8
Air to Water Heat Pump
Service Manual- Versati II Series
PRODUCT
4�3 Electrical Data
Model
Power Supply Leakage Switch
Minimum Sectional
Area of Earth Wire
Minimum Sectional Area
of Power Supply Wire
V,Ph,Hz (A) (mm
2
) (mm
2
)
GRS-CQ12Pd/NaB-K(I)
220-240V,~,50Hz
50 10 3×10
GRS-CQ14Pd/NaB-K(I) 50 10 3×10
GRS-CQ16Pd/NaB-K(I) 50 10 3×10
GRS-CQ12Pd/NaB-K(O) 32 4 3×4
GRS-CQ14Pd/NaB-K(O) 32 4 3×4
GRS-CQ16Pd/NaB-K(O) 32 4 3×4
Note:
①
Leakage Switch is necessary for additional installation. If circuit breakers with leakage protection are in
use, action response time must be less than 0.1 second, leakage circuit must be 30mA.
②
The above selected power cable diameters are determined based on assumption of distance from the
distribution cabinet to the unit less than 75m. If cables are laid out in a distance of 75m to 150m, diameter of
power cable must be increased to a further grade.
③
The power supply must be of rated voltage of the unit and special electrical line for air-conditioning.
④
All electrical installation shall be carried out by professional technicians in accordance with the local
laws and regulations.
⑤
Ensure safe grounding and the grounding wire shall be connected with the special grounding equipment
of the building and must be installed by professional technicians.
⑥
The specications of the breaker and power cable listed in the table above are determined based on the
maximum power (maximum amps) of the unit.
⑦
The specications of the power cable listed in the table above are applied to the conduit-guarded multi-
wire copper cable (like, YJV XLPE insulated power cable) used at 40
℃
and resistible to 90
℃
(see IEC 60364-5-
52). If the working condition changes, they should be modied according to the related national standard.
⑧
The specications of the breaker listed in the table above are applied to the breaker with the working
temperature at 40
℃
. If the working condition changes, they should be modied according to the related national
standard.