Loading ...
Loading ...
Loading ...
16
6. Electrical work
6.4. Wiring of main power supply and equipment capacity
Schematic Drawing of Wiring: When Not Using a Branch Box (Example) (Fig. 6-5)
Schematic Drawing of Wiring: When Using a Branch Box (Example) (Fig. 6-6)
Note:
The CITY MULTI series indoor unit cannot receive power
supplied from an outdoor unit, so provide it with power
separately.
Fig. 6-5
E E
F
A
E E
208/230 V AC
60 Hz
208/230 V AC
60 Hz
A
B
GR
Thickness of Wire for Main Power Supply and On/Off Capacities
<Whenpowerissuppliedseparately>
Model
Power Supply
Minimum Wire Thickness
(mm
2
[AWG])
Breaker for
Wiring*1
Breaker for Current Leakage
(if you use)
Minimum circuit
ampacity
Maximum rating of over
current protector device
Main Cable*2 Ground
Outdoor Unit
36/48NAM
208/230 V AC,
60 Hz
5.3 [AWG10] 5.3 [AWG10] 30 A 30 A 30 mA 0.1 sec. or less 29 A
40 A
36/42/48NAMHZ 8.4 [AWG8] 8.4 [AWG8] 40 A 40 A 30 mA 0.1 sec. or less 36 A
40 A
60NAM 8.4 [AWG8] 8.4 [AWG8] 40 A 40 A 30 mA 0.1 sec. or less 36 A
45 A
Branch Box Refer to installation manual of Branch Box.
<Whenpowerissuppliedfromtheoutdoorunit>
Model
Power Supply
Minimum Wire Thickness
(mm
2
[AWG])
Breaker for
Wiring*1
Breaker for Current Leakage
(if you use)
Minimum circuit
ampacity
Maximum rating of over
current protector device
Main Cable*2 Ground
Outdoor Unit
36/48NAM
208/230 V AC,
60 Hz
8.4 [AWG8] 8.4 [AWG8] 40 A 40 A 30 mA 0.1 sec. or less 35 A
50 A
36/42/48NAMHZ 13.3 [AWG6] 13.3 [AWG6] 45 A 45 A 30 mA 0.1 sec. or less 42 A
50 A
60NAM 13.3 [AWG6] 13.3 [AWG6] 50 A 50 A 30 mA 0.1 sec. or less 46 A
50 A
Branch Box Refer to installation manual of Branch Box.
*1. Please follow applicable federal, state, or local codes to prevent potential leakage/electric shock. Or install a ground fault interrupt for the prevention of leakage and
electric shock.
IMPORTANT
If a current leakage breaker is used, it should be compatible with higher harmonics as this unit is equipped with an inverter. The use of an inadequate breaker
can cause the incorrect operation of inverter.
*2. Use copper supply wires. Use the electric wires over the rating voltage 300 V.
A Switch (Breakers for Wiring and Current Leakage (if you use))
B Outdoor Unit
C Branch Box
D A-Control indoor unit (M, S, P series indoor unit)
E CITY MULTI series indoor unit
F Pull Box
Fig. 6-6
L1/L2
S1/S2/S3
S1/S2/S3
S1/S2/S3
L1/L2
S1/S2/S3
S1/S2/S3
S1/ S2/ S3
A
C
D
C
D
D
D
D
F
B1/B2
GR
L1/L2
L1/L2
L1/L2
D
D
D
D
D
C
C
B
A
S1/S2/S3
S1/S2/S3
S1/S2/S3
S1/S2/S3
S1/S2/S3
S1/S2/S3
208/230 V AC, 60 Hz
L1/L2
GR
A
B
<WhenPowerIsSuppliedSeparately>
208/230 V AC, 60 Hz
208/230 V AC, 60 Hz
<WhenPowerIsSuppliedfromtheOutdoorUnit>
en
RG79F368H04_01en.indd 16 2022/02/09 16:17:22
017
Loading ...
Loading ...
Loading ...