
CE1N2226E / 01.02.2000
Siemens Building Technologies
6/8
Landis & Staefa Division
Lx
L1
Y1
M1
N1
AC
2
3
0
V
L2
N
L
AC 24
..
.2
5
0
V
2226A
01
S1
T1
T2
L
Lx
N
Nx
L
Live, AC 230 V
Nx
Neutral AC 24...250 V
Lx
Live, AC 24...250 V
N1
RAV12.. controller
L1
N.O. contact, AC 24…250 V /
8 (3.5) A
S1
T1
Remote operating unit (potential-free)
Signal "remote operation"
L2
N.C. contact AC 24...250 V
T2
Signal "remote operation"
M1
Circulating pump
Y1
Regulating unit
N
Neutral AC 230 V
T
T
F1
F2
N1
M1
Y2
22
22
S
0
1
T
T
F1
F2
N1
M1
Y2
22
2
2
S02
T
T
Instantaneous water heater)
Atmospheric gas burner
T
N1
Y1
22
2
2
S0
3
M1
Circulating pump with pre-control by manual mixing valve
F1
Thermal reset limit thermostat
N1
RAV12.. room temperature controller
F2
Manual reset safety limit thermostat
Y1
Manually operated three-port valve
M1
Circulating pump
Y2
Solenoid valve
Connection diagram
Application
examples