Daikin SV1A25AJV1B - Page 14

3 | Specific installer safety instructions
Installer and user reference guide
14
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
CAUTION
If the metal duct passes through a metal lath, wire lath or metal plate of the wooden
structure, separate the duct and wall electrically.
Refrigerant piping installation (see
"15Piping installation"[
4
80]
)
DANGER: RISK OF BURNING/SCALDING
WARNING
Field piping MUST be in accordance with the instructions from this manual. See
"15Piping installation"[480].
CAUTION
Piping MUST be installed according to instructions given in "15 Piping
installation" [4 80]. Only mechanical joints (e.g. braze+flare connections) that are
compliant with the latest version of ISO14903 can be used.
Low temperature solder alloys shall not be used for pipe connections.
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.