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Wi-Fi control may be setup on one of the controllers only. There is no polarity
between HA and HB (Figure 8).
DO NOT allow water to enter the wired control. Use the trap and
putty to seal the wires. Connecting wires must be fixed reliably
and cannot be pulled.
NOTE
For some units, one wired controller can support multiple units (maximum of
16 units). For configuration of multiple indoor units loom connection is polarity
sensitive and HA must connect to HA on all indoor units, the same applies to HB.
In group control, there will be no error displayed on the wired controller (Figure 9).
Rinnai
Maximum 40m
Figure 8.
13
Earth the
shield
Maximum
40m
DRCi R32 Wired Controller OIM
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