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Maintenance and service
Installer and user reference guide
23
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
7 Maintenance and service
In this chapter
7.1 Precautions for maintenance and service
CAUTION
16] to acknowledge all related safety instructions.
NOTICE
NEVER inspect or service the unit by yourself. Ask a qualified service person to
perform this work.
NOTICE
Maintenance MUST be done by an authorised installer or service agent.
We recommend performing maintenance at least once a year. However, applicable
legislation might require shorter maintenance intervals.
Following symbols may occur on the indoor unit:
Symbol
Explanation
Measure the voltage at the terminals of main circuit capacitors or
electrical components before servicing.
7.2 Periodic check of the ventilated enclosure
In case a ventilated enclosure is used as a safety measure for the BS unit, the
installer or service agent has to check the airflow rate periodically to confirm that it
still meets the legal requirements.
7.3 About the refrigerant
CAUTION
16] to acknowledge all related safety instructions.
This product contains fluorinated greenhouse gases. Do NOT vent gases into the
atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
