Automatic Address (Between Outdoor Unit And Indoor Unit); Cautions During Automatic Addressing - Toshiba HFCR407C Service Manual

Automatic address (Between outdoor unit and indoor unit)

When turning the power on for the first time after the air conditioner has been installed, automatic address starts.
Usually, the automatic address takes time approx. 3 to 5 minutes after the power is on. However, in some cases, it may take
Max. 20 minutes.

Cautions during automatic addressing

1. The air conditioner cannot be operated.
If pushing the operation button during automatic addressing, the following will occur.
(1) The operation lamp of the remote controller lights.
(2) Indoor unit fan starts or stops according to the operation mode.
(3) The outdoor unit is in 'stop' status.
Therefore, cool air does not discharge from indoor unit.
After automatic address is over, the above condition is released, and normal operation starts automatically.
2. Miswiring check causes misjudgment of automatic addressing
If miswiring is found during automatic addressing, the result is incorrect addressing.
Therefore, check miswiring 20 minutes or more after power was turned on.
3.
When control address of the indoor unit has been fixed, the automatic address is not activated.
However, the automatic address is activated again in the following cases.
(1) When replacing PC board of the indoor unit, and power is turned on for the first time.
(2) When adding a new indoor unit, and power is turned on for the first time.
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Trial operation
Automatic address
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