GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
10
Circuit
breaker
capacity
(A)
Circuit breaker
capacity for
combined units
(A
)
Wire size of
power supply
(mm
2
)
Wire size of combined
uni (mm
2
)
For information about the leakage circuit breaker for an indoor unit, refer to the following table. The
circuit breaker capacities listed in the following table indicate the circuit breaker capacities when all
indoor units in the same syatem are connecting connected to the main power.
Total Current Capacity of
Indoor Units
Circuit Breaker
Capacity (A)
Minimum Sectional Area (mm²)
of Power Cable
Minimum Sectional Area (mm²) of
Grounding Wire
Table B: The breaker capacity and power cable specifications when a circuit breaker is installed on
each indoor unit independently. Note that the circuit breaker of the indoor unit is used only for
short-circuit protection and abnormal overload of the corresponding indoor unit. Usually, the circuit
breaker is off. All circuit breaker terminals must be connected to one main power switch, which is used to
cut off the power of all indoor units.
Minimum Sectional Area of
Power Cable (mm
2
)
Minimum Sectional Area of
Grounding Cable (mm
2
)
Low-static-pressure Air-duct-type Air
Conditioner
All-dimensional Ceiling Cassette Type
Air Conditioner
Single-side Air Outlet Ceiling Cassette
Type Air Conditioner
Wall mounted type Air Conditioner
Static-pressure Air-duct-type Air
Conditioner
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