11
remove any residue. Connect the water heater to the gas pipe of
the internal system and fit upstream from the appliance a valve for
gas interception and opening.
Comply with the prescriptions of the relevant standard.
For initial start-up of the appliance, the following checks must be
carried out by qualified technicians:
- Checking for internal and external leakage of the gas supply
system
- Adjustment of the gas flow rate according to the power required
by the appliance
- That the appliance is powered by the type of gas for which it was
designed
- That the gas supply pressure is in the range between the values
indicated on the data plate
- That the gas supply system is dimensioned for the capacity re
-
quired by the appliance and is equipped with all the safety and
control devices required by current regulations.
LPG Water heaters
ueled by cylinders equipped with intercep
-
tion and regulation devices, must be connected to guarantee
safety conditions for people and environment: comply with the
regulations of the law, we also recommend the installation of
appropriate filters for the interception of any impurities.
In case of prolonged absence of the user of the appliance, close the
main gas supply valve to the appliance.
Do not obstruct the ventilation openings of the room where a gas
appliance is installed in order to avoid dangerous situations such
as the formation of toxic and explosive mixtures.
Do not use the gas pipes as electrical appliance earthing devices.
Water connection
Connect the water heater to the water mains and fit a water shut-off
valve upstream from the appliance.
Looking at the appliance, the cold water inlet is on the right and the
hot water outlet is on the left.
Make sure that the piping of your water system is not being used as
an earth electrode for your electric or telephone system
. It would
be completely unsuitable for this purpose.
Severe damage to the pipes could occur in a short space of time
and to the appliance.
The minimum distance between the water heater and sampling point
of hot water must exceed of 0,5 m
Water temperature greater than 50°C causes severe
burns. Always check the water temperature before
any use.
Evacuation of combustion products
The manufacturer separately supplies various types of air intake
and fume exhaust pipes specific for any installation need.
By varying the type of installation the classification of the water
heater also varies, precisely:
h
B type: the terminal takes air intake directly from the room in
which the water heater has been installed. The room must be
ventilated by a suitable air intake meeting current standards.
h
C type: The water heater is a type C appliance (sealed cham
-
ber) and must therefore have a secure connection to the flue
release tube and combustion air intake that both flow outside
and without which the appliance cannot function.
In rooms with corrosive vapour risks (for example, laundries, hair
dressers, galvanic processing rooms, etc.), it is very important to
use the type C installation with air intake for combustion from the
outdoors.
This protects the appliance against corrosion effects.
For exhaust product evacuation, refer to current regulations. The
water heater uses original pipes and other of the same EC certi
-
fied specifications for fume exhaust and recovery of combustible
air to ensure that the connection is correct, as indicated by the in
-
structions supplied with the fume accessories. Several appliances
can be connected to a single flue provided that they are all sealed
chamber type (refer to current regulations).
Pipes should not be in contact or near flammable mate
-
rials and should not cross flammable walls or flammable
material structures.
The ducts reach high temperatures, use pipes made of
suitable material.
TYPE B22/B22P: Open chamber and forced draught for indoor use
The water heater should not be installed in rooms where commer
-
cial, crafts or industrial activities are performed, where products
able to develop products or substances that can be harmful to ap
-
pliance components and jeopardise operations are used. The water
heater cannot be installed in bedrooms, bathrooms, studio apartments
or where there are open chimneys without their own air flow.
The installation room must have adequate ventilation, meeting all
current regulations.
TYPE B32: Horizontal coaxial exhausts
In this configuration, combustion product exhaust is outside the
home through concentric pipes, while air intake is in the room whe
-
re the appliance is installed.
TYPE C: Horizontal coaxial exhausts
In this configuration, air intake and combustion product exhaust is
outside the home through concentric pipes. Coaxial exhausts can
be faced in the direction most appropriate to room needs, meeting
the methods and lengths indicated in the following table.
The reference quotas for where to trace wall hole for the support
bracket are provided in figure 9.
TYPE C: Vertical coaxial exhausts
Use the vertical exhaust manifold and, if necessary, the relevant
extensions, observing the maximum admitted lengths as indicated
in the table.
TYPE C: Split exhausts
In this configuration, the intake and exhaust pipes are separate:
combustion air intake is from outside the home (AS) and combu
-
stion product exhaust (SC) in a chimney or flue (see fig. 11)
Split exhausts can face the direction most appropriate to room needs.
The top view of the water heater is provided in figure 9 with the
reference quotas for fume exhaust and combustion air intake di
-
stances from the support bracket.
By referring to the length
of pipes, choose and in
-
sert the correct flange:
see the different dia
-
meters included in the
packaging (see tab. in
next page).
Fig. 9 - Top view with distances
9 2 . 5
1 0 0
1 0 0
9 2 . 5
85
70
8 0
1 9 2 . 5
1 9 2 . 5
59
142
