Airfl Ow Changing - Fujitsu ARUV12TLAV Installation Manual

6.4.3. Power entry connection
Lock nut
Conduit
(L1, L2 (N): Power
supply cable)
Do not bind the power supply cable and other cables together.
6.4.4. Control entry connections
When switching the DIP switch (SW1), be sure to turn off the power supply to the indoor
unit. Otherwise, the PC board of the indoor unit may be damaged.
To protect the cable insulation after opening a knockout hole, remove any burrs from the
edge of the hole.
DIP switch
(SW1)
Connect the
remote controller
2WIRE
cable
3WIRE
Set the DIP switch
(SW1)
*1: If you connect the remote controller cable to the terminal Y3,
2-wire type remote controller does not work.
Y1, Y2, Y3:
Remote controller
cable
X1, X2:
Cable tie (Medium) (Accessories)
Transmission cable
When using the following optional parts, bind each
connection cable with the transmission and remote
controller cables.
• 6.6 External input and external output (optional parts)
• 6.7 Remote sensor (optional parts)
• 6.8 IR receiver unit (optional parts)
En-9
CAUTION
For 2-wire type For 3-wire type
Y1:Non-polar Y1:Red
Y2:Non-polar Y2:White
Y3:Do not connect *1 Y3:Black
2WIRE
3WIRE
(Factory setting)
Fix the conduit with the supporters as shown below.
54 in
(1,361 mm)
or less
6.5 Airfl ow changing
The outdoor unit static pressure can be changed to high or low by replacing the fan motor
control relay wire.
Earth
(Ground)
Connector position
Relay wire
Fan motor side
External static pressure and required connector type
Model
ARUV12TLAV
ARUV18/24/30/36/48/60TLAV
Supporter Conduit (Power supply cable)
54 in 54 in
(1,361 mm) (1,361 mm)
or less or less
30 in (756 mm) or less
Power supply board
Fan motor control connector
External static pressure
[in WG (Pa)]
0.7 (175)
0.5 (125)
0.1 (25)
0.8 (200)
0.5 (125)
0.1 (25)
Indoor unit
CN 110
FAN CONT.
Power supply board side
Connecting connectors
Power board Fan motor
side side
High High
Standard Standard
Low Low
High High
Standard Standard
Low Low
(Standard is factory setting)