User Manual

14
Wiring diagram of the double control switch
Connect to the terminal block
High, high speed for the fan
Connect to the terminal block
Low, low speed for the fan
Short the two points
with a wire
Connect to the live wire L
of 220V power supply
Figure 9 Wiring diagram of the double control switch
Electrical principle diagram of upgraded version (LCD controller)
TRV015ACB/TRV025ACB
Controller
Live wire
Neutral line
High speed
Neutral line
Medium
speed
Low speed
Not e: Short-circuit the high-speed level and
the medium-speed level.
Power supply 220V ~ 50Hz
Not e: The dashed lines indicate
the wires to be connected on site.
Symbol
Nam e
Terminal block
Starting capacitor
Speed regulating capacitor
Fresh air fan
Discharge fan
Circuit breaker
LCD controller
Bl ue
Bl ue
Bl ue
Black
Black Black
Brown
Brown
Yellow/green
Yellow/green
Low speed
High speed
Neutral line
Figure 10 Electrical principle diagram (LCD controller)
Note: Short the high speed gear and the medium speed gear during installation.