MULTI/SINGLE
7. Installation
Installation of Unit
Install the unit above the ceiling correctly.
E
D
C
Chassis
L1
L2
L3
7.3 Connecting cables between Indoor Unit and Outdoor Unit
7.3.1 General instructions
•
All field supplied parts and materials, electric works must conform to local codes. Use copper wire only.
•
Follow the "WIRING DIAGRAM" attached to the unit body to wire the outdoor unit, indoor units and the remote
controller.
•
All wiring must be performed by an authorized electrician.
•
A circuit breaker capable of shutting down the power supply to the entire system must be installed.
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
– Never fail to have separate power specially for the air conditioner.
– Provide a circuit breaker switch between power source and the unit.
– Confirm the Specification of power source.
– Confirm that electrical capacity is sufficient.
– Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the
name plate.
– Confirm that the cable thickness is as specified in the power sources specification.
(Particularly note the relation between cable length and thickness.)
– Do not install the leakage breaker in a place which is wet or moist.
Water or moist may cause short circuit.
– The following troubles would be caused by voltage drop-down.
» Vibration of a magnetic switch, damage on the contact point there of, fuse breaking, disturbance to the
normal function of a overload protection device.
» Proper starting power is not given to the compressor.
16
Indoor unit
J
A
B
A
B
C
733
772
628
933
972
628
1,133
1,172
628
Ceiling concealed duct - Low static pressure
G
Dimension (mm)
D
E
F
700
36
190
700
36
190
700
36
190
H
Drainage hole
G
H
I
20
660
155
20
860
155
20
1,060
155
J
700
900
1,100
