Grundfos UPM3 Instructions Manual page 15

5a
UPM3
1 x 230 V - 15 %/+ 10 %
∽ 50/60 Hz
L
PE
N
IN
REF
OUT
REF
IN
OUT
28
INTERNALLY
5b
CONTROLLED
HYBRID, FLEX AS, AUTO,
AUTO2, DHW, SOLAR
1 x 230 V - 15 %/+ 10 %
∽ 50/60 Hz
L
PE
N
29