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Instructions for the installer
3.29 INITIAL LIGHTING
PRELIMIARY CHECKS
The first ignition must be carried out by a
qualified technician. Failure to do so could
cause injury to persons, animals or damage
to property. UNICAL shall not be held liable
for any injury and/or damage.
Before lighting the boiler check that:
- the boiler installation has been carried out in accordance with
the specific Standards.
- the combustion air inlet and the discharge of the products
of combustion occur in the correct way in accordance to the
specific Standards in force;
- the gas supply system is correctly dimensioned for the boiler’s
output;
- the boiler’s electrical supply is 230 V - 50 Hz;
- the system has been filled with water (pressure registered
on the gauge 0,8/1 bar with pump not running);
- any of the system’s on-off valves are open;
- the mains supply gas corresponds to the one which the boiler
has been calibrated for: otherwise convert the boiler to use
the available gas (refer to section: “GAS CONVERSION”);
this operation must be carried out by a qualified technician
in compliance to the regulations in force;
- the gas supply cock is open;
- there are no gas leaks;
- the external mains supply switch is on;
- the boiler system’s safety valve is not blocked and that it is
connected to the sewage system;
- the condensate drain siphon has been filled with water and
that it is connected to the sewage system;
DANGER!
Before firing the appliance fill up the siphon
through the filling hole and check the correct
drainage of the condensate.
If the appliance is used with the condensate
drain siphon empty this could cause poiso-
ning caused by the leakage of the flue gasses.
- there are no water leaks;
- all the necessary ventilation conditions and minimum clea-
rance distances are guaranteed for subsequent servicing in
case the boiler is sited in a cupboard compartment.
Information to be passed on to the user
The user of the appliance must be instructed on the use and
operation of his boiler and in particular detail:
- Hand over to the end user the booklet: “USER’S IN-
STRUCTIONS GUIDE”, as well as all the other literature
relative to the appliance and placed in the envelope contained
in the packaging. The user of the appliance must retain
this literature for any future reference.
- Inform The user of the importance of the air vents and of
the flue outlet system, stressing the fact that absolutely no
alteration can be made.
- Inform the user regarding the control of the system’s water
pressure and how to restore it to the correct value.
- Explain and demonstrate to The user the correct function and
adjustment of the temperature, thermostats and radiators for
the economic use of the system.
- Remind the user that in order to comply to the regulations in
force the boiler has to be inspected and serviced regularly
as indicated by the manufacturer.
- 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.
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