DC Inverter Cassette Type Air Conditioner  Installation and Operation Manual
59
Table 6 The model selection recommend table for air switch and power cable.
Model Power Supply
Capability of 
Air Switch
Minimum Sectional 
Area of Earth Wire
Minimum Sectional 
Area of Power 
Supply Wire
(A) (mm
2
) (mm
2
)
220-240V~ 
50Hz
20/6.0
4.0/1.0 4.0/1.0
ASGE-18AIA WK+ASC-18AIA
ASGE-24AIA WK+ASC-24AIA
25/6.0
ASGE-36AIA WK+ASC-36AIA
380-415V
 
3N~
50Hz
16/6.0 2.5/1.0 2.5/1.0
ASGE-36AIA-3 WK+ASC-36AIA
ASGE-42AIA-3 WK+ASC-42AIA
1. The power cable used in the unit is copper cable; the working temperature should not exceed the specied 
value.
2. If the power cable is longer than 15 meters, please enlarge the cross section of power cable adequately, in 
order to avoid the accident due to overload.
3. The specication of power cord mentioned hereby is dened as the required specication when wiring 
with BV single core cable (2 ~ 4 pieces) under the cover of PVC pipe, and environment temperature shall be at 
40°C; Air switch shall be selected according to 40°C temperature condition. If the installation condition on site 
changed, please consider the modication on the required specication of Power cord and Air switch, according 
to the specication manual provided by manufacturer.
Requirement for ground:
①
Air conditioner is the I class electric appliance, thus please do conduct reliable grounding measure.
②
The yellow-green two-color wiring of air conditioner is grounding wire and cannot be used for other 
purposes. It cannot be cut off and be xed by screw, otherwise it would cause electric shock.
③
The  user must offer the  reliable  grounding  terminal. Please don’t connect  the grounding wire to the 
following places:
 ● Water pipe;
 ● Gas pipe;
 ● Blowing pipe;
 ● Other places that professional personnel consider them unreliable.
④
The power cable, communication wire connection between indoor and outdoor.
⑤
The section area of cables selected by users must not be smaller than the specications show diagram. 
The signal wire between indoor and outdoor unit shall be installed in the shielded bushing.