PART I: INSTALLATION
21
Power supply without neutral
If the power supply to the burner is 230V phase-phase (without the neutral wire), with the Siemens LME.. control box (see Appendix),
between the terminal 2 on the board and the earth terminal, an RC Siemens RC466890660 filter must be inserted.
Fig. 27 - Probes connection
Key
C1
LOW FLAME TIME METER
FU1
LINE FUSE FOR FAN MOTOR
FU3
LINE FUSE
FU4
AUXILIARY FUSE
IL
BURNER LINE SWITCH
IM
FAN MOTOR LINE SWITCH
KM1
FAN MOTOR REMOTE CONTACTOR
SIEMENS RWF40 MODULATION REGULATOR
LB
BURNER LOCKOUT SIGNALLING LAMP
LBF
BURNER IN LOW FLAME SIGNALLING LAMP
MV
FAN MOTOR
SD-0÷10V VOLTAGE SIGNAL
SD-0/4÷20mA CURENT SIGNAL
SD-PRESS PRESSURE PROBE
SMA
MAN/AUTO SELECTOR
SMF
OPERATION SELECTOR MIN-0-MAX
ST
PRESSURE SWITCHES OR THERMOSTATS SERIE
TS
SAFETY THERMOSTAT/PRESSURE SWITCH
Key
C - Capacitor (22nF/250V)
R - Resistor (1Mohm)
(***) RC466890660 - RC Siemens filter
(Code: 2531003)
Fig. 28
R
C
SIEMENS
