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ry to request the assistance of a qualified technician according to
law in force, to check the correct release of flue gas through the
release conduit and/or the smoke channel, according to the instal-
lation regulation.
It is highly prohibited to attempt to modify or remove the flue gas
safety device; this risks the safety of the user and persons in the
area. Only a qualified technician who is authorised by the manu-
facturer can meddle with the safety device in order to check it's
functionality 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 water heater.
2.h Gas transformation
Transforming the product so it may receive a different type of gas
can be easily performed even while it is mounted. The instructions
for transforming and regulating the product to receive various types
of gas are below.
This operation must be performed by qualified personnel according
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 and water supply are switched off.
I – SUBSTITUTION OF THE PILOT INJECTOR
- Disconnect the pilot flame tube (Fig. 8-9)
- Remove the pilot injector
- Insert the seal contained in the transformation kit (Fig. 10)
II – SUBSTITUTION OF THE BURNER INJECTORS
- Remove the screws that hold the pilot flame in position (Fig. 11)
- Remove the screws that hold the diffuser in place (Fig. 12)
- Turn on the left the pilot group (Fig. 13)
- Remove the 4 screws of the gas valve (Fig. 14)
- Disconnect the water valve from the water supply removing the
inlet connection (Fig. 15)
- Disconnect the microswitch's cables (Fig. 16)
- Remove the connection (see part. 1 - Fig. 17) and turn on the right
the water valve and the diffuser as indicated in Fig. 18
- Disconnect the water valve and the diffuser from the water inlet
pipe by the nut (see part. 2 in Fig. 19 and 17) and at the same time
extract the large spring and the small spring/modulation valve set
(Fig. 20)
- Unscrew the injectors and substitute them with those found in the
transformation kit (Fig. 21)
Fig. 8
Fig. 11
III – SUBSTITUTION OF THE MODULATION VALVE
After the operations of the points I and II
- Substitute the modulation valve with the one in the kit
- Insert the valve and the large spring, taking care with the direction
of the insertion (Fig. 22-22a) and making sure that the drilled spring
guide disc is in its correct position (Fig. 23)
IV – DISABLING THE GAS ADJUSTER
- Remove the protective cap (Fig. 24)
- Regulate the supply calibration screws so that the maximum
amount of gas can pass (disk completely horizontal), referred to
technica data tab.
TRANSFORMATION FROM LPG TO METHANE GAS
Execute operations I, II and III described above
IV – ENABLING THE GAS ADJUSTER
- Remove the protective cap
- Regulate the pressure screws so that the burner reaches the
pressure levels indicated on the technical data
After the gas transformation:
Fig. 9
Fig. 12
10
It is necessary to use a pressure regulator that operates at
30 mbar for Butane Gas and at 37 mbar for Propane Gas.
The above values must be measured using a barometer con-
nected to the devices pressure entrance.
Ensure that the gas pressure is at 20 mbar.
WARNING – IMPORTANT
Check that all the di-
sassembled parts are
perfectly sealed once
the device is opera-
tional using a soapy
solution.
Write on adhesive pa-
per "Converted to", in-
cluding the date of the
operation, the name
and signature of the
person who performed
the transformation and
attach it to the device
near the older informa-
tion plate.
Fig. 10
Fig. 13
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