Bentone STG 146 Manuel utilisateur
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178 008 26-2 2016-02-01
Installation- and maintenance instruction
STG 146
172 205 80 07-01
DESCRIPTION
Components
1. Reset button
2. Gas burner control
3. Transformer
4. Fixing ange
5. Connection MultiBloc
6. Ionisation electrode
7. Inner assembly
8. Brake plate
9. Burner tube
10. Ignition electrode
11. Air damper
12. Front part fan housing
13. Rear part fan housing
14. Air pressure switch
15. Shielding arrangement
fan housing
16. Fan wheel
17. Air adjustment
18. Inner assembly adjustment
19. Motor
20. Electric connection
21. MultiBloc
TECHNICAL DATA
172 215 43 07-01
Capacity chart according
to EN 676
1) Caloric value:
Natural gas 10 kWh/Nm3
2) Depending on gas quality and
available pressure
Out range
The above dimensions are max. measurements. Depending on the compo-
nents used, the measurements may vary.
Type Capacity Nm3/h at min.
output of burner 1)
Nm3/h at max
output of burner 1)
Rated inlet pressures
mbar
STG 146 Natural gas
23,5-65
Natural gas
2,35
Natural gas
6,5
Natural gas
20
Connection 2) Motor Ignition transformer
Natural gas
½"
220/240V,2800r/m,
50Hz, 70-90 W, 0,65A
Electronic
230/11000V, Ampl.
Length of
burner tube
Flange A
Measure A
Standard 108 81
Long design 140 113
Type designation STG 146 Burner head 1
in accordance with RAL UZ 80
Dimensions
A
ø 89
20261192
139
290
244
10
145,0
23,5
109,5
TECHNICAL DATA
172 215 44 07-01
Capacity chart according to
EN 676
1) Caloric value:
Natural gas 10 kWh/Nm3
LPG 26 kWh/Nm3
2) Depending on gas quality and
available pressure
Out range
The above dimensions are max. measurements. Depending on the compo-
nents used, the measurements may vary.
Length of
burner tube
Flange A
Measure A
Standard 145 121,5
Long design 245 221,5
Type Capacity Nm3/h at min.
output of burner 1)
Nm3/h at max
output of burner 1)
Rated inlet pressures
mbar
STG 146 Natural gas
41-133
LPG
47-144
Natural gas
4,1
LPG
1,8
Natural gas
13,3
LPG
5,5
Natural gas
20
LPG
30
Connection 2) Motor Ignition transformer
Natural gas, LPG
½"
220/240V,2800r/m,
50Hz, 70-90 W, 0,65A
Electronic
230/11000V, Ampl.
Type designation STG 146
Burner head 2
Dimensions
LPGNatural gas
A
ø 89
20261
192
139
290
244
10
145,0
23,5
109,5
172 415 11 07-01
SKELETON DIAGRAMS
1. Ball valve
2. Filter
3. Governor
4. Pressure gauge with shut-off
cock
5a. Gas pressure switch, mini
5b. Gas pressure switch, maxi
Incorporated in the Multibloc
6a. Main valve
6b. Safety valve
1)7. Valve proving system
9. Air pressure switch
10. Gas burner control
Pos. 5b, 7: Components not required
according to EN 676.
1) Required over 1200 kW according
to EN 676.
When Bio gas is used, Bentone shall always be contacted.
Incorporated in the MultiBloc
The gas armature is from the factory
mounted in a horizontal position. The
connection of the incoming gas line
is made from the right side. Should
it for some reason be necessary to
make the gas connection in any other
direction the armature can be turned
180° to the left and upwards. It is also
possible to connect the gas to the
multi-bloc straight backwards. The
armature can also be extended so
that it comes outside the boiler if there
is not enough room. Ensure that the
distance between the inner asembly
and the gas armature is not too long.
If the distance is too long there will not
be time for the burner to light.
Fit the enclosed ange and gasket to
the boiler.If new xing holes must be
drilled, use the xing ange as a pat-
tern. Use xing screws M8-M10.
Push the burner into the ange and
x it by means of the screws in the
ange. Ensure that the burner is tted
absolutely straight.
MOUNTING ON THE BOILER
Installation example
Connect the gas to the burner by
means of the ball valve. To facilitate
service a union nut is used between
the gas supply system and the ball
valve. Ensure that the union nut,
ball valve and tubing make it easy
to remove the burner for inspection
and service.
172 205 81 07-01
172 425 16 08-01
ELECTRIC EQUIPMENT
Component list
A1 Gas burner control
A2 Twin thermostat
B1 Ionization electrode
F1 Fuse
H1 Alarm, 230 V
If there is no plug-in contact (X2) on the
boiler, connect to the contact enclosed.
In case the twin thermostat is in series
on incoming phase L1,
a loop between the terminals T1 and
T2 is necessary.
Mains connection in accordance with local regulations.
M1 Burner motor
S3 Main switch
S8 Air pressure switch
S9 Gas pressure switch
T1 Ignition transformer
X1 Plug-in contact, burner
X2 Plug-in contact, boiler
Y1 Gas solenoid valve
Gas burner control: LGB21/LMG21/LME11/LME21
Wiring diagram
1(5)
172 425 16 08-01
ELECTRIC EQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LGB
Lock-out and Control Programme Indication
The position of the cam can be read through the sight-glass. Under fault condition
the programme is stopped and thus also the lock-out indicator. The symbol visible on
the cam indicates both the position in the programme run and the type of fault. The
symbols are explained below:
No start because the control loop is interrupted
Waiting for the pre-purge to start
Air damper open (LGB22)
Fault condition due to absence of air pressure signal (LGB21),
air damper not open (LGB22)
Pre-purge period
Fuel release (LGB22)
Fault condition because no ame signal available after elapse of the 1st
safety time
Release of the 2nd fuel valve (LGB21)
Release of the load controller LR (LGB22)
Partial or full load operation (or return to the operating position)
Control Programme in Case of Faults
Basically, the fuel supply is stopped immediately in the case of any fault. If the fault
condition occurs at a time between start and pre-ignition, which is not indicated by
symbols, the cause is usually a switch-off by the air pressure switch LP or a too early,
i.e. faulty, ame signal.
• After supply voltage failure: Start-up repetition with unabridged programme.
• If premature ame signal at start of pre-purge time: Immediate lock-out.
• If contacts of air pressure switch LP have welded during tw: No start.
• If no air pressure signal: Lock-out when t10 has elapsed.
• If air pressure failure after elapse of t10: Immediate lock-out.
• If burner does not ignite: Lock-out when safety time t2 has elapsed.
• If ame is lost during operation: Immediate lock-out.
• For ignition spark proving with QRE: If no ignition spark signal, the valves remain
closed and there is lock-out when t2 has elapsed.
Resetting the burner controls
The controls can be reset immediately after any fault condition. The programme re-
verts to its start position and programmes the controls for restarting the burners.
Connecting signal amplier
2(5)
A1 = LGB
GP
R/W
L N
br bl rt sw
sw rtQ1 = AGQ 1...
QRA
11112 2
172 425 16 08-01
3(5)
During the time the cause
of the fault is diagnosed,
the control outputs are
deactivated.
– The burner remains shut
down
– Exception: fault status
signal «AL» at terminal 10
The burner is switched on
only after a reset is made.
– Press lockout reset but-
ton for 0.5...3 seconds
ELECTRIC EQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LMG ...
Diagnosis of cause of fault
After lockout, the red fault LED is steady on. For reading the cause of fault, refer to
the blink code given in the following table:
Connecting signal amplier
Error code table
Blink code Possible cause
2 x
••
• No establishment of ame at the end of «TSA»
– Fault or soiled detector electrode
– Fault or soiled fuel valves
– Poor adjustment of burner
3 x
•••
• Air pressure monitor does not close
– «LP» faulty
– «LP» incorrectly adjusted
– Fan motor does not run
4 x
••••
• Air pressure monitor does not open or extraneous light on
burner startup
– «LP» faulty
– «LP» incorrectly adjusted
5 x
•••••
• Extraneous light during pre-purging
– Or internal device fault
7 x
•••••••
• Loss of ame during operation
– Poor adjustment of burner
– Faulty or soiled fuel valves
– Short-circuit between detector electrode and ground
8...17 x
••••••••
.................
••••••••••
•••••••
• Free
18 x
••••••••••
••••••••
• Air pressure monitor opens during pre-purging or operation
– «LP» correctly adjusted
– Four times loss of ame during operation (LMG25)
19 x
••••••••••
•••••••••
• Faulty output contact
– Wiring error
– External power supply on output terminal
20 x
••••••••••
••••••••••
• Internal device fault
A1 = LMG
GP
R/W
L N
br bl rt sw
sw rtQ1 = AGQ 2...
QRA
11112 2
AL
FS
Red LED on LED on (waiting time≥10 s)
Fault
Press lockout reset button
for > 3 s Blink code Off Blink code
Approx.
3 s
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