29
1
IMPORTANT
RECOMMENDATIONS
1.1 WARNINGS.
This appliance may only be used by adults Users
whose physical, sensory or mental abilities are
not impaired.
Before using this appliance, it is in any case
required to read this instructions booklet (User
section) and/or the operating instructions by
skilled technical personnel.
Use by incompetent adult personnel let alone by
children is forbidden, both due to safety issues
and to issues of correct appliance operation and
warranty.
This appliance has been designed to serve one
residential housing unit only (and similar)
subject to assessment of the energy requirement
for domestic hot water; it is not a heating system
pursuant to the legislation in force.
1.2 INSTALLATION.
Warning:
due to its weight (from 90 to 110 kg
depending on the version), this appliance must
be handled with care to avoid injury or damage
to persons, property and the appliance itself.
Installation must therefore be performed taking
into account the following instructions:
- Install the appliance in a frost-free room. The
warranty does not cover any appliance break-
down caused by excessive pressure due to the
safety valve blocking because of ice.
- Ensure the floor on which the appliance is to be
installed is suitable to withstand the appliance's
own weight and that of the water content (270
litres approximately). It is recommended to
perform a structural assessment by the designer
of the dwelling.
- Suitably aerate the installation room in the
event the appliance is to be installed in a room
and/or in a position where the ambient tem-
perature is always higher than 35°C.
- Position the appliance in an accessible area
and at such a distance from the wall to permit
correct maintenance / accessibility (Parag. 3.1).
- Refer to the installation diagrams (Parag. 3.1).
- It is recommended to provide suitable shut-off
valves on the plumbing coupling to allow for
any routine and extraordinary maintenance
operations which might require emptying /
filling the water heater.
- In order to prevent any stability and safety
issues, it is obligatory to secure the water heater
to the floor, on a flat surface, using the fastening
anchors supplied.
1.3 PLUMBING CONNECTION.
It is obligatory to install a safety device, set to be
triggered at 7 bar - 0.7 MPa (not supplied with the
water heater), size 3/4”, compliant with standard
EN1487 as amended and added, and in any case
compliant with local regulations in force, to be
fitted to the cold water inlet of the water heater.
The safety device must be protected from ice.
The safety unit must be fitted with a discharge
device (overpressure) to be operated regularly
to remove any limestone deposits.
It must also be checked regularly to ensure it is
not blocked.
The pressure reducer (not standard supplied) is
required when water mains pressure exceeds 5
bar (0.5 MPa) and must be placed on the main
water supply line.
The safety unit must also be connected to a drain
pipe kept in the open air, in a frost-free environ-
ment, with a permanent downward gradient, to
remove any expansion water from the heating
process, or drainage water from the water-heater.
The maximum operating pressure of the heat ex-
changer circuit must not exceed 6 bar - 0.6 Mpa,
and its max. temperature must not exceed 100°C.
To perform any discharge operations of the
water-heater, strictly adhere to the following
sequence:
- Disconnect the appliance from the electrical
power supply.
- Disconnect the appliance from the mains water
supply (cold water).
- Open the hot water cock.
- Actuate the discharge device of the safety unit.
1.4 WIRING.
Before removing the cover of the water-heater,
always ensure the power is disconnected, to
prevent any risk of injury due to electric shocks.
The following must be provided upstream of the
electrical installation:
- A thermal magnetic breaker or 16A multi-pole
fuse with contacts compliant with regulations
in force.
- A 30 mA differential circuit breaker.
Should the power supply cable be found to be
damaged for any reason, it must be replaced by
the After-sale Support, or in any case by skilled
and qualified personnel.
The water-heater must be connected to earth
according to the methods set out by the regu-
lations in force.
A special terminal, marked (
), is provided
for the purpose.
This manual is supplied jointly with the water
heater; in the event of loss it may also be obtained
from the Authorised area Support service or be
downloaded from the suitable website.
