Sanyo ECO-i AHX0752 Technical Data Manual page 35

3. Electrical Wiring
3-3. Wiring System Diagram
Power supply
208 / 230V, 1ø, ~60Hz
Remote
controller
WHT
1 1
BLK
2 2
Power supply
208 / 230V, 1ø, ~60Hz
Remote
controller
WHT
1 1
BLK
2 2
Group control:
Power supply
208 / 230V, 1ø, ~60Hz
Power supply
208 / 230V, 1ø, ~60Hz
Remote
controller
WHT
1 1
BLK
2 2
NOTE
(1) Refer to Section 3-2. "Recommended Wire Length and
Wire Diameter for Power Supply System" for the
explanation of "A," "B," "C," and "D," in the above
diagram.
(2) The basic connection diagram of the indoor unit shows
the 7P terminal board, so the terminal boards in your
equipment may differ from the diagram.
(3) Refrigerant Circuit (R.C.) address should be set before
turning the power on.
(4) Regarding the R.C. address setting, refer to Section 5.
Address setting can be executed by remote controller
automatically. Refer to Section 5.
Indoor
unit (No. 1)
*
L1
L1
L2
L2
Ground
U1
U2
B
R1
R2
Ground
Indoor
unit (No. 2)
*
L1
L1
L2
L2
Ground
U1
U2
B
R1
R2
A
Ground
Indoor
* unit (No. 3)
L1
L1
L2
L2
Ground
U1
C
U2
R1
R2
A
Indoor
*
unit (No. n)
L1
L1
L2
L2
Ground
U1
U2
B
R1
R2
Design of W-3WAY ECO-i SYSTEM Unit Specifi cations
Outdoor unit
INV unit
A
1
U1
2
U2
3
4
3
Ground Ground
5
4
Ground
A
Ground
D Inter-outdoor-unit control wiring
Ground
Outdoor unit
INV unit
1
2
3
3
Ground
4
4
5
Ground
* NOTE:
Disconnect Switch may be needed by the
National/Local code.
Ground
ALWAYS COMPLY WITH NATIONAL AND
LOCAL CODE REQUIREMENTS.
Ground
X, U, D Types
A, T, M Types
K Type
2-25
*
L1
Power supply
L2
208 / 230V, 3ø, ~60Hz
L3
Ground
*
L1
Power supply
L2
208 / 230V, 3ø, ~60Hz
L3
Ground
* Disconnect switch
(Field Supply)
7P terminal board
1(L1) 2(L2) U1 U2 R1 R2
Power
Inter-unit Remote
supply
control wiring controller
6P terminal board
L N U1 U2 R1 R2
POWER
UNIT CONTROL REMOTE
SUPPLY LINE CONTROL
LINE
5P terminal board
1 2 3 4 5
1(L1) 2(L2)
U1 U2
Power Inter-unit
supply control wiring
1
2
3
4
5
6
7
8