Wiring System Diagram - Panasonic U-72MF2U9 Technical Data Manual

3. ELECTRICAL WIRING

3-3. Wiring System Diagram

Power supply
208 / 230V, 60Hz, 1-PH
Remote
Controller
WHT
1 1
BLK
2 2
Power supply
208 / 230V, 60Hz, 1-PH
Remote
Controller
1
WHT
1 1
BLK
2 2
Group control:
Power supply
208 / 230V, 60Hz, 1-PH
2
3
Power supply
208 / 230V, 60Hz, 1-PH
Remote
4
Controller
BLK
1 1
WHT
2 2
5
NOTE
(1) See the section "3-2. Recommended Wire Length
and Wire Diameter for Power Supply System" for the
6
explanation of "A", "B", "C" and "D" in the above diagram.
(2) The basic connection diagram of the indoor unit shows
the 6P terminal board, so the terminal boards in your
equipment may differ from the diagram.
(3) Refrigerant Circuit (R.C.) address should be set before
7
turning the power on.
(4) Regarding the R.C. address setting, refer to the separated
"SERVICE MANUAL & TEST RUN SERVICE MANUAL
(SM830246)", page 6-7 "5. Auto Address Setting". Address
setting can be executed by remote controller automatically.
8
9
Indoor
unit (No. 1)
*
L1
L1
L2
L2
U1
Ground
U2
B
R1
R2
Indoor
unit (No. 2)
*
L1
L1
L2
L2
Ground
U1
U2
B
R1
R2
Indoor
unit (No. 3)
*
L1
L1
L2
L2
U1
Ground
C U2
R1
R2
Indoor
unit (No. n)
*
L1
L1
L2
L2
U1
Ground
U2
B
R1
R2
Outdoor unit
INV unit
A
L1
U1
L2
U2
L3
1
2
A
D
Inter-outdoor unit control wiring
Outdoor unit
INV unit
L1
L2
1 L3
2
A
* NOTE:
Disconnect Switch may be needed by the
National/Local code.
ALWAYS COMPLY WITH NATIONAL AND
LOCAL CODE REQUIREMENTS.
A
control wiring
30
2 - 22
Design of 3WAY VRF SYSTEM
*
L1
Power supply
L2
208 / 230V, 60Hz, 3-PH
L3
Ground
*
L1 Power supply
208 / 230V, 60Hz, 3-PH
L2
L3
Ground
* Disconnect switch
(Field Supply)
3P terminal board
L1 L2 L3
2P terminal board (×2)
U1 U2 1 2
Inter-unit Inter-outdoor unit
control wiring
Outdoor Unit