Siemens LMO14 Series Manual page 12

Legend
12/13
Building Technologies Division
Infrastructure & Cities Sector
Alarm device
AL
BV... Fuel valve
EK1 Lockout reset button
EK2 Remote lockout reset button
FS Flame signal
FSV Flame signal amplifier
K... Contacts of control relay
kbr Cable link (required only when no oil preheater is used)
LED 3-color signal lamp
M Burner motor
OW Release contact of oil preheater
OH Oil preheater
QRB... Photo resistive flame detector
QRC... Blue-flame detector
bl = blue, br = brown, sw = black
R Control thermostat or pressurestat
SB Safety limit thermostat
Si External primary fuse
W Limit thermostat or pressure switch
Z Ignition transformer
TSA Ignition safety time
tw Waiting time
t1 Prepurge time
t1´ Purge time
t3 Preignition time
t3n Postignition time
t4 Interval from flame signal to release of fuel valve 2 (BV2)
A´ Start of startup sequence with burners using an oil preheater (OH)
A Start of startup sequence with burners using no oil preheater (OH)
B Time of flame establishment
C Operating position
D Controlled shutdown by control thermostat or pressurestat (R)
Control signals
Required input signals
Perm. input signals
µC1 Microcontroller 1
µC2 Microcontroller 2
CC1N7130en
22.08.2013