Riello RS 25/E BLU Series, Installation, Use And Maintenance Instructions

Page: 17 / 76

15 20068118
GB
Technical description of the burner
Electrical connection of 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; it must be protected against any accidental con-
tact.

The grounding of the burner must be in compliance with the
rules in force; the grounding of the boiler alone is not
enough.
 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
Control box Mains voltage AC 230 V -15 % / +10 %
Mains frequency 50 / 60 Hz ±6 %
Power absorption < 30 W (normal)
Safety class I, with components in compliance with II and III, ac-
cording to DIN EN 60730-1
Load on ʻ input ʼ
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 195 V
Input currents and input voltages
–
UeMax
– UeMin
– Iemax
– IeMin
UN +10%
UN -15%
1.5 mA peak
0.7 mA peak
Voltage detection
–
On
– Off
AC 180...253 V
< AC 80 V
Load on ʻ output ʼ
terminals
Total load on the contacts
– Mains voltage
– Total unit input current (safety circuit)
- Fan motor contactor
- Ignition transformer
- Valve
AC 230 V, 50 / 60 Hz
Max. 5 A
Single contact loading
Fan motor contactor
–
Rated voltage
– Nominal current
– Power factor
AC 230 V, 50 / 60 Hz
2A
cos

> 0.4
Alarm output
–
Rated voltage
– Nominal current
– Power factor
AC 230 V, 50 / 60 Hz
1A
cos

> 0.4
Ignition transformer
–
Rated voltage
– Nominal current
– Power factor
AC 230 V, 50 / 60 Hz
2A
cos

> 0.2
Fuel valve
–
Rated voltage
– Nominal current
– Power factor
AC 230 V, 50 / 60 Hz
2A
cos

> 0.4
Display operation
–
Rated voltage
– Nominal current
– Power factor
AC 230 V, 50 / 60 Hz
0,5A
cos

> 0.4