Ferroli BLUEHELIX 25 K 50 Instructions D'utilisation page 9

BLUEHELIX 25K 50
Tabella. 8 - Maximum rate
NATURAL GAS ACCEPTABLE COMBUSTION RANGE
MAXIMUM RATE AFTER 10 MINUTES FROM COLD
Boiler Model
BLUEHELIX 25 K 50
Tabella. 9 - Minimum rate
NATURAL GAS ACCEPTABLE COMBUSTION RANGE
MINIMUM RATE AFTER 10 MINUTES FROM COLD
Boiler Model CO/CO
BLUEHELIX 25 K 50
If the combustion reading is greater than the acceptable value AND the integrity of
the complete flue system and combustion circuit seals have been verified and the
inlet gas pressure (and gas rate) have been verified, proceed as in cap. Setting the
Air/Gas Ratio valve.
Setting the Air/Gas Ratio valve
There are two adjustments possible on the air/gas ratio valve, the throttle setting at max-
imum rate and the offset setting at minimum rate. If either setting is adjusted the com-
bustion values must be rechecked at both rates.
At Maximum Rate:
1. Adjust the boiler to maximum rate in cap. 4.3 Test Mode.
2. Wait 10 minutes to allow the boiler to stabilize.
3. Now adjust the Throttle setting (fig. 29 - screw A) until the CO
SETTING LEVEL (see table 8), confirm that the CO/CO
wise to increase gas).
NOTE: ADJUST IN STEPS OF NO MORE THAN 1/8 OF A TURN AND WAIT 1 MINUTE
AFTER EACH ADJUSTMENT TO ALLOW THE SETTING TO STABILISE.
In the event that the CO setting level with an acceptable CO/CO
2
obtained please contact the helpline number.
Should you require any assistance during the set up procedure call our Technical
service helpline or should you require a service engineer to visit call our service centre
at numbers listed on last page of this manual.
At Minimum Rate:
1. Adjust the boiler to minimum output and allow the boiler to stabilize.
2. Now adjust the offset pressure setting (fig. 29 - screw B) until the CO
correct SETTING LEVEL (see table 9), confirm that the CO/CO
(clockwise to increase gas).
NOTE: ADJUST IN STEPS OF NO MORE THAN 1/8 OF A TURN AND WAIT 1 MINUTE
AFTER EACH ADJUSTMENT TO ALLOW THE SETTING TO STABILISE.
Re-check the Minimum Rate
Turn off the boiler and then turn it back on and put in Test Mode at maximum for 1minute.
Reduce to minimum and re-check the minimum rate output ensuring the CO2 setting lev-
el has remained unchanged and confirm that the CO/CO
In the event that the CO setting level with an acceptable CO/CO
2
obtained please contact the helpline number.
Should you require any assistance during the set up procedure call our Technical
service helpline or should you require a service engineer to visit call our service centre
at numbers listed on last page of this manual.
fig. 29 - Gas valve
A Throttle
B Offset adjustment
NOTE: In the event that an acceptable setting level cannot be obtained it will be neces-
sary to change the Air/Gas Ratio Valve.
CO/CO RATIO CO NG
2 2
8,7 ÷ 9,2
0.004
RATIO CO NG
2 2
8,2 ÷ 8,7
0.004
is at the correct
2
ratio is within limits (clock-
2
ratio cannot be
2
ratio is within limits
2
ratio is within limits.
2
ratio cannot be
2
B
A A
4.5 Troubleshooting
Diagnostics
In case of operation faults or problems, the display flashes and the fault identification
code appears.
CO LPG
2
There are faults that cause permanent shutdown (marked with the letter "A"): to restore
10 ÷ 10,5 operation just press the reset button (detail 6 -fig. 1) for 1 second or RESET on the op-
tional remote timer control if installed; if the boiler fails to start, it is necessary to firstly
eliminate the fault.
Faults marked with the letter "F" cause temporary shutdowns that are automatically reset
as soon as the value returns within the boiler's normal working range.
Table of faults
CO LPG
2
Table. 10 - List of faults
9,5 ÷ 10,0
Fault code
A01
A02
A03
A04
A05
is at the
2
A06
F07
F10
F11
F12
F13
F14
F15
F34
F35
F37
cod. 3541F704 - Rev. 00 - 12/2018
Fault Possible cause
No gas
Ignition/detection elec-
trode fault
No burner ignition
Faulty gas valve
Insufficient gas supply
pressure
Trap blocked
Electrode fault
Flame present signal
with burner off
Card fault
Heating sensor damaged
Overtemperature pro-
No water circulation in
tection activation
the system
Air in the system
Fume extraction duct Fault F07 generated 3
safety device activation times in the last 24 hours
Fault F15 generated for 1
Fan protection activated
hour (consecutive)
Ionisation electrode fault Check the position of the ionisation
Flame unstable
Gas valve Offset fault
No flame after ignition
stage (6 times in 4 min-
utes)
air/fume ducts obstructed
Trap blocked
The fume probe detects
High fume temperature an excessive tempera-
ture
Sensor damaged
Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
Return sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
DHW sensor fault Wiring shorted
Wiring disconnected
Probe damaged
Fume probe fault Wiring shorted
Wiring disconnected
Sensor damaged
Delivery sensor 2 fault Wiring shorted
Wiring disconnected
No 230V power supply
Tachometric signal inter-
Fan fault
rupted
Fan damaged
Supply voltage under
Electric mains trouble
170V
Faulty mains frequency Electric mains trouble
Pressure too low
Incorrect system water
Water pressure switch
pressure
damaged or not con-
nected
Cure
Check the regular gas flow to the
boiler and that the air has been elimi-
nated from the pipes
Check the wiring of the electrode and
that it is correctly positioned and free
of any deposits
Check the gas valve and replace it if
necessary
Check the gas supply pressure
Check the trap and clean it if neces-
sary
Check the ionisation electrode wiring
Check the card
Check the correct positioning and
operation of the heating sensor
Check the circulating pump
Vent the system
See fault F07
See fault F15
electrode and replace it if necessary
Check the burner
Check the Offset adjustment at mini-
mum power
Remove the obstruction from the flue,
fume extraction ducts and air inlet
and terminals
Check the trap and clean it if neces-
sary
Check the exchanger
Check the wiring or replace the sen-
sor
Check the wiring or replace the sen-
sor
Check the wiring or replace the sen-
sor
Check the wiring or replace the fume
probe
Check the wiring or replace the sen-
sor
Check the 8-pin connector wiring
Check the 8-pin connector wiring
Check the fan
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
EN 9