Table of Contents
8-2. SEPARATE INDOOR UNIT/OUTDOOR UNIT POWER SUPPLIES
The following illustrations show available connection patterns.
The outdoor unit power supply patterns vary on models.
The optional indoor power supply terminal kit is required.
Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
If the indoor and outdoor units have separate power supplies, refer to the table below.
Change the indoor unit electrical box wiring referring to the figure in the right and
the DIP switch settings of the outdoor unit control board.
Indoor unit electrical box connector con-
nection change
Label affixed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
Note:
There are 3 types of label; A, B and C.
Affix the appropr iate label(s) to the units according to the wiring method.
Indoor model name
Indoor unit power supply
Minimum circuit ampacity
Maximum rating of overcurrent protective device
Wiring
Indoor unit power supply
Wire No. x
Indoor unit power supply earth
size
Indoor unit-Outdoor unit
Indoor unit earth
Remote controller-Indoor unit
Circuit
Outdoor unit L1-L2
rating
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1. Maximum 165 ft [50 m]
*2. The 30 ft [10 m] wire is attached in the remote controller accessory. Maximum 1500 ft [500 m].
*3. The figures are NOT always against the ground.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Use copper supply wires.
3. Use wires rated 300 V or more for the power supply cables.
4. Install an earth line longer than power cables
OCH754A
1:1 System
C
L1
L2
A
B
G
B
GR
S1
S2
S3
D
E
Simultaneous twin system
C
L1
L2
G
A
B
B
GR
S1
S2
S3
D
E
Indoor unit specifications
Required
Required
ON
3
OFF
1
2
(SW8)
A24
Single, 208/230 V, 60 Hz
SVZ
3.00 A
PEAD
2.63 A
*1
2 × AWG 22 (polar)
*2
2 × AWG 22 (Non-polar)
*3
*3
*3
*3
F
L1
L2
H
GR
S1
S2
S3
1
2
H
F
F
L1
L1
L2
L2
GR
GR
S1
S1
J
S2
S2
S3
S3
1
1
2
2
Connectors (connections when shipped
from the factory are for indoor unit power
supplied from outdoor unit)
L1
L2
GR
CN01
Indoor unit
S1
control board
S2
S3
Indoor unit power supplied from outdoor unit
(Initial setting)
A30
A36
4.13 A
4.13 A
2.73 A
3.3 A
15 A
2 × Min AWG 16
1 × Min AWG 16
-
208/230 VAC
-
24 VDC
12 VDC
18
Outdoor unit power supply
A
Wiring circuit breaker or isolating switch
B
Outdoor unit
C
Indoor unit/outdoor unit connecting cords
D
Remote controller
E
Indoor unit
F
Indoor unit power supply
G
Option
H
Outdoor unit power supply
A
Wiring circuit breaker or isolating switch
B
Outdoor unit
C
Indoor unit/outdoor unit connecting cords
D
Remote controller
E
Indoor unit
F
Indoor unit power supply
G
Option
H
Indoor unit earth
J
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
figure.
Connectors
L1
L2
GR
CN01
Indoor unit
S1
control board
S2
S3
Separate indoor unit/outdoor unit power
supplies
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