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Notices for installation
Earthing requirements
Others
The model of the blown fuse and rated value should refer to the silk-screen on the
controller or fuse sleeve.
The connection method of unit and power cable as well as the interconnect method
of each isolated component should refer to the circuit diagram stick on the unit.
Air conditioner is type 1 electric appliance, thus please do conduct reliable earthing
measure.
The yellow-green two-color wire in air conditioner is earthing wire and cannot be used
for other propose. It cannot be cut off and be fixed by screw, otherwise it would cause
electric shock.
The user power must offer the reliable earthing terminal. Please don't connect the
earthing wire with the following place:
①
Tap water pipe
②
Gas pipe
③
Contamination pipe
④
Other places that professional personnel consider them unreliable.
It should be reliably earthed, and it should be connected to the special earth device,
the installation work should be operated by the professional.
The air switch must have the functions of magnetic tripping and heat tripping, in order
to protect the short circuit and overloading.
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The min. distance from the unit and combustive surface is 1.5m.
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The outside static pressure is 0MPa when the unit is testing.
3. The earth resistance should accord to the National Criterion GBI7790.
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The model(GWHN24(12X2)B9NK3BA; GWCN24(12X2)B9NK3BA) can be connected
only to a supply with system impedance no more than 0.388ohm. In case necessary,
please consult your supply authority for system impedance information.
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This product must not be disposed together with the domestic waste.
of electrical and electronic appliances.
This product has to be disposed at an authorized place for recycling
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Safety Requirements For Electric Appliances
The power supply should be used the rated voltage and AC exclusive circuit,
the power cable diameter should be satisfied.
Voltage applying range: the normal running range is rated voltage 90%-110%.
Don't drag the power cable emphatically.
The model(GWHN24(12X2)B9NK2BA) will be connected only to a supply with the
relevant system impedance no more than Zmax= 0.2414
Ω
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6. An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in fixed wiring.
