Haier 1U71S2SG1FA Service Manual page 195

4. Wiring Method of Indoor Unit
Loosen wire cover and connect the power cord and communication wire of indoor unit to the terminal
correspondingly.
Note:
When connecting power cord to power supply terminal, please pay attention to the following items:
• Do not connect the power cord 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.
• The wiring should ensure that the ground line is the last one to be broken off by force.
5. Example wiring diagram.
Wiring diagram please refers to the following.
B
A C
D E
Secure the branch wiring firmly using the 4
Shape the wires so that
included screws, as shown in the figure.
there is no lifting of the
Secure firmly, making sure no outside
service hatch or other
pressure is exerted on the terminals.
structural parts
192
Use the specified
wires and connect
them securely.