6
ELECTRIC WIRING
Power supply specifications
• Power supply specifications of outdoor unit
Select the power supply cabling and fuse of each outdoor unit from the following specifications:
Cable 5-core, in conformance with Design 60245 IEC 66
• Do not connect the outdoor units by crossing outside of them, but connect them via the incorporated terminal
block (L1, L2, L3, N).
Electrical wiring design
3-phase
50Hz 380-415V
or
60Hz 380V
Earth leakage breaker
hand switch
Outdoor
power source
Indoor
power source
Single phase
50Hz 220-240V
or
60Hz 220V
Earth leakage breaker
power switch
Model
Outdoor power supply
MMY-AP • • • T8, HT8
3phase, 380–415 V, 50Hz
MMY-AP • • • HT7
3phase, 380 V, 60Hz
• Unit capacities and power supply wire sizes (Reference)
MAP0501T8
MAP0501HT8
MAP0601T8
MAP0601HT8
MAP0801T8
MAP0801HT8
MAP1001T8
MAP1001HT8
MAP1201T8
MAP1201HT8
• Determine the wire size for indoor unit according to the number of connected indoor units downstream.
• Observe local regulation regarding wire size selection and installation.
Outdoor power supply
3-phase 380V–415, 50Hz
380V, –41560Hz
Earth
Model
MMY-
MAP0501HT7
MAP0601HT7
MAP0801HT7
MAP1001HT7
MAP1201HT7
L1 L2 L3
L1 L2 L3
N
N
Pull box
Power supply wiring
Wire size
3.5 mm² (AWG #12) Max. 26 m
3.5 mm² (AWG #12) Max. 26 m
3.5 mm² (AWG #12) Max. 20 m
5.5 mm² (AWG #10) Max. 28 m
5.5 mm² (AWG #10) Max. 27 m
3
L1 L2 L3
L1 L2 L3
N
N
Field fuse
20 A
20 A
30 A
30 A
30 A