Table of Contents
Transmission terminal (M3)
Cable tie
(accessory)
Transmission cable
How to connect wiring to the terminal
Caution when wiring cable
(1) Use ring terminals with insulating sleeves as shown in the fi gure 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 specifi ed 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 transmission cable with 2 sets
of twisted-pair cables.
Wind with insulation tape to prevent short circuit
Use one side of the
Connect both ends of shielded wire to earth (Ground).
twisted-pair cable
En-11
Power supply terminal
Ring terminal (M5)
Earth
(ground)
cable
Conduit
Tightening torque
4.4 to 5.3 lbf·in
M3 screw
(0.5 to 0.6 N·m)
17.7 to 26.5 lbf·in
M5 screw
(2.0 to 3.0 N·m)
About 21-5/8 in (550 mm)
About 20-1/2 in (520 mm)
Cable tie (accessory)
Conduit (Power supply cable)
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Cable
Installation method of conduit plate
Please fi x the conduit plate (accessory) as shown in the fi gure below.
Front connection
Lateral connection
Conduit plate
lock nut
Cable (with conduit)
• Fix the conduit with the supporters as shown below.
Conduit (Power supply cable)
Outdoor unit
30 in
(756 mm)
(1,361 mm)
or less
6. 6.
External input and external output
6. 6. 1. Terminal position
Outdoor unit
PC board
Input 5
(CN135 :
Orange)
Output 1
(CN136 :
Black)
Output 2
(CN137:
Blue)
Do not bundle the cable for base heater with other cables.
Rear connection
Supporter
54 in
54 in
(1,361 mm)
(1,361 mm)
or less
or less
or less
Base heater
(CN115:Black)
BASE HEATER
CN115 (BLK)
Input 4
CN134
(CN134:Red)
EXT.
IN. 4
(RED)
Input 3
CN133
PULSE
EXT.
(CN133:White)
IN
IN. 3
(ORG)
(WHT)
CN132
EXT.
EXT.
Input 2
OUT. 1
IN. 2
(CN132:Green)
(BLK)
(GRN)
CN131
EXT.
EXT.
OUT. 2
IN. 1
Input 1
(BLU)
(YEL)
(CN131:Yellow)
CAUTION
54 in
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