GB
WIRING DIAGRAMS
READING KEY
MS
= Microswitch
IG
= Main switch
M
= Terminal board
MV
= Fan motor
PE
= Earth connection
SA
= Room sensor
SC
= Electronic control board
SW
= Water temperature sensor
VCH = Solenoid valve
Wiring diagrams may change for updating. It is therefore necessary to refer always to the wiring diagram inside the units.
28
SW max 3m
SA max 3m
MS max 3m
1
3
5
6
7
C L U S T E R
= On-site wiring
= Components not supplied
BL
= Blue
GR
= Grey
GV
= Yellow-Green
MA
= Brown
NE
= Black
RO
= Red
Vel.1
230V / 450VA
Vel.2
2A max 3m
Vel.3
N
PE
230V 50Hz
L
Y1
230V / 450VA
2A max 3m
Y2
1