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ELECTRICAL DIAGRAM
KEY
SA
Room temperature probe
SW
Water temperature probe (cold with 4-pipe units)
Hot water temperature probe (only with 4-pipe
SWH
units)
SU
Ambient humidity probe
ON/OFF
Dry contact for remote ON/OFF
MS
Micro switch FLAT - 2X1
SUM/WIN
Dry contact for remote SUMMER/WINTER
ECONOMY
Dry contact for remote ECONOMY
FAN 0/10V
Modulating fan 0/10V
Modulating 0/10V water valve (cold with 4-pipe
VH 0/10V
units)
VH 0/10V
Modulating hot water valve (only with 4-pipe units)
MV
Fan
INV
Fan inverter
MV INV
Inverter fan motor
V1
Extra-low speed
V2
Low speed
V3
Medium speed
V4
Maximum speed
COM
Common for ON/OFF outputs
VC
Water valve (cold with 4-pipe units)
Cold water valve (only with 4-pipe units) or electric
VH/RE
heater
CN
Unit terminal board
IL
Line switch (not included)
F
Fuse (not included)
L
Phase
N
Neutral
GB
25
Controller for units
(figure 23)
OPERATION MANUAL
IT IS strictly forbidden to reproduce this manual, even partially
EVO
FC66003554
Rev 01
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