Indoor Unit Side - Fujitsu AR 7 Installation Manual

9.1. INDOOR UNIT SIDE

(1) Remove the control box cover from the control box.
(2) Cable connection
• Connect the connection cable to the terminal board.
• Connect the remote controller cable to the terminal board.
• Fix the remote controller cable to the control box cover
with a nylon clamp.
Earth (Ground)
Power supply
cable
φ7/8 in.
(22.2 mm)
Cover
Screw
Remote controller cable
1: Red
2: White
3: Black
Cable tie (Small)
(Accessories)
Conduit (Field supply)
Conduit (Field
supply)
Power supply cable
(3) Wiring system diagram
INDOOR UNIT SIDE
INDOOR DISCONNECT
UNIT SWITCH (Field
supply)
TERMINAL
Disconnect Switch - Field supplied if required by local code.
Select the correct capacity of disconnect switch according to
the load.
CAUTION
Tighten the indoor unit connection cable and power
supply indoor and outdoor unit, branch box terminal
board connections fi rmly with the terminal board screws.
Faulty connection may cause a fi re.
If the indoor unit connection cable and power supply are
wired incorrectly, the air conditioner may be damaged.
Connect the indoor unit connection cable by matching
the numbers of the outdoor, branch box and indoor units
terminal board numbers as shown in terminal label.
Earth (Ground) both the indoor, outdoor and branch box
units by attaching a earth (ground) cable.
Unit shall be earthed (grounded) in compliance with the
applicable local and national rules.
WARNING
Disconnect switch for over current protection given in
the system diagram is to be installed between the indoor
unit and the outdoor unit, branch box.
CAUTION
Be sure to refer to the previous diagram for do correct fi eld
wiring. Wrong wiring causes malfunction of the unit.
Check local electrical rules and also any specific wiring
instructions or limitations.
Cable tie (Small)
(Accessories)
Remote controller cable
Conduit (Field supply)
OUTDOOR UNIT
or BRANCH BOX
14AWG
(Inter-unit)
Power lines
Power line
Control line
Earth (Ground)
line
En-17