3 | Specific installer safety instructions
Installer and user reference guide
18
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
WARNING
▪ Take precautions to avoid excessive vibration or pulsation to refrigeration piping.
▪ Protect the protection devices, piping and fittings as much as possible against
adverse environmental effects.
▪ Provide space for expansion and contraction of long runs of piping.
▪ Design and install piping in refrigerating systems such as to minimise the
likelihood of hydraulic shock damaging the system.
▪ Mount the indoor equipment and pipes securely and protect them to avoid
accidental rupture of equipment or pipes in case of events such as moving
furniture or reconstruction activities.
CAUTION
Do NOT use potential sources of ignition in searching for or detection of refrigerant
leaks.
NOTICE
▪ Do NOT re-use joints and copper gaskets which have been used already.
▪ Joints made in the installation between parts of the refrigerant system shall be
accessible for maintenance purposes.
See "13.3 To determine the required safety measures" [4 45] to check if your
system meets the R32 safety requirements.
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