Haier AB422XCBAA Service Manual page 109

Pipe connections:
1 TO 4
1 TO 3(except for 21000BTU/h units)
1 TO 2(except for 21000BTU/h units)
Outdoor unit
A1 A2
A1
A2
B1
B2
Outdoor unit
A2
A1
A2
B1
B2
Outdoor unit
A1
A2
B1
B2
Indoor units
B1 B2
Indoor units
B1 B2
Indoor units
A2 B2
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