Ariston Primo 50 h [3/10] Genera warnings
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Ariston Primo 50 h [3/10] Genera warnings

Ariston Primo 50 h [3/10] Genera warnings
4.2 Water connection
= Screw the safety valve (A) supplied with the
water heater on to the water inlet of the appliance
marked in blue (see Fig. 7).
= Connect the main cold water pipe (B) on the
lower end of the safety valve.
= Connect the drain pipe (C) on the drain end of
the safety valve. Another end of the drain pipe
should be open to the atmosphere. The drain pipe
should be kept downwards on the tilt, in any case
it will not directly face the user.
3
General warnings
Local directives may provide restrictions for
installation of electric water heater in bathrooms.
Merloni TermoSanitari shall not bear
responsibility for any damage caused by incorrect
installation if manual has not been followed
correctly. Installation must be carried out by
qualified personnel.
In particular, attention to the following items
should be paid :
= Electrical wiring must comply with
requirements specified in corresponding
paragraphs.
= The safety valve supplied with the appliance
must be in good condition without any damage,
it must not be tampered with and must not be
replaced with other similar ones.
= Installation must be carried out by qualified
personnel. The screws should be fastened
properly in plastic expansive plugs.
= Confirm the voltage of mains supply to be the
same as that given in data on the rating plate.
= Check grounding condition according to local
directive. The power supply socket for the water
heater should have earth wiring and earthed
properly. Earth wire and neutral wire should be
differentiated and identifiable.
= Do not use any socket converter or extension cable
to match the plug of the water heater. Do not replace
the plug of the heater with other plug. Do not use
portable or reel socket (see Fig. 3 and Fig. 4)
= The power for electric water heater should be
supplied independently, do not share the power
supply with other appliances.
= The power supply socket for the heater should be
arranged in a dry place, away from water splash.
= The power cable is special for this
electric water heater. If damaged, it must
be replaced with the specified power cable
by qualified personnel.
= To disconnect the heater from the
supply, please use a bipolar switch with
contact separation of at least 3mm.
3
4
4.1 How to install the water heater on the wall
The water heater should be installed at least 1½ f" (475mm) from the left hand side to facilitate
easy removal of the inspection cover.
= Confirm that the wall can support double the weight of the heater filled up with water.
= Drill two pre-holes with the diameter a little smaller than that of the plastic expansive plug
using a hammer drill. Then expand the holes using normal drill, until the diameter of the holes is
equal to the diameter of plastic expansive plug.
4
Installation instruction
= To reduce heat loss, the water heater should
be installed in a place nearest to the point of use.
At least a space of 50 cm around the heater should
be kept empty for maintenance purpose.
= You could use other kinds of expansive plugs
and screws according to the structure of the wall.
But make sure that the depth of the expansive plug
in load-bearing part of the wall should not be less
than 40 mm (see Fig. 5).
= Lean the water heater on the wall and move
downwards slowly till the heater catch couples
with the "L" screws on the wall. Pull the heater
downwards to make sure that the appliance has
been fastened reliably (see Fig. 6).
Model Installation distance L (mm)
35 LITERS 366.5
50 LITERS 505
Caution : The appliance should be installed indoor.
Empty the water heater when it is not in use. Avoid
freezing and damaging the heater during winter.
To empty the water heater, see 7.2
5
6
7
3 4
= Insert the plastic expansive plug. Then using spanner or other fitting tools to install "L"
screw until the dimension between the head of "L" screw and wall is 7~ 10 mm. The head of
"L" screw must be up. (see Fig 5).
Minimum required distance
from wall - 1'6"
Wall

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Insert the plastic expansive plug Then using spanner or other fitting tools to install L screw until the dimension between the head of L screw and wall is 7 10 mm The head of L screw must be up see Fig 5 3 Genera warnings Local directives may provide restrictions installation of electric water heater in bathrooms for To reduce heat loss the water heater should Merloni TermoSanitari shall not bear responsibility for any damage caused by incorrect installation if manual has not been followed correctly Installation must be carried out by qualified personnel In particular attention to the following items be installed in a place nearest to the point of use Plastering layer be kept empty for maintenance purpose You could use other kinds of expansive plugs and screws according to the structure of the wall But make sure that the depth of the expansive plug should be paid Electrical wiring must comply with requirements specified in corresponding paragraphs The safety valve supplied with the appliance must be in good condition without any damage it must not be tampered with and must not be replaced with other similar ones Installation must be carried out by qualified personnel The screws should be fastened properly in plastic expansive plugs Confirm the voltage of mains supply to be the same as that given in data on the rating plate Check grounding condition according to local directive The power supply socket for the water heater should have earth wiring and earthed properly Earth wire and neutral wire should be differentiated and identifiable Do not use any socket converter or extension cable to match the plug of the water heater Do not replace the plug of the heater with other plug Do not use portable or reel socket see Fig 3 and Fig 4 The power for electric water heater should be supplied independently do not share the power supply with other appliances The power supply socket for the heater should be arranged in a dry place away from water splash Load bearing part of the wail At least a space of 50 cm around the heater should in load bearing part of the wall should not be less than 40 mm see Fig 5 Lean the water heater on the wall and move downwards slowly till the heater catch couples with the L screws on the wall Pull the heater downwards to make sure that the appliance has been fastened reliably see Fig 6 Model Installation distance L mm 35 LITERS 366 5 50 LITERS 505 6 Minimum required distance from wall 1 6 Caution The appliance should be installed indoor Empty the water heater when it is not in use Avoid freezing and damaging the heater during winter The power cable is special for this electric water heater If damaged it must be replaced with the specified power cable by qualified personnel To disconnect the heater from the supply please use a bipolar switch with contact separation of at least 3mm To empty the water heater see 7 2 4 2 Water connection Screw the safety valve A supplied with the water heater on to the water inlet of the appliance Installation instruction marked in blue see Fig 7 Connect the main cold water pipe B on the 4 1 How to install the water heater on the wall lower end of the safety valve The water heater should be installed at least 1 2 f 475mm from the left hand side to facilitate easy removal of the inspection cover Confirm that the wall can support double the weight of the heater filled up with water Drill two pre holes with the diameter a little smaller than that of the plastic expansive plug using a hammer drill Then expand the holes using normal drill until the diameter of the holes is equal to the diameter of plastic expansive plug Connect the drain pipe C on the drain end of the safety valve Another end of the drain pipe should be open to the atmosphere The drain pipe should be kept downwards on the tilt in any case it will not directly face the user 3 4 1 Wall

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