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3. Installation method
The main/secondary wired controller can be used to enable
two wired controllers to control one unit, and the wired
controllers connect to the unit HA and HB ports through the
HA and HB port on the controller. There is no polarity
between HA and HB. SeeFig. 3-10
Wired Controller 1
NOTE:
Wire controller with Wireless function does not have
this function
For some units, one wired controller can support multiple units
(a maximum of 16 units). In this case, the wired controller and
0
.
Indoor Unit
Wired Controller 2
14
HA HB
1
Fig.3-10
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