Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
178
20～16A
20
2.5
2.5
32～20A
32
4.0
4.0
40～32A
40
6.0
6.0
50～40A
50
10.0
10.0
63～50A
63
16.0
16.0
80～63A
80
25.0
16.0
100～80A
100
35.0
16.0
125～100A
125
50.0
25.0
The breaker capacity and power cable specifications when a circuit breaker is installed on
each indoor unit independently.
IDU model
Capacity of circuit
breaker (A)
Min. sectional area of
grounding wire (mm
2
)
Min. sectional area of
power cable (mm
2
)
Wall-mounted type
6
1.0
1.0
Duct type(pure heat
pump)
6
1.0
1.0
Cassette type(pure heat
pump)
6
1.0
1.0
One-way cassette
6
1.0
1.0
If the IDU is with auxiliary electric heating, please select the capacity of circuit breaker
according to the capacity of auxiliary electric heater. Please refer to the following table.
IDU model (with auxiliary electric
heater)
Capacity of circuit
breaker (A)
Min. sectional area
of grounding wire
(mm
2
)
Min. sectional area
of power cable (mm
2
)
22, 25, 28, 32, 36 duct type unit
6
1.0
1.0
40, 45, 50 duct type unit
10
1.0
1.0
56, 63, 71, 80 duct type unit
16
1.5
1.5
90, 100, 112, 125, 140 duct type unit
10
1.0
1.0
28, 36, 45, 50 cassette type unit
6
1.0
1.0
56, 63, 71, 80 cassette type unit
10
1.0
1.0
90, 112, 125, 140 cassette type unit
6
1.0
1.0
Note:
① The circuit breaker and power cable specifications are selected based on the maximum
power (maximum current) of the units.
② The power cable specifications are obtained under the conditions that the ambient
temperature is 40°C, the working temperature of multi-core copper cable (for example, YJV cable)
is 90°C, and the cable is exposed in cable troughs. In different applications, adjust the
specifications based on national standards.
③ Only copper cable can be used.
④ The sectional area of a wire is applicable for a distance range of up to 15 m. If the distance
is greater than 15 m, increase the sectional area of the wire correspondingly to prevent the wire
from being burned due to overload current and to avoid fire.
⑤The circuit breaker specifications are obtained under the conditions that the ambient
temperature is 40°C when the circuit breaker is working. In different applications, adjust the
specifications based on the circuit breaker manual.
⑥ The circuit breaker must support magnetic release and thermal release at the same time
to protect the system from short circuit and overload.