Riello RS 300/E BLU - Page 18

20041904
16
GB
Technical description of the burner
Electrical connection of ionization probe and flame detector
It is important for signal transmission to be almost totally free
of any disturbances or loss:
• always separate the detector cables from the other cables:
– Line capacitance reduces the magnitude of the flame signal.
– Use a separate cable.
• Respect the allowed cable lengths.
• The ionisation probe is not protected against the risk of elec-
trocution. When connected to the electricity supply, the ionisa-
tion probe must be protected against any accidental contact.
• Position the ignition electrode and the ionisation probe so
that the ignition spark cannot form an arc on the probe
(risk of electric overcharge).
Technical data
Tab. J
LMV51... basic unit Mains voltage AC 230 V -15 % / +10 %
Mains frequency 50 / 60 Hz ±6 %
Power absorption < 30W (normal)
Safety class I, with components in compliance with II and III, according to
DIN EN 60730-1
Load on
‘input’ terminals
F1 unit fuse (internal) 6.3 AT
Main fuse of perm. network (external) Max. 16 AT
Undervoltage
• Safety switch-off from operating position to
mains voltage
• Restart when mains voltage picks up
< AC 186 V
> AC 188 V
Oil pump / magnetic clutch (nominal voltage)
• Nominal current
• Power factor
2A
cos
ϕ > 0.4
Air pressure switch test valve (nominal voltage)
• Nominal current
• Power factor
0.5A
cos
ϕ > 0.4
Load on ‘output’
terminals
Total load on the contacts:
• Mains voltage
• Total unit input current (safety circuit)
load on contacts due to:
- Fan motor contactor
- Ignition transformer
- Valve
- Oil pump / magnetic clutch
AC 230 V -15 % / +10 %
Max. 5 A
Single contact loading:
Fan motor contactor (nominal voltage)
• Nominal current
• Power factor
1A
cos
ϕ > 0.4
Alarm output (nominal voltage)
• Nominal current
• Power factor
1A
cos
ϕ > 0.4
Ignition transformer (nominal voltage)
• Nominal current
• Power factor
2A
cos
ϕ > 0.2
Fuel gas valve (nominal voltage)
• Nominal current
• Power factor
2A
cos
ϕ > 0.4
Fuel oil valve (nominal voltage)
• Nominal current
• Power factor
1A
cos
ϕ > 0.4
Cable lengths Main line Max. 100 m (100 pF/m)
Environmental
conditions
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-3
Class 3K3
Class 3M3
-20...+60°C
< 95% RH