Enertech Bentone STG 146 Caractéristiques techniques
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Installation- and maintenance instruction
STG 146
172 205 80 97-01
DESCRIPTION
COMPONENTS
1. Reset button
2. Gas burner control
3. Transformer
4. Fixing flange
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
A
ø 89
20261192
139
290
244
TECHNICAL DATA
Type designation STG 146 Burner head 1 in accordance with RAL UZ 80
172 215 43 98-02
CAPACITY CHART ACCORDING TO
EN 676
Connection 2) Motor Ignition transformer
Natural gas 220/240V,2800r/m, Electronic
½" 50Hz, 70-90 W, 0,65A 230/11000V, Ampl.
1) Calorific value:
Natural gas 10 kWh/Nm3
2) Depending on gas quality and
available pressure
Type Capacity Nm3/h at min. Nm3/h at max. Rated inlet pressures
kW output of burner 1) output of burner 1) mbar
Natural gas Natural gas Natural gas Natural gas
STG 146 23,5-65 2,35 6,5 20
OUT RANGE
The above dimensions are max. measurements. Depending on the components
used, the measurements may vary.
DIMENSIONS
Length of Flange A
burner tube Measure A
Standard 108 81
Long design 140 113
A
ø 103
20261192
139
290
244
TECHNICAL DATA
Type designation STG 146 Burner head 2
172 215 44 98-01
CAPACITY CHART ACCORDING TO
EN 676
Connection 2) Motor Ignition transformer
Natural gas, LPG 220/240V,2800r/m, Electronic
½" 50Hz, 70-90 W, 0,65A 230/11000V, Ampl.
1) Calorific value:
Natural gas 10 kWh/Nm3
LPG 26 kWh/Nm3
2) Depending on gas quality and
available pressure
Type Capacity Nm3/h at min. Nm3/h at max. Rated inlet pressures
kW output of burner 1) output of burner 1) mbar
Natural gas LPG Natural gas LPG Natural gas LPG Natural gas LPG
STG 146 41-133 47-144 4,1 1,8 13,3 5,5 20 30
OUT RANGE
The above dimensions are max. measurements. Depending on the components
used, the measurements may vary.
DIMENSIONS
Length of Flange A
burner tube Measure A
Standard 145 121,5
Long design 245 221,5
LPG
Natural gas
TECHNICAL DATA
172 215 45 98-01
DIMENSIONS OF FLANGE
Flange
10
145,0
23,5
109,5
172 415 11 03-01
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
6a. Main valve
Incorporated in the Multibloc
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.
MOUNTING ON THE BOILER
Fit the enclosed flange and gasket to
the boiler.If new fixing holes must be
drilled, use the fixing flange as a pat-
tern. Use fixing screws M8-M10.
Push the burner into the flange and fix
it by means of the screws in the flange.
Ensure that the burner is fitted absolu-
tely straight.
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
connectthegastothe multi-blocstraight
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.
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 97-01
ELECTRIC EQUIPMENT
GAS BURNER CONTROL: LGB21/LMG21/LME11/LME21
WIRING DIAGRAM
COMPONENTLIST
A1 Gas burner control
A2 Twin thermostat
B1 Ionization electrode
F1 Fuse
H1 Alarm, 230 V
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
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.
172 425 16 08-02Mains connection in accordance with local regulations.
172 435 82 08-01
ELECTRIC EQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LGB ...
Connecting signal amplifier A1 = LGB
GP
R/W
LN
br bl rt sw
sw rtQ1 = AGQ 1...
QRA
11112 2
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:
Lock-out and Control Programme Indication
Resetting the burner controls
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, flame signal.
•After supply voltage failure: Start-up repetition with unabridged programme.
•If premature flame 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 flame 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.
The controls can be reset immediately after any fault condition. The programme reverts
to its start position and programmes the controls for restarting the burners.
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 flame 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)
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