Part 4 Trouble Shooting
- 131 -
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NG NG OK
Purpose
Installation environment interfering
the communication
Items for checking
Check installation error points
ڸ The communication lines of the
indoor /outdoor devices are in-
stalled by wire-to-wire ethod.
: In case of additional connection,
connect the wires with soldering
as shown below.
ڹ Wire tongue-termination fault.
ں The cut section of the wire passes
the insulation tape and causes a
short with another wire.
ڻ Communication noise by oxidized
wire arrangement : Soldering is
required.
Wire-to-Wire
Neutral
Neutral
Installation environment interfering with the communication of
indoor/outdoor devices
6.7 Troubleshooting Outdoor Error
CH 05/53 (Indoor/Outdoor Device Communication Error) → Detection by indoor devices
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