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2.e Water connection
Connect the water heater to the water supply and insert a tap to in-
tercept the water above the device. From the front, the cold water
input is on the right and the hot water output is on the left.
Insert the filter into the water valve input fitting.
Remove the plastic nut from the hot water output fittin before
connecting it to the water supply.
Ensure that the tubes of you water system are not used to earth
your electrical system or telephone, they are absolutely inappro-
priate for performing this task.
In a short amount of time this can damage tubes and the device.
WATER CIRCUIT (Fig.6)
1
Flue gas release hood
2
Flue gas safety device
3
Water limit thermostat
4
Heat exchanger
5
Burner
6
Ignition electrode
7
Thermocouple
8
Pilot burner
9
injector
10
Hot water output
11
Pressure intake
12
Temperature selector
13
Venturi
14
Hydraulic valve
15
Water safety valve
16
Water filter
17
Membrane
18
Cold water input
19
Gas control
20
Gas valve
21
Magnet
22
Gas filter
2.f Disposal of waste product
This B11BS water heater is supplied with a device for releasing
flue gas.
For output of combustion by-products refer to the regulations in
force including any updates. See paragraph 2.a
The gas devices with an attachment for a waste gas flue must
be connected directly to properly working chimney or flue pipe;
only if these devices are not present is it then permitted to release
gases directly outside.
The fitting of devices to a chimney or
flue pipe must occur via a smoke channel. Smoke channels must
be connected to a chimney or a smoke channel in the same or
adjacent area to where the device is installed and must be made
of materials resistant to mechanical strain, heat and the effects of
combustion by-products and their condensation.
temperature must always be above condensation temperature in
all points of the smoke channel regardless of external conditions.
FLUE GAS RELEASE SAFETY DEVICE
The product is equipped with a series of flue gas release safety
devices. The device ensures the correct release of combustion by-
products; the flow of combustible gas to the release conduit and
the smoke channel.
The safety device contains a "thermostat" that is connected to the
thermocouple. The safety device's intervention blocks the thermo-
couple and blocks the flow of gas to the main burner as well as the
pilot flame. The safety device can be triggered by the partial or
total obstruction of the release conduit or the smoke channel.
The obstruction can be caused by internal or external influences,
for example:
- a release conduit with an inadequate configuration,
- the reduced diameter of the release conduit
- excessive direction changes (curves)
- counterslope.
The above circumstances obstructs the flow of flue gas to the ou-
tside. The safety device blocks the device, not allowing the flue
gas to fill the area where the device is installed. To again use the
product it is necessary to follow the instructions in the paragraph
"OPERATION"
If the device or its electrical connections breaks down, the machi-
ne operation is blocked. If the machine is constantly blocked as
a result of the flue gas safety device, it is necessary to request
the assistance of a qualified technician according to law in for-
ce, to check the correct release of flue gas through the release
conduit and/or the smoke channel, according to the installation
regulation.
It is highly prohibited to attempt to modify or remove the flue
gas safety device; this risks the safety of the user and per-
sons in the area.
Only a qualified technician who is authorised by the manufacturer
can meddle with the safety device in order to check it's functionali-
ty or to substitute it if necessary.
If it is necessary to replace the device it is vital to only use
"original parts" supplied by the manufacturer since it has
been designed, studied and regulated to be fitted with the wa-
ter heater.
2.g Gas transformation
Transforming the product so it may receive a different type of gas
can be easily performed even while it is mounted. The instruc-
tions for transforming and regulating the product to receive various
types of gas are below.
This operation must be performed by qualified personnel accor-
ding to law in force.
TRANSFORMATION FROM METHANE TO LPG
Transforming the product so it may receive a different type of gas
can be easily performed even while it is mounted.
Before any operation ensure that the gas supply is switched off.
I – SUBSTITUTION OF THE PILOT INJECTOR
- Disconnect the pilot flame tube (fig. 7)
- remove the pilot injector
- insert the injector and seal contained in the transformation kit
(fig. 8),
II – SUBSTITUTION OF THE BURNER INJECTORS
- Remove the screws that hold the pilot flame in position (fig. 9)
- Remove the nut that holds the burner in place (fig. 10)
- Remove the screws that hold the diffuser in place (fig. 11)
- Unscrew the diffuser
- Unscrew the injectors and substitute them with those found in
The flue gas
the transformation kit
III – SUBSTITUTION OF THE MODULATION VALVE
- Loosen the cold water entry ramp nut on the exchanger
- Remove the 4 screws (B) of the gas valve (fig. 12)
- Separate the water/gas valve set
- Extract the large spring and the small spring/modulation valve
set (fig. 13)
- Substitute the modulation valve with the one in the kit
- Insert the valve and the large spring making sure that the drilled
spring guide disk is in the correct position (fig. 14)
- Remount the diffuser attaching it to the upper hole
12
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