40
Instructions for the installer
C) COMPLETION OF THE BASIC ADJUSTMENTS
-
Check the C0
2
values at the minimum and maximum
outlet
-
If necessary make the required adjustments
To ensure correct operation the C0
2
values
have to be adjusted with extreme care
respecting the values indicated in the table.
-
Close the sampling test point in the flue inlet/outlet
terminal with the appropriate cap C.
MINIMUM OUTPUT
ADJUSTMENT
SCREW (
B
)
Tighten the maximum adjustment screw “A”
in a clockwise direction until you arrive to
the abutting end, than slacken for 7 turns.
Verify the boiler ignition; if the boiler goes
into lockout slacken the screw “A” again of
one turn, than retry the ignition. If the boiler
goes into lockout again, carry out the above
indicated operations until the boiler is
lighted.
At this point carry out the burner adjustment
as previously indicated.
-
If necessary correct the value by turning the adjustment
screw “B” in a CLOCKWISE direction to increase the value
and in an ANTICLOCKWISE direction in order to decrease
it.
Type of
Gas
7 (1,74)
11 (2,74)
7 (1,74)
11 (2,74)
0.038 (1,07)
0.015 (0,42)
0.038 (1,07)
0.015 (0,42)
0.173 (4,91)
0.067 (1,90)
0.156 (4,42)
0.060 (1,71)
A (Natural)
E (Propan HD)
A (Natural)
E (Propan HD)
m i n
(FL)
ALKON 50
9.5
10.8
9.5
10.8
92
93
82
83
24
24
24
24
0.22 (5,6)
0.22 (5,6)
0.22 (5,6)
0.22 (5,6)
9.5
10.8
9.5
10.8
Start
output %
IG
40
50
40
50
Check the C0
2
levels often, especially at low flow rate
INJECTORS – PRESSURES
CO
2
level
(%)
m i n
CO
2
level
(%)
max
Fan speed
Supply
p r e s s u r e
in wc (kPa)
Minimum gas
consumption
ft
3
/hr (m
3
/hr)
Ø Mixer
injectors
Øin (mm)
max
(FH)
Maximum gas
consumption
ft
3
/hr (m
3
/hr)
V max
fun
FU
10
10
10
10
ALKON 70
FOR HIGH ALTITUDE
Type of
Gas
7 (1,74)
11 (2,74)
7 (1,74)
11 (2,74)
0.055 (1,56)
0.021 (0,60)
0.055 (1,56)
0.021 (0,60)
0.224 (6.35)
0.087 (2,46)
0.156 (5,72)
0.060 (2,21)
A (Natural)
E (Propan HD)
A (Natural)
E (Propan HD)
m i n
(FL)
9.5
10.8
9.5
10.8
81
80
73
72
21
21
24
24
0.35 (9,0)
0.35 (9,0)
0.22 (5,6)
0.22 (5,6)
9.5
10.8
9.5
10.8
Start
output %
IG
50
50
50
50
CO
2
level
(%)
m i n
CO
2
level
(%)
max
Fan speed
Supply
p r e s s u r e
in wc (kPa)
Minimum gas
consumption
ft
3
/hr (m
3
/hr)
Ø Mixer
injectors
Øin (mm)
max
(FH)
Maximum gas
consumption
ft
3
/hr (m
3
/hr)
V max
fun
FU
12
12
12
12
FOR HIGH ALTITUDE
