84
IT
ES
PT
GB
RUS
AIR CALIBRATION
Electrically disconnect the hea-
ting probe (SM) and connect
the wires to another similar
free probe. Turn the heating
potentiometer knob to the
maximum setting, remove the
knob and connect the differen-
tial manometer (+ sign) to the
air pressure intake [7 - Drawing
1].
Sequence of operations:
1)
Turn the heating power trim-
mer anticlockwise to the
bottom of the scale B [6 -
Drawing 2].
2)
Calibrate the air signal using
the minimum fan power
adjustment trimmer A [4 -
Drawing 2] to obtain the
figure in mmH
2
O shown in
the table:
3)
Turn on a hot water tap to
bring the boiler up to maxi-
mum hot water power.
4)
Calibrate the air signal using
the maximum fan power
adjustment trimmer D [2 -
Drawing 2] to obtain the
figure in mmH
2
O shown in
the table:
GAS CALIBRATION
Connect the differential mano-
meter (+ sign) with decimal
scale in mm or Pascal to the
gas intake [6 - Drawing 3].
Sequence of operations:
1)
Turn the heating power adju-
stment trimmer anticlockwi-
se to the bottom of the
scale B [6 - Drawing 4].
2)
Fully open the gas capacity
step [7 - Drawing 5]
3)
Calibrate
gas
pressure
using the OFF-SET adjust-
ment screw [8 - Drawing 5]
to obtain the figure in
mmH
2
O shown in the table:
4)
Close the gas capacity step
[7 - Drawing 5] to obtain the
figure in mmH
2
O shown in
the table:
After completion of calibration operations, check CO
2
values using a combustion analyser. If discrepancies are found with respect to the
values appearing in the tables, correct as necessary:
– Use the OFFSET screw (
8 – Drawing 5
) to correct CO
2
at “MIN” output.
– Use the capacity step to correct CO
2
at “MAX” output (
7 – Drawing 5
).
25 BF
30 BF
G20
13,0
13,0
G31
13,0
13,0
“Format Dewy.zip 25 BF”
“Format Dewy.zip 30 BF”
CO
2
(Methane)
CO
2
(Propane)
CO
2
(Methane)
CO
2
(Propane)
“MIN” power
9,0 ±0,3
9,9 ±0,2
9,0 ±0,3
9,9 ±0,2
“MAX” power
9,0 ±0,3
9,9 ±0,2
9,0 ±0,3
9,9 ±0,2
GAS CONVERSION
– Close the gas cock.
– Replace the injector (pos. 30)
and the relevant gasket (pos.
45).
– Cut the specified resistance on
the fan control board.
– Test for soundness all the gas
connections using soapy water
or appropriate products.
DO NOT USE NAKED FLAMES.
– Stick onto the casing panel the
plate showing the relevant fee-
ding gas.
– Proceed with air and gas cali-
bration as described below.
32
28
106
16
14
28
34
35
64
6
45
57
30
29
Drawing 1
Drawing 3
Adjustment and control operations must be performed with the heater in operation while heating is underway
6
2
4
Drawing 2
6
2
4
Drawing 4
7
8
Drawing 5
25 BF
30 BF
G20
93,0
93,0
G31
93,0
93,0
25 BF
30 BF
G20
12,0
12,0
G31
13,0
13,0
25 BF
30 BF
G20
10,5
10,5
G31
12,5
12,5
4.4
BOILER CALIBRATION
Summary of Contents for FORMAT DEWY.zip 25 BF
Page 1: ...Format Dewy zip IT ES PT GB CERTIFICAZIONE DEL SISTEMA DI QUALITA AZIENDALE RUS ...
Page 113: ......
Page 114: ......
Page 115: ......
