Wiring Diagram - Grundfos 186 Instrucciones De Instalación Y Operación

4.3.1 Wiring diagram

A B
PE
PE
4 5 6 7 8 9
PE PE
24 V
230 V
Pos. Terminals
A Contact manometer battery 1
B Contact manometer battery 2
C Battery 1 operation
D Battery 2 operation
E Battery 1 empty
F Battery 2 empty
Change-over device "man"
G
Change-over device "auto"
H Power supply
I LiquFilt battery 1
J LiquFilt battery 2
S1/S2
1 2 5 6
UV
2 1 PE 4 3
10 11 12 13
14 15 16 17 18 19 20 21
PE
1 2 3
L1 N PE
PE
L N PE
H
I
Description
Contact manometer: contact R4 closes at falling pressure
Contact manometer: contact R4 closes at falling pressure
Contact 19, 20 open
Contact 22, 23 open
Contact 25, 26 open
Contact 28, 29 open
Contact 31, 32 closed
Contact 31, 32 open
Power supply 115 V, 50/60 Hz, or 230 V, 50/60 Hz, for heater
Power supply 115 V, 50/60 Hz, or 230 V, 50/60 Hz, for heater
C D E
22 23 24 25 26 27 28 29 30
4 5 6
PE
L N PE
J
G
F
man auto PE
32 33
31 34
PE
Contact 20, 21 closed
Contact 23, 24 closed
Contact 26, 27 closed
Contact 29, 30 closed
Contact 31, 33 open
Contact 31, 33 closed
9