A.O. Smith ITES Series Installation, User And Service Manual page 101

0312809_ITES_NLEN_V0.0, 08-11-2019
TERMINAL BLOCK CONNECTIONS
Earth
N Neutral
L Phase-input
1
L Phase-input
2
L Phase-input
3
COMPONENTEN
A Power supply
B Safety switch
C Relay
D Automatic fuse
E Safety thermostat
F Electrical heating element
G Transformer 400V
AC
H Switch electrical element
J Pump station
L PWM-signal pump station
M Control (Resol)
N Signal maximum temperature
O Auxiliary relay
S Collector sensor
1
S Bottom tank sensor
2
S Top tank sensor
3
S Temperature sensor of Q/T-sensor
4
X Earth terminal
1
X Terminal
2
/230V
AC
99