:
- turn off the main switch on the system
- loosen the fi xing screws on the housing, move the base of the housing
forwards and then upwards to unhook it from the chassis
- undo the fi xing screws (E) from the instrument panel (fi g. 14)
- loosen the screws (F - fi g. 16) to remove the cover of the terminal board
(230V)
JUMPER JP7 - fi g. 38:
preselection of the most suitable heating temperature adjustment fi eld ac-
cording to the installation type.
Jumper not inserted - standard installation
Standard installation 40-80°C
Jumper inserted - fl oor installation
Floor installation 20-45°C.
In the manufacturing phase, the boiler is confi gured for standard installations.
JP1
Calibration (Range Rated)
JP2 Reset heating timer
JP3 Calibration (see paragraph on “Adjustments”)
JP4 Absolute domestic hot water thermostat selector
JP5 Do not use
JP6 Enable night-time compensation function and continuous pump (only
with external sensor connected)
JP7 Enable management of low temperature/standard installations (see
above)
JP8 Do not use
4.6 Setting the thermoregulation (graphs 1-2-3)
The thermoregulation only operates with the external sensor connected;
once installed, connect the external sensor (accessory available on request)
to the special terminals provided on the boiler terminal board (fi g. 5).
This enables the THERMOREGULATION function.
Selecting the compensation curve
The compensation curve for heating maintains a theoretical temperature of
20°C indoors, when the external temperature is between +20°C and -20°C.
The choice of the curve depends on the minimum external temperature
envisaged (and therefore on the geographical location), and on the delivery
temperature envisaged (and therefore on the type of system). It is carefully
calculated by the installer on the basis of the following formula:
Tshift = 30°C standard installations
25°C fl oor installations
If the calculation produces an intermediate value between two curves, you
are advised to choose the compensation curve nearest the value obtained.
Example: if the value obtained from the calculation is 1,3 this is between
curve 1 and curve 1,5. Choose the nearest curve, i.e. 1,5.
Select the KT using trimmer P3 on the board (see multiwire wiring diagram).
To access P3:
- remove the housing,
- loosen the fi xing screw on the instrument panel
- turn the instrument panel towards you
- loosen the fi xing screws on the terminal board cover
- unhook the board casing
Live electrical parts (230 V AC).
The KT values which can be set are as follows:
standard installation: 1,0-1,5-2,0-2,5-3,0
fl oor installation 0,2-0,4-0,6-0,8
and these are displayed for approximately 3 seconds after rotation of the
trimmer P3.
TYPE OF HEAT REQUEST
Boiler connected to room thermostat (JUMPER 6 not inserted)
The heat request is made by the closure of the room thermostat contact,
while the opening of the contact produces a switch-off. The delivery tem-
perature is automatically calculated by the boiler, although the user may
modify the boiler settings. Using the interface to modify the HEATING, you

10
QUADRA GREEN 25 C.S.I.
will not have the HEATING SET-POINT value available, but a value that you
can set as preferred between 15 and 25°C. The modifi cation of this value
will not directly modify the delivery temperature, but will automatically affect
the calculation that determines the value of that temperature, altering the
reference temperature in the system (0 = 20°C).
Boiler connected to a programmable timer (JUMPER JP6 inserted)
With the contact closed, the heat request is made by the delivery sensor, on
the basis of the external temperature, to obtain a nominal indoor tempera-
ture on DAY level (20°C). With the contact open, the boiler is not switched
off, but the weather curve is reduced (parallel shift) to NIGHT level (16°C).
This activates the night-time function. The delivery temperature is automati-
cally calculated by the boiler, although the user may modify the boiler set-
tings. Using the interface to modify the HEATING, you will not have the
HEATING SET-POINT value available, but a value that you can set as pre-
ferred between 25 and 15°C. The modifi cation of this value will not directly
modify the delivery temperature, but will automatically affect the calculation
that determines the value of that temperature, altering the reference tempera-
ture in the system (0 = 20°C for DAY level, and 16°C for NIGHT level).
4.7 Adjustments
The boiler has already been adjusted by the manufacturer during produc-
tion. If the adjustments need to be made again, for example after extraordi-
nary maintenance, replacement of the gas valve, or conversion from meth-
ane gas to LPG, observe the following procedures.
The adjustment of the maximum and minimum output, and of the maximum
and minimum heating and of slow switch-on, must be made strictly in the
sequence indicated, and only by qualifi ed personnel only:
- disconnect the boiler from the power supply
- turn the heating water temperature selector to its maximum
- loosen the fi xing screws (E) on the instrument panel (fi g. 14)
- lift then turn the instrument panel towards you
- loosen the fi xing screws on the cover (F) to access the terminal board (fi g. 16)
- insert the jumpers JP1 and JP3 (fi g. 40)
- power up the boiler
The three LEDs on the instrument panel fl ash simultaneously and the dis-
play shows “ADJ” for approximately 4 seconds
Next change the following parameters:
1 - Domestic hot water/absolute maximum
2 - Minimum
3 - Heating maximum
4 - Slow switch-on
as follows:
- turn the heating water temperature selector to set the required value
- press the CO button using a small screwdriver included (fi g. 26) and then
skip to the calibration of the next parameter.
Live electrical parts (230 V AC).
The following icons light up on the monitor:
1. during domestic hot water/absolute maximum calibration
2. during minimum calibration
3. during heating maximum calibration
4. during slow switch-on calibration
End the procedure by removing jumpers JP1 and JP3 to store these set val-
ues in the memory. The function can be ended at any time without storing
the set values in the memory and retaining the original values as follows:
- remove jumpers JP1 and JP3 before all 4 parameters have been set
- set the function selector to (OFF/RESET)
- cut the power supply 15 minutes after it is connected.
Calibration can be carried out without powering up the boiler.
By turning the heating selection knob, the monitor automatically
shows the number of rotations, expressed in hundreds (e.g. 25 =
2,500 rpm).
The function for visualizing the setting parameters is activated by the func-
tion selector in summer and in winter, by pressing the CO button on the
circuit board, either with or without request for heat. This function cannot be
activated when connected to a remote control. Upon activating the function
the setting parameters are visualized in the order given below, each for 2
seconds. Each parameter is displayed together with its corresponding icon
and fan rotation speed measured in hundreds
1. Maximum
2. Minimum
3. Max. heating
4. Slow ignition P
5. Max. preset heating
GAS VALVE CALIBRATION
- Connect the boiler to the power supply
- Open the gas tap
- Set the function selector to (OFF/RESET) (monitor off)
- Loosen the screws (E), remove the housing, then lower the instrument
panel towards you (fi g. 14)
- Loosen the fi xing screws on the cover (F) to access the terminal board
(fi g. 16)
- Using a small screwdriver included, press the CO button (fi g. 26)
Live electrical parts (230 V AC).
- Wait for burner ignition.
The display shows “ACO” and the yellow LED fl ashes. The boiler oper-
ates at maximum heat output.
The “combustion analysis” function remains active for a limited time (15
min); if a delivery temperature of 90°C is reached, the burner is switched
off. It will be switched back on when this temperature drops below 78°C.
- Insert the analyser probe in the ports provided in the air distribution box,
after removing the screws from the cover (fi g. 41)
- Press the “combustion analysis” button a second time to reach the num-
ber of rotations corresponding to the maximum domestic hot water output
(table 1); the yellow LED continues to fl ash while the red LED is fi xed
- Check the CO2 value: (table 3) if the value does not match the value
given in the table, use the gas valve maximum adjustment screw
- Press the “combustion analysis” button a third time to reach the number
of rotations corresponding to the minimum output (table 2); the yellow
LED continues to fl ash while the green LED is fi xed
- Check the CO2 value: (table 4) if the value does not match the value
given in the table, use the gas valve minimum adjustment screw
- To exit the “combustion analysis” function, turn the control knob
- Remove the fl ue gas probe and refi t the plug
- Close the instrument panel and refi t the housing.
The “combustion analysis” function is automatically deactivated if the board
triggers an alarm. In the event of a fault during the combustion analysis
cycle, carry out the reset procedure.
table 1
MAXIMUM NUMBER OF
FAN ROTATIONS
METHANE
GAS (G20)
LIQUID GAS
(G31)
25 C.S.I. heating - DHW 49 - 61 49 - 61 rpm
table 2
MINIMUM NUMBER OF
FAN ROTATIONS
METHANE
GAS (G20)
LIQUID GAS
(G31)
14 14 rpm
table 3
Max. CO2
METHANE
GAS (G20)
LIQUID GAS
(G31)
9,0 10,5 %
table 4
Min. CO2
METHANE
GAS (G20)
LIQUID GAS
(G31)
9,5 10,5 %
4.8 Gas conversion (fi g. 42-43)
Gas conversion from one family of gases to another can also be easily
performed when the boiler is installed.
This operation must be carried out by professionally qualifi ed personnel.
The boiler is designed to operate with methane gas (G20) according to the
product label.
It is possible to convert the boiler to propane gas, using the special kit.
For disassembly, refer to the instructions below:
- switch off the power supply to the boiler and close the gas tap
- remove in sequence: housing and air distribution box cover
- remove the fi xing screw from the instrument panel
- unhook and turn the instrument panel forwards
- remove the gas valve (A)
- remove the nozzle (B) inside the gas valve and replace it with the nozzle
from the kit
- refi t the gas valve
- remove the silencer from the mixer
- open the two half-shells by prising apart the corresponding hooks (C)
- replace the air diaphragm (D) in the silencer
- refi t the air distribution box cover
- re-power the boiler and turn on the gas tap