29
– open the isolation and air bleeding valves in the highest
points of the system
– loosen the automatic bleed valve (3)
– open the isolation valves of the heating circuit (if present)
– open the filling valve (4)
– fill until the water overflows from the air bleeding valves
and shut off the valves again
– continue filling until the pressure reaches 1-1.2 bar as
shown on the pressure gauge (5)
– close the filling valve (4)
– check that there is no air in the system by bleeding all the
radiators and the circuit on the high points of the system
4
5
3
Fig. 32
N.B:
to completely remove all air from the system, it is recom-
mended that this operation is repeated a number of times.
– check the pressure on the pressure gauge (5) and if neces-
sary top up until the correct pressure reading appears
– close the automatic bleed valve (3)
– fill the siphon disconnecting it from the pipe or using (by
means of) the smoke take-off point.
Refit the front panel of the boiler hooking it on at the top, pu-
shing it forwards and securing it with the screw (1) which was
removed previously.
2.9.1 Setting boiler parameters
To go into the parameters menu:
– from the stand-by screen press the button
y
– select the operating mode WINTER
n
– press the buttons
r
and
t
(for approximately 5 seconds)
at the same time until
“PAR 01”
(parameter number) and the
value set (0-4) appears on the display
– press the button
t
to scroll up through the list of parame-
ters until reaching
PAR 17
.
NB.:
pressing and holding the buttons
r
or
t
lets the user
scroll quickly.
– on reaching
PAR 17
, press the button
<
and set the value to
“0”
. The modifications are stored automatically.
– press the button
t
and move to
PAR 18
.
– press the button
<
and set the value to
“2”
.
– press the button
t
and move to
PAR 40
.
– press the button
<
and set the value to
“--”
.
–
simultaneously
, press and hold the buttons
r
and
t
for a
few seconds until the initial screen appears.
m
IMPORTANT
When these operations have been completed IT IS MAN-
DATORY TO:
–
CHECK THE TIGHTNESS of all the joints.
–
COMPLETE THE INSULATION of the pipes and ALL the
devices involved (for example, PI pump, Vr valve, puf-
fer bleed device, etc) using the same insulation parts
as those present and the specific insulation tape.
It is advisable that the pipes already supplied as insula-
ted are completed.
