Family Aqua Condens 3.5 BIS
18
ADJUSTING THE MAXIMUM OUTPUT (P. HH)
- Switch off the boiler.
- Select parameter HH and wait until the boiler ignites.
- Check the maximum CO
2
value shown on the flue gas analyser
(see paragraph "Combustion check") corresponds to the values
shown in table 3.
If the CO
2
complies with the values in the table, move on to the next
parameter (LL - adjustment of the minimum). If it is different, modify
the value by using a screwdriver to turn the maximum output adjust-
ment screw (clockwise to reduce the value) until the value shown in
table 3 is indicated.
TABLE 3
Max. CO
2
GAS
METHANE
(G20)
LIQUID GAS
PROPANE
(G31)
3.5 BIS
9,0
10,0
%
ADJUSTING THE MINIMUM OUTPUT (P. LL)
- Select parameter LL (with the boiler OFF) and wait until the boiler
ignites.
- Check the minimum CO
2
value shown on the flue gas analyser
(see "Combustion check") corresponds to the values shown in ta-
ble 4.
If the CO
2
is different from the values shown in the table, turn the
minimum output adjustment screw (clockwise to increase the value)
with a screwdriver until the value shown in table 4 is indicated.
TABLE 4
Min. CO
2
GAS
METHANE
(G20)
LIQUID GAS
PROPANE
(G31)
3.5 BIS
9,5
10,0
%
POSSIBILITY OF ADJUSTING THE HEATING MAXIMUM (P. 23) -
RANGE RATED
- Select parameter 23.
- Press the ENTER key to be able to modify the parameter value
- Turn the encoder to modify the maximum fan speed.
- Confirm the new value by pressing ENTER.
The newly set value must be indicated on the adhesive label (sup-
plied) and will become the reference for subsequent checks and ad-
justments, including combustion checks.
POSSIBILITY OF ADJUSTING THE HEATING MINIMUM (P. 24)
- Select parameter 24.
- Press the ENTER key to be able to modify the parameter value
- Turn the encoder to modify the minimum fan speed.
- Confirm the new value by pressing ENTER.
Exit the CALIBRATION & SERVICE functions by pressing the ES-
CAPE key.
The boiler switches off and ENERGY FOR LIFE is displayed.
Disconnect the pressure gauge and re-tighten the pressure test point
screw.
To restore operation, press the
key.
After each intervention on the adjustment element of the gas
valve, seal it with sealing varnish.
A power failure during the adjustment phase causes the non-in-
troduction of the modified parameters in the memory, which is
indicated by fault 54 on start-up. Reprogram all the parameters
you want to change.
The boiler is supplied with the adjustments shown in the table. De-
pending on plant engineering requirements or regional flue gas emis-
sion limits it is, however, possible to modify this value, referring to the
graphs below.
Thermal output curve - emissions (MTN)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
Heat output (kW)
CO Emission s.a. (p.p.m.) G20
