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Key Fig. 8:
Alarm device
AL
AUX
Auxiliary output
Dbr
Wire link
Lockout reset button (info button)
(EK1)
/reset
EK2
Remote lockout reset button
FSV
Flame signal amplifier
ION
Ionization probe
K...
Relay contact
LED
3-color signal lamp
LP
Air pressure switch
LR
Load controller
Load controller OPEN position
LR-OPEN
LR-CLOSE
Load controller CLOSED position
M
Fan motor
NT
Power supply unit
P LT
Pressure switch valve proving
Pmax
Pressure switch-max
Pmin
Pressure switch-min
POC
Proof of closure
PV
Pilot valve
UV flame detector
QRA...
R
Control thermostat or pressurestat
Actuator
SA
SA-KL
Actuator low-fire
SA-NL
Actuator high-fire
SA-R
Actuator feedback
SA-Z
Actuator CLOSED
SA-ZL
Actuator ignition load
SL
Safety loop
Safety limit thermostat
STB
SV
Safety valve
Fuel valve
V1
V2
Fuel valve
V2a
Fuel valve
W
Limit thermostat or pressure switch
Z
Ignition transformer
µC
µC controller
Input/output signal 1 (ON)
Input/output signal 2 (OFF)
Input permissible signal 1 (ON) or 0 (OFF)
Technical description of the burner
Times
TSA
tw
t1
t3
t3n
t4
t5
t8
t10
t11
t12
td1
td2
td3
td4
Tab. H
15
GB
Safety time
Waiting time
Prepurge time
Preignition time
Postignition time (P257 +0.3 seconds)
Interval: end of safety time load controller
release
Interval: Pilot valve OFF - load controller
release
Postpurge time
Specified time air pressure switch state mes-
sage (timeout)
Opening time of actuator (timeout)
Closing time of actuator (timeout)
Test atmospheric pressure
Test gas pressure
Test space filling
Test space evacuating
Tab. I
20051011
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