Haier 3U19FS1ERA Manual De Instalación página 15

Wiring work
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 5U34HS1ERA
Wire cover A Wire cover C
Wire cover B Terminal block
Valve cover
13
Wire cover A Wire cover C Terminal block
Wire cover D
Wire cover B Wire cover E
Valve cover
YCZ-A003