Unit Wiring; Connection Of Wiring - Fujitsu AIRSTAGE ABUA12TLAV2 Installation Manual

Indoor unit (floor / ceiling type)
Table of Contents

Advertisement

6.3. Unit wiring

Before attaching the cable to terminal block.
6.3.1. Power supply cable
Adjust the length of power supply cable to avoid excessive tension with referring figure
below.
Earth
(Ground)
wire
A. For solid core wiring
(1) To connect the electrical terminal, follow the below diagram and connect after looping
it around the end of the cable.
(2) Use the specified cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(3) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screw-
driver that is too small, otherwise, the screw heads may be damaged and prevent the
screws from being properly tightened.
(4) Do not tighten the terminal screws too much, otherwise, the screws may break.
(5) See the table for the terminal screw tightening torques.
(6) Please do not fix 2 power supply cables with 1 screw.
Strip 1 in
(25 mm)
Screw with
special washer
Cable
Cable end (Loop)
Terminal block
When using solid core cables, do not use the ring terminal. If you use the solid core
cables with the ring terminal, the ring terminal's pressure bonding may malfunction and
cause the cables to abnormally heat up.
B. For strand wiring
(1) Use ring terminals with insulating sleeves as shown in the figure below to connect to
the terminal block.
(2) Securely clamp the ring terminals to the cables using an appropriate tool so that the
cables do not come loose.
(3) Use the specified cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screw-
driver that is too small, otherwise, the screw heads may be damaged and prevent the
screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
(6) See the table for the terminal screw tightening torques.
(7) Please do not fix 2 power supply cables with 1 screw.
Strip 3/8 in
(10 mm)
Screw with spe-
cial washer
Cable
Ring terminal
Terminal block
Use ring terminals and tighten the terminal screws to the specified torques, otherwise,
abnormal overheating may be produced and possibly cause heavy damage inside the
unit.
Tightening torque
M4 screw
(Power supply/L1, L2 (N), GND)
Conduit
3-1/8 in
connector
(80 mm)
3-1/8 in
(80 mm)
Loop
Screw with spe-
cial washer
Cable end (Loop)
Cable
WARNING
Ring terminal
Sleeve
Screw with spe-
cial washer
Ring terminal
Cable
WARNING
11 to 16 lbf·in
(1.2 to 1.8 N·m)
6.3.2. Transmission and Remote controller cable
Transmission cable
1-3/16 in (30 mm)
Shield
cable
(no film)
1-15/16 in
(50 mm)
• When the 2 cables are attached:
GOOD
Different diameter
Tighten the terminal screws to the specified torques, otherwise, abnormal overheating
may be produced and possibly cause heavy damage inside the unit.
Tightening torque
M3 screw
(Transmission/X1, X2)
(Remote controller/Y1, Y2)
To peel the film from the lead cable, use a dedicated tool that will not damage the
conductor cable.
When installing a screw on the terminal block, do not cut the cable by overtightening the
screw. On the other hand, an under tightened screw can cause faulty contact, which will
lead to a communication failure.

6.4. Connection of wiring

(1) Remove the electric compo-
nent box.
Electric component box
Do not remove the RFM fixing screws. If the stays are removed, the electric component
box will fall.
If you use as "Floor console", you must remove screws and RFMs (2 position).
When removing the electric
component box, remove the
clamp from the cables.
After completing the work,
fasten the cables as they
were originally by installing
the clamp.
(2) Pull out the
electric com-
ponent box.
Remote controller cable
1-3/16 in (30 mm)
PROHIBITED
Connect to 1 side
WARNING
4.4 to 5.3 lbf·in
(0.5 to 0.6 N·m)
CAUTION
Electric component box
RFM
CAUTION
Clamp
Cables
Remove
Install the
the clamp.
clamp.
Electric component box
En-8

Advertisement

Table of Contents
loading

Table of Contents