GMV Heat Recovery DC Inverter VRF
42
accordance with local laws, regulations and corresponding instructions. All parts, materials
and electrical operations provided must comply with local regulations.
(2) The unit must be reliably grounded, with grounding resistance smaller than 4Ω.
(3) The special power supply for air conditioning unit must be used, and the power supply
specifications must be consistent with the rated power supply of the unit.
(4) The power cord must be reliably secured. It is forbidden to pull the power cord forcibly to
prevent the wiring terminal from being stressed; if the length of power cord is insufficient or
the power cord is damaged, it is forbidden to connect two power cords together. Please apply
a new power cord that meets the local regulations.
(5) The unit must be equipped with the circuit breaker and the electric leakage protection device.
The circuit breaker should have both magnetic tripping and thermal tripping functions.
(6) It is forbidden to take power from the inside of the unit, which may cause fire hazard.
(7) When wiring on site, please also refer to the circuit diagram attached on the unit. Before all
electrical installations are completed, it is forbidden to put through the power supply (circuit
breaker and electric leakage protection device on the circuit).
3.8.2 Electrical Parameters
Every unit should have corresponding short-circuit and overload protection. And also a main
switch is required to control power supply or disconnection. See Fig.3.8.1.
Fig.3.8.1
Please refer to the following table for outdoor unit power cord specifications and circuit breakers.
Model
Combination
method
Power spec
breaker of each
combination
Minimum cross-
sectional area of
grounding wire
2
Recommended wire
(cross-sectional area)
(mm
2
)
VQ224WM/C-
—
380-415V
3N
～
50/60Hz
25 2.5
2.5
×
5
VQ280WM/C-
—
380-415V
3N
～
50/60Hz
25 2.5
2.5
×
5
VQ335WM/C-
—
380-415V
3N
～
50/60Hz
25 4.0
4.0
×
5
VQ400WM/C-
—
380-415V
3N
～
50/60Hz
40 6.0
6.0
×
5
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