15
Instruction for the installer
3.11 - INITIAL LIGHTING
Preliminary checks
Before the initial lighting of the water heater it is suggested to
check:
-
the installation is in conformity with the relevant applica-
ble standards;
-
the coaxial duct for the air intake and smoke evacuation is
properly fitted;
-
gas feeding pipe properly sized for the flow rate neces-
sary to the appliance;
-
the electrical supply is 230V - 50Hz;
-
the feeding gas cock is turned on;
-
the soundness of the gas supply;
-
the external main switch is turned on; '
-
the outlet of the safety valve “D” is connected to the swage.
-
there are no water leaks;
-
the ventilation conditions and the minimum clearances,
for the completion of the service operation, when the ap-
pliance is fitted in between the cabinets or in a capboard,
are guaranteed.
Informations to be passed on to the user
The user must be instructed on the use and operation of
his water heater and in particular:
•
- Hand over to the end user this manual, as well as all the
other literature relative to the appliance and placed in the
envelope contained in the packaging.
The user must retain this literature for any future
reference.
•
Remind the user that in order to comply to the
regulations in force the water heater has to be inspected
and serviced regularly as indicated by the manufacturer.
•
Explain and demonstrate to the user the correct tempera-
ture adjustment for the economic use of the appliance.
•
Remember, that in compliance with regulation, control and
maintenance must be performed in accordance with the
requirements and the frequency specified by the manu-
facturer and with the frequency required by the directives
of the law.
•
If the appliance is sold or transferred to another owner or
if the present user moves home and leaves the appliance
installed, ensure yourself that the manual always follows
the appliance so that it can be consulted by the new
owner and/or installer.
3.10 - ELECTRICAL CONNECTIONS
General warnings!
The appliance’s electrical safety is guaranteed only when
the same appliance has been correctly earthed in
compliance with the regulations in force. The gas and water
feeding pipes cannot be used as ground plates.
Ensure that the above safety electrical requirements subsist;
in case of doubt, ask for a professionally qualified
technician to check the appliance’s electrical system.
UNICAL refuses responsibility for any damages arising from
failure to earth the boiler correctly.
It is necessary that a qualified technician verifies that the
electrical system is adequate to the appliance’s maximum
absorbed power, indicated on the data plate, verifying in
particular that the section of the system’s cables is suitable
to the appliance’s maximum absorbed power.
For the appliance’s general electrical supply the use of
adaptors, multiple sockets and/or extension cords is strictly
forbidden.
The use of any power supplied equipment implies the
observance of several fundamental rules, such as:
- Do not touch the appliance with any wet part of your body
and/or barefooted;
- Do not pull the supply cables;
- Do not expose the boiler to sunlight, rain, etc., unless it is
explicitly foreseen;
- Do not permit children or inexpert people to use the
appliance.
Connection to mains supply 230V
(Installation of a double pole switch)
The boiler is provided complete with a 1,5 m long, mains
supply cable, with a cross section area of 3x0,75 mm2.
A mains supply of 230 V – 50 Hz is required. The wiring to
the boiler must be in accordance with the current IEC
regulations.
DANGER!
The electrical connections must be carried
out only by a qualified engineer.
Before carrying out the connections or any
other operation on the electrical parts,
always switch off and disconnect the
electricity supply and ensure yourself that
it cannot be accidentally turned on.
Note: It is necessary to fit a double pole switch on the
electrical supply line, having a 3 mm contact separation in
both poles, in an easy accessible position so as to ensure
quick and safe servicing.
The replacement of the supply cable as to be carried out by
a qualified authorized UNICAL engineer, using only original
spare parts. The non-observance of the above could
compromise the appliance’s safety.
DANGER!
- Before removing the casing front panel
switch off the electrical supply.
