Immergas VICTRIX 50 - Safety Device Lockouts and Faults

29 - IE
INSTALLERUSER
MAINTENANCE TECHNICIAN
- Noise due to air in the system. Check opening
of the hood of the special air vent valve (Fig.
1-25). Make sure the system pressure and
expansion vessel factory-set pressure values
are within the calculated limits.
N.B.: in the case of maintenance interventions
on the boiler that lead to the closure of one or
both system cut-o cocks (part. 34 g. 1-30), the
boiler must be o.
3.6 CONVERTING THE BOILER TO
OTHER TYPES OF GAS.
If the boiler has to be converted to a dierent gas
type to that specied on the data plate, request
the relative conversion kit for quick and easy
conversion.
Boiler conversion must be carried out by a
qualied technician (e.g. Immergas Aer-Sales
Technical Assistance Service).
To convert to another type of gas the following
operations are required:
- remove the voltage from the appliance;
- replace the nozzle located between the gas pipe
and gas/air mixing sleeve (part. 6 g. 1-25);
- apply voltage to the appliance;
- regulate the maximum heat output by varying
the number of fan revs. (parameter No. 22 “Max
number of fan revs in CH mode”) according to
par. 3.21;
- regulate the minimum heat output by varying
the number of fan revs. (parameter No. 26 “Min
number of fan revs in CH mode”) according to
par. 3.21;
- check the value of CO
2
in the flue gas at
maximum heat output with respect to the table
in par. 3.22;
- check the value of CO
2
in the flue gas at
minimum heat output with respect to the table
in par. 3.22;
- seal the gas ow rate regulation devices (if
settings are modied);
- aer completing conversion, apply the sticker,
present in the conversion kit, near the data-
plate. Using an indelible marker pen, cancel
the data relative to the old type of gas.
ese adjustments must be made with reference
to the type of gas used.
3.7 CHECKS FOLLOWING
CONVERSION TO ANOTHER TYPE
OF GAS.
After making sure that transformation was
carried out with a nozzle of suitable diameter for
the type of gas used and the calibration has been
performed at the correct n°. of revs, check that:
- the burner ame is not too high and that it is
stable (does not detach from burner);
- there are no leaks from the gas circuit.
N.B.: all boiler adjustment operations must
be carried out by a qualied technician (e.g.
Immergas Assistance Service).
3.8 POSSIBLE ADJUSTMENTS
Check the nominal heat output.
e boiler heat output is correlated to the length
of the air intake and ue exhaust pipes. is
decreases slightly with the increase of pipe length.
If installed in set and with the ue kit, aer 5
minutes of burner functioning and when the
intake air and exhaust gas temperatures have
stabilised, it is necessary to update the number
of fan revs. in CH mode according to the table
at the end of the page:
3.9 ADJUSTMENT OF THE AIRGAS
RATIO.
Calibration of the maximum CO
2
.
Switch the boiler on and take it to chimney sweep
mode by pressing the “MODE” and "+" keys
simultaneously for two seconds. is way the
boiler is forced to maximum and “H” appears
on the display followed by a 2-gure number.
To have an exact value of CO
2
the technician
must insert the sampling probe to the bottom
of the sample point, then check that the CO
2
value is that specied in the table in par. 3.22,
otherwise, adjust the screw (12 g. 3-4) (gas ow
rate regulator).
To increase the CO
2
value, turn the adjustment
screw (12) in an anti-clockwise direction and vice
versa to decrease it.
At every adjustment variation on the screw (12)
it is necessary to wait for the boiler to stabilise
itself at the value set (about 30 sec.).
Calibration of the minimum CO
2
.
On completion of regulation of the maximum
CO
2
, switch the boiler on and allow it to
function at minimum heat capacity by pressing
the “MODE” and “-” keys at the same time
for two seconds. is way the boiler is forced
to minimum and “L” appears on the display
followed by a two digit number. To have an
exact value of CO
2
the technician must insert
the sampling probe to the bottom of the sample
G20 G30 G31
Single boiler
Max. N°. revs 5180 Max. N°. revs 4600 Max. N°. revs 5200
Min. N°. revs 1280 Min. N°. revs 1150 Min. N°. revs 1250
Exhaust collector kit with ue
adjusting devices
Max. N°. revs 5180 Max. N°. revs 4600 Max. N°. revs 5200
Min. N°. revs 1580 Min. N°. revs 1450 Min. N°. revs 1550
point, then check that the CO
2
value is that
specied in the table in par. 3.22, on the contrary,
regulate the screws (3 g. 3-4) (O-Set regulator).
To increase the CO
2
value, turn the adjustment
screw (3) in a clockwise direction and vice versa
to decrease it.
3.10 CHECK COMBUSTION
PARAMETERS.
To regulate the minimum and maximum heat
outputs take the boiler into the chimney sweep
phase by pressing the “MODE” and “+” keys at
the same time for a few seconds. en check the
maximum fan speed (with burner on) in order
to obtain the value given in the table (par. 3.21),
if the parameters are modied, see the successive
chapters.
3.11 REGULATION OF THE CH
NOMINAL OUTPUT.
e“Victrix 50” boiler is produced with heat
output on CH calibrated at maximum. It is
recommended not to touch this setting again.
Whenever it is necessary to reduce the heat
output, the value of parameter No. 22 “Max
number of fan revs. in CH mode” must be
modied, aer having inserted the technician's
code, as described in par. 3.3.
To check the regulated heat output value,
compare the no. of fan revs with that in the table
(par. 3.21).
3.12 REGULATION OF THE CH
MINIMUM OUTPUT.
Whenever it is necessary to modify the CH
minimum heat output, the value of parameter
No. 26 “Min number of fan revs. in CH mode”
must be modified, after having inserted the
technician's code, as described in par. 3.3.
To check the regulated heat output value,
compare the no. of fan revs with that in the table
(par. 3.21).
3.13 REGULATION OF THE HEAT
OUTPUT IN DHW MODE.
Whenever it is necessary to modify DHW the
heat output, the value of parameter No. 24 “Max
number of fan revs. in DHW mode” must be
modied, aer having inserted the technician's
code, as described in par. 3.3.
Adjust the no. of fan revs according to the table
(par. 3.21).