Nova Florida VELA COMPACT - 1.3 Boiler Shut-down

8
1
.
3
. B
o
il
e
r
s
h
u
t-
do
wn
W
hen any mal
f
unction occurs, the boiler automatically shuts down.
R
efer to no. 1 chart (on pa
g
e 6) in order to detect the boiler operation status.
I
n order to identi
f
y plausible mal
f
unction origin, see no.
6
paragrap
h
“T
rou
bl
es
h
oot
i
ng
”
at the end o
f
the manual.
I
n relation to the type o
f
mal
f
unction, proceed as described herea
f
ter.
1
.
3
.1.
B
urner s
h
ut-
d
own
W
hen the burner shuts down
,
no.
2
LED turns on
(
red
)
. Should this ha
pp
en
p
roceed as follows:
- Check the gas stopcock to be open, and gas mains have gas in them e.g. by lighting a kitchen range burner;
-
O
nce gas presence is veried, reset the burner by turning no. 5 selector
(
pic. 1
)
to its reset position : i
f
the equipment does not
r
estart and shuts down a
g
ain, after performin
g
two attempts, contact an authorized Service Centre or qualied personnel for service.
S
hould the burner shut down frequently, signaling a recurrent operation malfunction contact an authorized
S
ervice
C
entre or qualied
p
ersonnel
f
or service.
1
.3.2.
S
hut-down due to overheating
W
hen central heatin
g
ow overheats, no. 1 LED (pic. 1) ashes (red). Should that happen, contact an authorized Service Centre or
q
uali

ed personnel to carry out maintenance work.
1
.3.3. Shut-down due to low water
p
ressure
I
n case of shutdown due to water pressure switch intervention, no. 1 LED ashes
(
yellow
)
.
F
ill up the boiler by openin
g
the loadin
g
tap A (pic.
2
)
, located in the lower area of the boiler, next to the h
y
draulic connections.
W
ater pressure must
b
e 1-1.
3
b
ars w
hil
e t
h
e
b
o
il
er
i
s co
ld
.
I
n order to restore water
p
ressure,
p
roceed as follows:
-
Turn the lling tap counter-clockwise to let water into the boiler and keep it open until no. 5 pressure gauge
(
pic. 1
)
shows that a
p
ressure o
f
1-1,
3
b
ars
i
s reac
h
e
d
; now c
l
ose t
h
e tap
b
y rotat
i
ng
i
t c
l
oc
k
w
i
se.
S
hould boiler shuts down frequently occur it means there is boiler malfunction in progress.
C
ontact qualied personnel or an authori
-
z
ed
S
ervice
C
entre for maintenance.
O
nce the system is filled, close the tap properly. If the tap is not properly closed, as pressure increases,
b
o
il
er sa
f
ety va
l
ve may open an
d
water
fl
ow out.
1
.3.4
S
hut-down due to flue system incorrect draught
S
hould the boiler shut down due to an anomaly in the air intake and
/
or ue gas discharge system, no. 1 LED
(
pic. 1
)
turns on
(
yellow
)
.
S
hould that occur, contact an authorized
S
ervice
C
entre or qualied personnel for maintenance.
1
.3.5
S
hut-down due to malfunction of temperature probes
S
hould the burner shut down due to a malfunction of the tem
p
erature
p
robes, no. 1 LED
(p
ic. 1
)
ashes as follows:
-
yellow
/
red for
C
H probe;
-
red/
g
reen for DHW probe.
W
hen that happens, contact an authorized
S
ervice
C
entre or qualied personnel to carry out maintenance.
Pic. 2 - Loading tap