External Input And External Output - Fujitsu AIRSTAGE AJY126LELAH Installation Manual

6.5.2 Wiring procedure
• Remove the service panel. And connect the cable to the terminal in accordance with the
terminal name plate.
• Use a ring terminal to connect the electric cables to the power supply terminal board.
• Keep the earth cable longer than the other cables.
• After connecting the electric cable, secure them with a cable clamp.
• Connect the cable without applying excessive tension.
• Use the specified cable type and connect the cable securely.
Secure with a cable
Tightening
clamp as shown in the
torque
figure below.
Earth (ground)
cable
Cable tie
Push mount
cable tie
Power supply
(accessory)
cable
Transmission cable
How to connect wiring to the terminal
Caution when wiring cable
(1) Use ring terminals with insulating sleeves as shown in the figure 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 below for the terminal screw tightening torques.
Strip 3/8 in
(10 mm)
Screw with
special washer
Cable
Ring terminal
Terminal block
Shielding the transmission cable
Connect both ends of the shielded
wire of the transmission cable to
the earth (ground) terminal of the
equipment or to the earth (ground)
screw near the terminal.
Be sure to use one side of a
twisted-pair cable when using
Use one side
transmission cable with 2 sets of
of the twisted-
twisted-pair cables.
pair cable
M3 screw 0.5 to 0.6 N·m (5 to 6 kgf·cm)
M5 screw 2.0 to 3.0 N·m (20 to 30 kgf·cm)
Transmission terminal (M3)
Power supply terminal
Cable clamp Push mount
cable tie
Ring terminal (M5)
(accessory)
Power supply cable Transmission cable
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Cable
Wind with insulation tape to prevent short circuit
Connect both ends of shielded
wire to earth (Ground).

6.6. External input and external output

6.6.1 Terminal position
Base heater
(CN115: Black)
Outdoor unit PC board
Input 3
(CN133: White)
Do not bundle the cable for base heater with other cables.
Cable (for external
input and output)
Push mount cable tie (accessory)
(tightened with transmission cable)
Cable (for external input and output)
* If the outdoor unit is not installed in the wall, cover the exposed
part of cable with a 1 mm thick or more insulation tubing.
6.6.2 External input terminal
Setting to low noise mode, cooling priority/heating priority selection, outdoor unit operation
peak control setting, emergency/batch stop and electricity meter pulse are possible from
the outside.
Wiring method and specifications
* A twisted pair cable (22 AWG (0.33 mm²)) should be used. Maximum length of cable is
150 m.
* Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed
* For each input, pin No. 1 is of positive polarity and pin No. 2 is of ground level.
Input 2
Input 1
CN132
CN131
(Green)
(Yellow)
P.C.B
Connected unit Connected unit Connected unit Connected unit Connected unit
Output 1 (CN136: Black)
EXT. OUT. 1
CN136 BLK
Output 2
(CN137: Blue)
Input 1
(CN131: Yellow)
Input 4
(CN134: Red)
Input 2
(CN132: Green)
CN135
ORG
PLUSE. IN
Input 5 (CN135: Orange)
CAUTION
When connecting
cable to Input 2
Push mount cable tie
(accessory) (tightened
with transmission
cable)
Input 3 Input 4 Input 5
CN134 CN135
CN133
(White) (Red) (Orange)
En-10