Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 896

FDC-HKX
19.5.5 Electric wiring
(1) Power supply wiring
(a) Outdoor unit power supply
• Use separate power supplies for the outdoor and indoor unit respectively. (Standard specification)
• The table below shows the power specification for outdoor unit only.
Item
Power
source
Model
FDC140 type
3 phase
380/415V
FDC224 type
50Hz
FDC280 type
Notes (1) The above table shows the power specification of outdoor unit when separate powers are use for outdoor unit and indoor units.
(2) The wire thickness and distance indicated above are for when voltage drop is 2%.
(b) Indoor unit power supply
Indoor unit
Total power
Less than 10A
supply for
10A or more,
indoor unit
less than 15A
Notes (1) The wire length covers values when necessary indoor units are connected in series with the unit power supply wire as shown below. Also, the wire
thickness and distance indicated above are for when voltage drop is 2%.
(2) These values are based on the conditions that indoor units are connected so that the total capacity becomes the mximum against each outdoor unit.
894
Power
Wire
supply
length
wire size
(m)
(mm 2 )
3.5 38
5.5 46
8.0 47
Item
Power
Wire
supply
length
wire size
(m)
current
2
(mm )
2 23
3.5
27
Earth leakage
breaker
Circuit breaker
r
2
r
1
Circuit breaker
Switch Reted
capacity current
(A) (A)
30 25
40 30
60 50
Wire circuit breaker (A)
Circuit breaker
Rated
(Use for both ground/overload
and short-circuit production)
20 20A100mA 0.1 sec. or less
30 30A100mA 0.1 sec. or less
Power supply wire
r
r
2 4
Grounding
Earth
wire size
leakage
2
(mm )
breaker
(A)
30A 30mA
2.0
0.1 sec. or less
40A 100mA
2.0
0.1 sec. or less
60A 100mA
3.5
0.1 sec. or less
Signal wire thickness (mm)
Outdoor Indoor
· Indoor · Outdoor
2 core 2 core
x x
0.75 · 2.0 0.75 · 2.0