Instruction manual

39
Instructions for the installer
The first ignition must be carried out by a qua-
lified technician. Failure to do so could cause
injury to persons, animals or damage to pro-
perty. 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 and regulations in force;
" the gas supply system is correctly dimensioned for the
boiler's output and is fitted with all the safety and control
devices prescribed by the regulations in force;
" the boiler's electrical supply is 230 V - 50 Hz;
" the system has been filled with water (pressure registe-
red on the gauge 1 bar with pump not running);
" all of the system's on-off valves are open;
" the mains gas supply corresponds to the one which the
boiler has been calibrated for: otherwise convert the boi-
ler to use the available gas; this operation must be carried
out by a qualified technician in compliance to the regula-
tions in force;
" the gas supply cock is open;
" there are no gas leaks;
" the external mains supply switch is in the on position;
" the boiler system's safety valve is not blocked and that it is
connected to the sewage system;
" there are no water leaks;
" all the necessary ventilation conditions and minimum cle-
arance distances are guaranteed for subsequent servi-
cing.
LIGHTING AND SHUTTING DOWN PROCEDURES
For lighting and shutting down the boiler refer to the "IN-
STRUCTIONS GUIDE FOR THE PERSON IN CHARGE OF
THE APPLIANCE"
Information to be passed on to the person in charge of the
appliance
The person in charge of the appliance must be instructed on
the use and operation of the boiler and in particular detail:
- Hand over to the person in charge of the appliance the
booklet: "INSTRUCTIONS GUIDE FOR THE PERSON IN
CHARGE OF THE APPLIANCE", as well as all the other
literature relative to the appliance, and placed in the en-
velope contained in the packaging,. The person in charge
of the appliance must retain this literature for any future
reference.
- Inform the person in charge of the appliance of the impor-
tance of the air vents and of the flue outlet system, stres-
sing the fact that absolutely no modification can be made.
- Inform the person in charge of the appliance 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 ra-
diators for the economic use of the system.
- Remind the person in charge of the appliance that in order
to comply to the regulations in force the boiler has to be
inspected and serviced annually and the measurement of
the combustion efficiency should be carried out as requi-
red by the national regulations in force.
- 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.
The PKX boilers are forced water circulation system boilers:
therefore it is necessary to ensure that the water circulates
when the burner is firing.
You must avoid the burner firing without the system pump
being activated; otherwise the safety thermostat could inter-
vene.
The room ambient temperature will be adjusted via the mixing
valve managed by the heating controller.
When the burner fires or turns off you could hear a slight noise
caused by the structure This should not give cause for con-
cern because these thermal expansions have been foreseen
in the developing phase.
3.26 - INITIAL LIGHTING
PRELIMINARY CHECKS