York YHKMXH009BARR-FX Service Manual page 48

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4. Wiring method of indoor unit
Loosen wire cover and connect the power line and communication wire of indoor unit to the terminal correspondingly.
Note:
When connecting power line to power supply terminal, please pay attention to the following items:
Do not connect the power line with different dimensions to the same connection wire end.
Improper contact will cause heat generation.
Do not connect the power line with different dimensions to the same grounding wire end.
Improper contact will affect protection.
Do not connect the power line to the connecting end of communication wire.
Incorrect connection will cause damage to the connected unit.
5. Example wiring diagram.
Wiring diagram please refers to
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Wire cover A
Wire cover C
Wire cover B Terminal block
Valve cover
–¨ 0 25.40
YJU4YH025BARRA-X
-47-
Wire cover A Wire cover C Terminal block
Wire cover D
Wire cover B Wire cover E
Valve cover
YCZ-A001
YCZ-A003