ALKON 50-70 INST apice a GB.pmd - Unical Lattner Condensing ...

- 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.
ALKON 50
ALKON 70
20
37
FL e FH = parameter
48,5-9,6
48,5-9,6
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.
INJECTORS – PRESSURES
Gas Type Supply
pressure
(mbar)
Nat. Gas (G20)
LPG (G31)
Heat
input
(kW)
Collector
Diaphragm
(Ø and n°
holes )
-
-
C02 levels
(%)
min
9,5
11,0
Gas Type Supply
pressure
Heat
input
Collector
Diaphragm
C02 levels
(mbar) (kW) (Ø and n° (%)
holes ) min
Nat. Gas (G20) 20 67,5-9,6 - 9,5
LPG (G31) 37 67,5-9,6 - 11,0
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.
Check the C0 2 levels often, especially at low flow rate
C02 levels
Fan
speed
Mixer Flue outlet
injectors diaphragm
Min.
gas
Max
gas
(%) % (Ø mm) (Ø mm) consumpconsump- max FL (min) FH (max)
tiontion 9,5 26 95 5,6 - 1,02 m³/h 5,13 m³/h
11,0 24 92 5,6 - 0,75 kg/h 3,76 kg/h
Start
output
%
C02 levels
Fan
speed
Mixer Flue outlet
injectors diaphragm
Min.
gas
Max
gas
Start
out-
(%) % (Ø mm) (Ø mm) consumpconsumpput max FL (min) FH (max)
tiontion %
9,5 20 99 9,0 - 1,02 m³/h 7,14 m³/h 50
11,0 20 90 9,0 - 0,75 kg/h 5,24 kg/h 60
40
45
51