Spirax Sarco LC2250 - Page 19

IM-P402-130 EMM Issue 9
19
Mains circuit
(view from the underside)
Relays are shown in the
power off position
Caution live
terminals
ac supply
Control relay
Alarm 1 relay
Front
Back
3 A
fuse
Input
Alarm
L
N
See Section 5.2
Mains wiring notes
3 A fuses
Input
8 7 6
5
4
2
1
3
Open
Modulating
control
Control valve electric
actuator (valve motor
drive)
Fig. 5 Mains circuit
Close
ON / OFF control
Pump contactor
Pump
contactor
N
N
Norm
22
21
20
Input
Alarm
Norm
Alarm 2 relay
3 A fuse