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National norms may include
restrictions on installation in
bathrooms. Installation is at
the purchaser’s expense.
Merloni TermoSanitari S.p.A.
shall not be held responsible
for any damage caused by
incorrect installation or
because the rules in this
handbook have not been
followed correctly.
In particular:
L
SEM0510-100
S
L =
130 ÷ 290
GB0304-050
• Install the appliance at a minimum height of
over 1 m. Above floor level, so that the re-
sistances can be removed.
Use the rawl plugs K supplied with the appli-
ance to fasten the support hooks G to the wall.
Hook on the water heater and pull it downwards
to check that it is fastened correctly.
NB: Make sure that bracket S has been well hooked
on.
GENERAL WARNINGS
4
INSTALLATION
5
5.1 H
OW TO FASTEN TO THE WALL
K
G
SEM0510-140
A
SEM0510-130
F
• Use pipes that will resist operative pressure as well as hot water tempera-
tures that can normally rise to and even exceed 80°C to connect the water
heater intake and output. It is inadvisable, therefore, to use materials that will
not withstand this kind of temperature.
• Screw a pipe connection K on to the appliance water inlet I marked with a
blue ring.
• A tap B to empty the water heater must be screwed on one side of the pipe
connection. A special tool must be used to turn this tap. A safety valve A
supplied with the appliance must be screwed on to the other side of the con-
nection.
• Connect the latter to the mains cold water pipe by means of a hose pipe F.
Also install a drain pipe C to be used if the tap B is opened.
• When the safety valve is screwed on, take care not to force it as far as it will
go and do not tamper with it.
A slight drip is normal during heating; we therefore advise you to connect the
valve to a drain by means of a small pipe E. A discharge pipe E connected to the
pressure relief device is to be installed in a continuously downward direction
and in a frost-free ambient.
If the mains pressure should be similar to the valve pressure setting, a pressure
reducer should be installed as far away as possible from the appliance.
• Fill the water heater and make sure there are no leaks.
• In order to empty the water heater close the main intake tap, open the hot
water tap and the drain tap B.
B
C
D
A
E
K
B
I
C
5.2 P
LUMBING
12
13
• electrical wiring must com-
ply with what is specified
in paragraph 5.3;
• the safety valve supplied
with the appliance must
not be tampered with and
must not be replaced at
the time of installation;
• installation must be carried
out by qualified personnel;
• the mains supply must be
the same as that given in
the data on the rating plate
showing the characteris-
tics of the appliance;
• the earth must be installed
correctly;
• do not use extensions or
pressure reducing devices.
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