Vent-Axia VSC Series Installation And Wiring Instructions page 7

108XA
3 ~ Motor with 2 speeds
( -/Y switch over) and
thermostatic switch (if built in).
Without bridge when using
speed change-over switch.
Direction of airflow: V
Direction of rotation: Counter clockwise
Cable colours:
U1 Brown
V1 Blue
W1 Black
U2 Red
V2 Grey
W2 Orange
TB White
108XB
3 ~ Motor with 2 speeds
( -/Y switch over) and
thermostatic switch (if built in).
Without bridge when using
speed change-over switch.
Direction of airflow: A
Direction of rotation: Counter clockwise
Cable colours:
U1 Brown
V1 Blue
W1 Black
U2 Red
V2 Grey
W2 Orange
TB White
177X
1 ~ Motor with capacitor and
thermostatic switch.
FN Series
Airflow direction: A
Direction of rotation: Counter-
clockwise rotation (looking at rotor)
FB Series
Airflow direction: A
Direction of rotation: Clockwise
rotation (looking at rotor)
Cable colours:
U2 Blue or Grey
Z2 Black
TB Brown
High speed/ -connection
High speed/ -connection
Other speeds possible with capacitor
connected in series.
Low speed/Y-connection
Low speed/Y-connection