Grundfos LC 241 Montage- Und Betriebsanleitung Seite 526

A.2. Cabinet with run capacitor for single-phase motors
Grundfos IO242
Pump-module
24VEXT
GND
ADI
GND
DI 4
GND
DI 3
GND
DI 2
GND
DI 1
PTC 2B
MPF2
PTC 2A
PTC 1B GND
MPF1
PTC 1A
CT-sensor
CT-sensor
Start
Relay
Power Supply
526
Cable duct for Auxiliary wiring
PTC2
2Z2
2N2
2U2
PTC1
1Z2
1N2
1U2
N
L
Fuse Terminal
Start Capacitor
Run Capacitor
AUX
Protective
Earth
Pump#2
Pump#1
Mains