Panasonic U-72MF1U9 Technical Data Manual page 39

3. Electrical Wiring
3-3. Wiring System Diagram
L1
Power supply
L2
208 / 230V, 60Hz, 1-PH
Ground
Remote
Controller
WHT
1 1
BLK
2 2
L1
Power supply
L2
208 / 230V, 60Hz, 1-PH
Ground
Remote
Controller
WHT
1 1
BLK
2 2
Group control:
L1
Power supply
L2
208 / 230V, 60Hz, 1-PH
Ground
K1 Type
L1
Power supply
L2
208 / 230V, 60Hz, 1-PH
Ground
Remote
Controller
BLK
2
WHT 1
CONNECTOR
2P(WHT)
NOTE
(1) Refer to Section 2 "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 "TEST RUN." Address setting can be
executed by remote controller automatically.
Indoor
unit (No. 1)
*
L1
L2
U1
U2
B
R1
R2
A
Indoor
unit (No. 2)
*
L1
L2
U1
U2
B
R1
R2
A
Indoor
unit (No. 3)
*
L1
L2
U1
C
U2
R1
R2
A
Indoor
unit (No. n)
*
L1
L2
BLK
U1
WHT U2
B
BLK BLK
3
WHT WHT 1
Outdoor unit
INV unit
A
L1
1
L2
2
L3
3
4
Inter-outdoor unit control wiring
D
Outdoor unit
INV unit
L1
L2
3
L3
4
* NOTE:
Disconnect Switch may be needed by the
National/Local code.
ALWAYS COMPLY WITH NATIONAL AND
LOCAL CODE REQUIREMENTS.
Outdoor Unit
4P terminal board
L1 L2 L3
Indoor Unit
U1, E1 Types
7P terminal board
1(L1) 2(L2) U1 U2 R1 R2
Power Unit Remote
supply control control
Line Line
K1 Type
Model : S-07MK1U6
S-09MK1U6
S-12MK1U6
5P terminal board
1 2 U1 U2
(L1) (L2)
Power Unit
supply control
Line
2 - 25
Design of 3WAY VRF SYSTEM
*
L1
Power supply
L2
208 / 230V, 60Hz, 3-PH
L3
Ground
*
L1
Power supply
L2
208 / 230V, 60Hz, 3-PH
L3
Ground
*
Disconnect switch
(Field Supply)
4P terminal board
1 2 3 4
Inter-unit Inter-outdoor
control unit control
wiring wiring
Y1, D1, T1, F1, M1, P1, R1 Types
6P terminal board
L1 L2 U1 U2 R1 R2
Power Unit Remote
supply control control
Line Line
K1 Type
Model : S-18MK1U6
S-19MS1U6
S-24MK1U6
5P terminal board
1 2 U1 U2
(L1) (L2)
Power Unit
supply control
Line
1
2
3
4
5
6
7
8