York EVHC 09 DSAAAR Service Manual page 35

Installation
Safety Requirements For Electric Appliances
1. The power supply should be used the rated voltage and AC exclusive circuit,
the power cable diameter should be satisfied.
2. Don't drag the power cable emphatically.
3. 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.
4. The min. distance from the unit and combustive surface is 1.5m.
5. The appliance shall be installed in accordance with national wiring regulations.
6. An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in fixed wiring.
Note:
Make sure that the Live wire or Zero line as well as the earth wire in the family power
socket can not be wrong connected, there should be reliable and no short circuit in the
diagram.
wrong connection may cause fire.
Earthing requirements
1. Air conditioner is type I electric appliance, thus please do conduct reliable earthing
measure.
2. 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 fix it by screw, otherwise it would cause
electric shock.
3. The earth resistance should accord to the National Criterion.
4. The user power must offer the reliable earthing terminal. Please don't connect the
earthing wire with the following place:
Tap water pipe.
Other places that professional personnel consider them unreliable.
5. The model and rating values for fuses according the silk print on fuse cover or related
PCB board.
Gas pipe.
Contamination pipe.

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