Daikin VRV 5 RXYA8A7Y1B Installer And User Manual page 169

RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
Code
4 Check the results on the outdoor unit 7‑segment display.
Completion
Normal completion
Abnormal completion
In case group control is implemented over multiple branch ports of the same SV
unit, it is not possible to directly use the built-in automatic check.
a b
c c
d
a Outdoor unit
b SV unit
c Indoor unit
d Remote controller
Refrigerant piping
User interface wiring
To be able to execute the built-in connection check it is required to connect a
spare remote controller to the other branch ports. Each branch port needs a
dedicated remote controller for the built-in automatic connection check to
function.
a b
c c
d
a Outdoor unit
b SV unit
c Indoor unit
d Remote controller
e Spare remote controller
Refrigerant piping
User interface wiring
After successful completion of the check, the spare remote controller can be
removed, and the group control can be restored as wanted. In case group control
is limited to single branch ports no extra actions are needed.
Description
Indoor unit is out of temperature range 20~27°C for SV
connection check.
Outdoor unit is out of temperature range 0~43°C for SV
connection check.
Too low pressure was noticed during SV connection
check. Restart SV/indoor unit connection check.
Indicates an indoor unit is not compatible with this
function.
1 Only a single port SV unit (SV1A) is used in the setup.
2 Only a single port or a combined single port in the
multi SV unit (SV4~8A) is used in the setup
Description
" " on the 7‑segment display.
Indication of malfunction code on the 7‑segment display.
Refer to "22.6.2 Correcting after abnormal completion of
4
the test run" [ 167] to take actions for correcting the
abnormality. When the check is fully completed, normal
operation will be possible after 5 minutes.
c
c
e
22 Commissioning
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Installer and user reference guide
169