16
Installation of the Unit
CAUTION!
● Before starting work, check that power is not being supplied to the indoor unit and outdoor
unit.
● Match the terminal block numbers and connection cord colors with those of the indoor unit
side.
● Erroneous wiring may cause burning of the electric parts.
● Connect the connection cords firmly to the terminal block. Imperfect installation may cause
a fire.
● Always fasten the outside covering of the connection cord with cord clamps. (If the
insulator is not clamped, electric leakage may occur.)
● Always connect the ground wire.
(4). Electric wiring between the indoor and outdoor units
Refer to the Installation Manual of the controller for more details.
N
2
3
N(1)
L
N
L
POWER
INDOOR UNIT
OUTDOOR UNIT
yellow-
green
yellow-
green
blue
black brown
blue
brown
Installation of Controllers
Fig.16
Single phase power supply unit:
Three phase power supply unit:
/
OUTDOOR UNIT
/ / 1
1
INDOOR UNIT
/ / / 1
POWER
yellow-
blue
black brown
blue
brown
violet
(gray)
black
green
yellow-
green
Fig.17
