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VRV model compatibility topic
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Unit related topic
[Q-301]
All parameters persist on same value (do not change at all)
[Cause]
Checker records operation data received from VRV units, but if no communication data comes, the last
parameters which was correctly received are recorded instead of blank, - - , or 00. Thus if there is no data is
available due to disconnected wiring or electric interference, same value (last correctly received data) is
recorded after this point.
[Countermeasure]
Check and correct D3-NET wiring.
[Q-302]
Even if an error code is indicated on the remote controller such as L5 (inverter overcurrent), checker does not
show the corresponding error code. There are no inverter retry (stand-by).
[Cause]
Normally L5 (inverter overcurrent) error immediately stops compressor, then the direct cause of L5 error
disappear and error status will be automatically reset. Like this kind of instantaneous state error codes,
remote controller retains the error code even the error status itself will be removed. But checker dose not
have such a function (retaining instantaneous error code until user reset operation), so these error codes
cannot be captured.
[Countermeasure]
It is not possible to make checker to do same behavior as remote controller does due to technical difficulties
(timing of cancellation of error status differs from model/series). Please check them by the other parameters
such as inverter current value or others.
AS0112-P-DENV
54
[Q-402]
In map mode screen, outdoor unit icon is displayed but no operations data is shown. Besides outdoor unit
icon remains white and would not change to the other colors.
[Cause]
Operation data cannot be displayed because the software cannot recognize the outdoor unit. Outdoor unit
data format differs from model/series which requires update of checker software to collect operation data.
Therefore if connected outdoor unit is not supported yet, checker software can recognize it as an outdoor
unit but it cannot recognize model information and collect operation data.
[Countermeasure]
Software update to the version which supports connected model or later. Please refer to the supported
model list.
https://daikin-p.ru
