5
COM
12V
HB
HA
NOTE - 1. Connect up to 16 indoor units
2. Ground cable shielding at indoor unit
3. All wiring is polarity sensitive
COM
12V
HB
HA
Figure 1. Connect Controller to Single Indoor Unit Wiring Connections
Connecting to One Indoor Unit
Connect the controller to one indoor unit main control board using 4-conductor shielded 18 GA
cable. Connect to terminals 12V,COM,HA,HB. See Figure 1.
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