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Commissioning
Installer and user reference guide
118
LRYELRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08
21.5.2 Correcting after abnormal completion of the test run
The test operation is only completed if there is no malfunction code displayed on
the user interface or outdoor unit 7‑segment display. 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.
CAUTION
After the refrigerant is fully charged, do NOT turn off the operation switch and power
supply of the outdoor unit. This prevents the safety valve actuation due to an
increase in internal pressure under high ambient temperature conditions.
When internal pressure rises, the outdoor unit can operate by itself to reduce the
internal pressure, even if no indoor unit is operating.
INFORMATION
Refer to the installation manual of the indoor unit for detailed malfunction codes
related to indoor units.
21.6 Operating the unit
Once the unit is installed and test operation of outdoor 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.
21.7 Logbook
In accordance with the applicable legislation, the installer must provide a logbook
upon installation of the system. The logbook shall be updated following any
maintenance or repair of the system. In Europe, EN378 provides the necessary
guidance for this logbook.
Content of the logbook
The following information must be provided:
▪
Details of the maintenance and repair works
▪
Quantities and kind of (new, reused, recycled, reclaimed) refrigerant which have
been charged on each occasion
▪
Quantities of refrigerant which have been transferred from the system on each
occasion
▪
Results of any analysis of a reused refrigerant
▪
Source of reused refrigerant
▪
Changes and replacements of components of the system
▪
Results of all periodic routine tests
▪
Significant periods of non-use
Furthermore, you can add:
▪
Instructions for shutting down the system in case of an emergency