1.1 BOILER IGNITION (fig. 1)
Open the gas valve, lower the control panel
cover and activate the boiler by rotating the
selector knob to the summer position ( ).
The lighting-up of the green led ( ) will
indicate that the apparatus is switched-on
and ready.
–
With the rotary switch in the summer
position ( ) the boiler will start-up
upon demand for domestic hot water,
and run at full power to reach the selec-
ted temperature.
The gas feeding pres-
sure will then automatically vary to ensu-
re that the required temperature is
kept constant.
– With the rotary switch in the winter
position ( ) once the boiler has rea-
ched the value set on the heating poten-
tiometer, it will start to modulate in auto-
matically in order to supply the required
power output to the system. The opera-
tion of the boiler will be stopped through
the intervention of the thermostat or
“Logica Remote Control”.
1.2 TEMPERATURES ADJUSTMENT
(fig. 2)
– The D.H.W. temperature can be adju-
sted by turning the knob of the D.H.W.
potentiometer ( ).
When there is a demand for hot water
the yellow led ( ) lights-up.
When there is no request for heating or
D.H.W. production (the leds and
are off), the tank unit maintenance tem-
perature will appear on the red led scale
35÷80°C (95÷176°F).
–
The C.H. temperature can be adjusted
by turning the knob of the C.H. potentio-
meter
( ).
The set temperature is indi-
cated on the red led scale from
35÷80°C (95÷176°F) and the yellow
heating led lights up at the same time
().
If the temperature of the C.H.
return water is lower than around 55°C
(131°F), condensation of the combustion
by-products is obtained, further increa-
sing the efficency of thew thermal
exchange.
1.3 TURNING THE BOILER OFF
(fig. 1)
To turn the boiler off place the selector
knob on the OFF position. If the boiler is
not going to be used for a lengthy
period it is advised to turn off the elec-
tricity supply, close the gas valve, and if
the temperatures foreseen are low,
empty the boiler and the hydraulic
system to avoid breakage in the tubes
due to the freezing of the water.
1.4 GAS CONVERSION
Should it be necessary to convert the
appliance to a different gas from the one
for which the boiler has been equipped,
approach the technical staff.
1.5 CLEANING
AND MAINTENANCE
Preventive maintenance and checking of
the efficient operation of the equipment
and safety devices must be carried out
exclusively by the authorized technical
staff.
1.5.1 Flue gas and burner
maintenance
Flue gas passageways should be
checked and cleaning every six
months.
The burner should be checked and
cleaning every six months. Authorized
technical staff inspect the burner
and if necessary clean using a soft
brush and a vacuum cleaner, taking
care not to dameage the front isula-
tion.
Check the ignition /ionisation electro-
de, check the ignition spark gap (4
mm +/- 0.5 mm) (0.16 in. +/- 0.02
in.). Check the ionisation electrode,
check the distance from the burner
(18.7 mm +/- 1 mm) (0.74 in. +/-
0.04 in). Before reassembly inspect all
seals and replace as required.
1.5.2 Syphened drip maintenance
Preventive maintenance and checking
of efficient operation of equipment and
safety devices must be carried out
exclusively by authorized technical per-
sonnel.
During maintenance operations the
authorised technician must check
that the syphened drip is full of water
(this check is of importance particularly
when the generator has been out of
use for a long period of time).
Filling is done via the special opening (fig.
1/a).
Condensate collection and disposal
system should be checked and reasiling
every six months.
It’s necessary to proceed this periodic
control, because the condensate is
aggressive on the metal components in
the smoke path.
4
ENG
FR
1 LIGHTING AND OPERATION
Fig. 1/a
