Riello 20148874 - Page 24

20152192
22
GB
Technical description of the burner
Key Fig. 16
Tab. K
Times
Tab. L
AL
Alarm device
AUX
Auxiliary output
Dbr
Lead connection
Reset button (info button)
EK2
Remote reset button
FSV
Flame signal amplifier
ION
Ionisation probe
K...
Relay contact
LED
Warning lamp with 3 colours
LP
Air pressure switch
LR
Load controller
LR-OPEN
Load controller OPEN
LR-CLOSE
Load controller CLOSED
M
Fan motor
NT
Power supply unit
P LT
Pressure switch valve test
Pmax
Max. pressure switch
Pmin
Min. pressure switch
POC
Closure test
PV
Pilot valve
QRA...
UV flame detector
R
Control thermostat or pressure switch
SA
Actuator
SA-KL
Low flame actuator
SA-NL
High flame actuator
SA-R
Feedback actuator
SA-Z
Actuator CLOSED
SA-ZL
Ignition load actuator
SL
Safety loop
STB
Safety limit thermostat
SV
Safety valve
V1
Fuel valve
V2
Fuel valve
V2a
Fuel valve
W
Limit pressure switch or thermostat
Z
Ignition transformer
µC µC controller
Input/output 1 signal (ON)
Input/output 2 signal (ON)
Input 1 permitted signal (ON) or 0 (OFF)
/re set
(EK1)
TSA Safety time
tw Waiting time
t1 Pre-purge time
t3 Pre-ignition time
t3n Post-ignition time (P257 +0.3 seconds)
Ignition time 6s pilot valve ON - fuel valve OFF
6÷12s pilot valve ON - fuel valve ON
>12s pilot valve OFF - fuel valve ON
t4 Interval: end of safety time load controller
release
t8 Post-purge time
t10 Specified time air pressure switch state mes-
sage (time out)
t11 Opening time of actuator (time out)
t12 Closing time of actuator (time out)