Haier MRVIII-S AV08NMSETA Design, Installation & Maintenance Instruction page 59

Indoor power source and communication wiring
Item Power
Indoor cable
total section
2
current (A) (mm )
<10 2
≥10 and <15 3.5
≥15 and <22 5.5
≥22 and <27 10
• Power cable and communication wire must be fi xed fi rmly.
• Each indoor must be grounded well.
• When power cable exceeds the range, increase the gauge appropriately.
• Shielded layer of communication wires must be connected together and be earthed at single
point.
• Communication wire total length cannot exceed 1000m.
Communication wire for wired controller
Wire length(m)
<100 0.3mm
≥100 and <200 0.5mm
0.75mm
≥200 and <300
• Shielded layer of communication wire must be grounded at one end.
• The total length cannot exceed 600m.
Rated Rated current of residual
Wire current of circuit breaker(A)
length overcurrent
(m) breaker
(A) response time(S)
20 20 20A, 30mA, below 0.1s
25 30 30A, 30mA, below 0.1s
30 40 40A, 30mA, below 0.1s
40 50 50A, 30mA, below 0.1s
Wire spec
2
×(3-core) shielded wire ≥300 and <400
2
×(3-core) shielded wire ≥400 and <600
2
×(3-core) shielded
wire
59
Communication wire
Ground fault Outdoor/
interruptor(mA) indoor
(mm
2-core × (0.75-2.0mm
Wire length(m)
1.25mm
2mm
section
Indoor/
indoor
2 2
) (mm )
2
)
shielded wire
Wire spec
2
×(3-core) shielded
wire
2
×(3-core) shielded
wire