170 091 16 08-01
The ambient temperature of the gas relay is too high
Heat insulate, max. 60° C.
The ignition spark is too weak
Check the transformer
Bad combustion
Bad draught conditions
Check the chimney
The lue gas temperature is too high
The boiler is overloaded. Reduce the quantity of gas.
The CO
2
-content is too low
Check the boiler with regard to leaks. Choke the draught
if it is too high.
The CO-content is too high
Excess air when using natural gas and gasoil
(propane, butane
Choke the air.
Air shortage
Open the air supply. Check the lue gas damper.
The holes in the gas nozzle are clogged
Clean.
The fresh air intake is too small
Check and enlarge.
The lame is not burning straight because the burner
head is out of position
Check the burner head and readjust.
Condensation in boiler and chimney
The low gas temperature is too low or the quantity
of gas is not suficient
Increase the lue gas temperature by increasing the
gas supply. Insulate the chimney
REMEDY
CAUSE
4(4)
927
ø
2
3
0
A
ø
1
9
9
820
4
0
3
5
1
3
7
8
1
4
0
3
413
Capacity chart according
to EN 676
Out range
TECHNICAL DATA
1
) Caloriic value:
Natural gas 10 kWh/Nm
3
LPG 26 kWh/Nm
3
The above dimensions are max. measurements. Depending on the compo-
nents used, the measurements may vary.
172 215 46 07-01
Type designation BG 700
Dimensions
Approved natural gas
Approved LPG
Length of burner
tube ± 5 mm
Flange
Measure A ± 5 mm
Standard
363
328
Long design
663
628
Type
Capacity
kW
Gas volume at a min.
output Nm
3
/h
1
)
Gas volume at a max
output Nm
3
/h
1
)
Max. inlet
pressure mbar
3
)
Natural gas
LPG
Natural gas
LPG
Natural gas
LPG
700
300-1500
360-1650
30
13,8
150
62,5
100-360
Rated inlet pressure
mbar
2
)
Connection
2
)
Motor
Ignition transformer
Natural gas
50
LPG
50
Natural gas,LPG
2½", 1½"
3,0 kW, 2800 r/m
230/400 V
11,2/6,5A
Primary 230 V, 1 A
Secondary 8 000 V
2
) Dimension and capacity depen-
ding on gas quality and available
inlet pressure
3
) See data plate on the built-on
(gas ittings)
