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Specific installer safety instructions
3 Specific installer safety instructions
Installer reference guide
16
Always observe the following safety instructions and regulations.
Unit installation (see
"6 Unit
WARNING
Installation shall be done by an installer, the choice of materials and installation shall
comply with the applicable legislation. In Europe, EN378 is the applicable standard.
"6.1 Preparing the installation
Installation site (see
CAUTION
▪
Check if the installation location can support the unit's weight. Poor installation is
hazardous. It can also cause vibrations or unusual operating noise.
▪
Provide sufficient service space.
▪
Do NOT install the unit so that it is in contact with a ceiling or a wall, as this may
cause vibrations.
WARNING
The appliance shall be stored in a room without continuously operating ignition
sources (example: open flames, an operating gas appliance or an operating electric
heater).
Connecting the refrigerant piping (see
4
piping" [
34])
CAUTION
▪
No brazing or welding on site for units with R32 refrigerant charge during
shipment.
▪
During installation of the refrigeration system, joining of parts with at least one
part charged shall be performed taking into account the following requirements:
inside occupied spaces non-permanent joints are NOT allowed for R32 refrigerant
except for site made joints directly connecting the indoor unit to piping. Site
made joints directly connecting piping to indoor units shall be of non-permanent
type.
NOTICE
▪
Use the flare nut fixed to the unit.
▪
To prevent gas leakage, apply refrigeration oil ONLY to the inside of the flare. Use
refrigeration oil for R32 (FW68DA).
▪
Do NOT reuse joints.
NOTICE
▪
Do NOT use mineral oil on flared part.
▪
Do NOT reuse piping from previous installations.
▪
NEVER install a drier to this R32 unit to guarantee its lifetime. The drying material
may dissolve and damage the system.
4
installation" [
25])
site" [
"7.2 Connecting the refrigerant
4
25])
R32 split series
4P751614-2 – 2023.09
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