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Specific installer safety instructions
Installer and user reference guide
11
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
Refrigerant piping installation (see
DANGER: RISK OF BURNING/SCALDING
WARNING
The field piping method MUST be in accordance with the instructions from this
manual. See
WARNING
Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks,
ventilate the area immediately. Possible risks:
▪
Excessive refrigerant concentrations in a closed room can lead to oxygen
deficiency.
▪
Toxic gas might be produced if refrigerant gas comes into contact with fire.
WARNING
During tests, NEVER pressurise the product with a pressure higher than the
maximum allowable pressure (as indicated on the nameplate of the unit).
WARNING
Bent header or branch pipes can lead to refrigerant leakage.
Possible consequence:
asphyxiation, suffocation and fire.
▪
NEVER bend the branch and header pipes sticking out of the unit. They have to
remain straight.
▪
ALWAYS support the branch and header pipes at a distance of 1 m from the unit.
WARNING
Overheated insulation can start to burn.
Possible consequence:
fire.
▪
When performing brazing work header or branch pipes, cool all other header and
branch pipes by wrapping them in wet cloths.
CAUTION
Install the refrigerant piping or components in a position where they are unlikely to
be exposed to any substance which may corrode components containing refrigerant,
unless the components are constructed of materials that are inherently resistant to
corrosion or are suitably protected against corrosion.
NOTICE
▪
Do NOT use mineral oil on flared part.
▪
Do NOT reuse piping from previous installations.
▪
NEVER install a drier to this unit to guarantee its lifetime. The drying material may
dissolve and damage the system.
Electrical installation (see
DANGER: RISK OF ELECTROCUTION
