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Appendix A.
A.1. Cabinet with built-in star-delta
Grundfos IO242
Pump-module
24VEXT
GND
Timer
ADI
GND
DI 4
GND
DI 3
GND
DI 2
GND
DI 1
PTC 2B
PTC 2A
MPF2
PTC 1B
GND
PTC 1A
MPF1
Fan Thermostat
CT-sensor
Timer
Power Supply
Auto Fuse
CT-sensor
A.2. Cabinet with run capacitor for single-phase motors
Cable duct for Auxiliary wiring
Protective
Earth
PTC
4V2
4U2
4W2
3W2
3V2
3U2
PTC
2V2
2U2
2W2
1W2
1V2
1U2
N
L3
L2
L1
Cooling Fan
AUX
Pump#2b
Pump#2c
Pump#2a
Pump#1b
Pump#1c
Pump#1a
Mains
881
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