20
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Commissioning
Installer and user reference guide
134
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1A – 2020.10
Completion
Description
Abnormal
completion
Indication of malfunction code on the 7‑segment display.
Refer to
"Correcting after abnormal completion of the
134] to take actions for correcting the
abnormality. When the test operation is fully completed,
normal operation will be possible after 5 minutes.
20.4.4 Correcting after abnormal completion of the test run
The test operation is only completed if there is no malfunction code displayed. In
case of a displayed malfunction code, perform correcting actions as explained in
the malfunction code table. Carry out the test operation again and confirm that the
abnormality is properly corrected.
INFORMATION
If a malfunction occurs:
▪
In case of 5 HP: The error code is displayed on the user interface of the indoor
unit.
▪
In case of 8 HP: The error code is displayed on the compressor unit's 7‑segments
display and on the user interface of the indoor unit.
INFORMATION
Refer to the installation manual of the indoor unit for detailed malfunction codes
related to indoor units.
20.4.5 Operating the unit
Once the units are installed and test operation of compressor unit, heat exchanger
unit and indoor units is finished, the operation of the system can start.
For operating the indoor unit, the user interface of the indoor unit should be
switched ON. Refer to the indoor unit operation manual for more details.
