Nova Florida VELA COMPACT - B) Minimum Heat Output Adjustment; C) Final Settings; 4. Testing the Boiler; 4.1 Preliminary Checks

3
0
B)
Minimum heat out
p
ut ad
j
ustment
-
Disconnect electric wiring from D modulation coil
(
pic.
2
0)
;
-
turn t
h
e
b
urner on an
d
c
h
ec
k
m
i
n
i
mum pressure va
l
ue accor
di
ng to no.
2
an
d
no.
3
c
h
arts on page 1
4
;
-
in order to adjust pressure, hold nut B still b
y
means of a 100 mm tool, and turn plastic screw C CLOCKWISE to increase and
C
OUNTER-CLOCKWISE to decrease
g
as pressure;
-
re-connect electric wirin
g
to modulation coil.
C)
F
i
na
l
sett
i
ngs
-
Turn the boiler on and check its correct o
p
eration;
-
check a
g
ain for correct minimum and maximum
g
as valve pressure of
g
as valve;
-
a
dj
ust as necessary;
-
i
nsta
ll
protect
i
ve p
l
ast
i
c cap
A
;
-
close
g
as pressure checks;
-
check for
g
as leaks.
4
.
T
ES
TIN
G
THE
B
O
ILER
4
.1
P
re
li
m
i
nary c
h
ec
k
s
B
efore testin
g
the boiler, it is recommended to carry out the followin
g
checks:
-

ue gas evacuation ducts and terminal are implemented according to instruction:
wh
en t
h
e
b
o
il
er
i
s runn
i
ng
p
ro
d
ucts generate
d
b
y com
b
ust
i
on are not to
l
ea
k
f
rom gas
k
ets;
-
power mains suppl
y
to boiler is
23
0
V – 50 Hz
;
-
the system is correctly loaded (water pressure on
g
au
g
e 1 / 1,
3
bars
)
;
-
all stopcocks in the system pipin
g
are open;
-
the gas type supplied to the boiler is in compliance with boiler speci

cations In contrast, modi
f
y the boiler
f
or the gas type available
(
see no.
3
.
6 section “ADAPTATI
O
N T
O
O
THER
G
A
S
TYPE
S
AND BURNER ADJU
S
TMENT”
)
;
-
the
g
as supply stopcock is open;
-
no
g
as leaks are detected;
-
t
h
e power sw
i
tc
h
, externa
l
to t
h
e
b
o
il
er,
i
s on;
-
t
h
e
b
o
il
er
3
bar sa
f
ety valve is not blocked;
-
the boiler
p
um
p
is not blocked.
S
hould the boiler not be installed in com
p
liance with current laws and standards, notif
y
the s
y
stem su
p
ervisor
a
n
d
d
o not test t
h
e
b
o
il
er.
4.2.
S
witchin
g
on and switchin
g
off
F
or boiler starting up and switching o
ff
procedure
f
ollow the “Instructions
f
or the User”.