Daikin CO2 Conveni-pack LRYEN10A7Y1 Installer And User Reference Manual page 14

3 | Specific installer safety instructions
Installer and user reference guide
14
NOTICE
Serious injury and/or damage can result from blow off of the liquid receiver safety
valve (see "26.2 Piping diagram: Outdoor
▪
NEVER service the unit when the pressure at the liquid receiver is higher than the
set pressure of the liquid receiver safety valve (86 bar g±3%). If this safety valve
releases refrigerant, it can cause serious injury and/or damage.
▪
If the pressure > set pressure, ALWAYS discharge from pressure relief devices
before servicing.
▪
It is recommended to install and secure blow off piping to the safety valve.
▪
Remove the refrigerant before altering the safety valve position.
NOTICE
Adverse effects shall be considered. For example, danger of water collecting and
freezing in discharge pipes for pressure relief devices, accumulation of dirt and
debris, or blockage of the discharge pipes by solid CO
INFORMATION
Instructions on how to fix the unit in a correct way can be found in
4
installation" [
Refrigerant piping installation (see
NOTICE
During brazing or welding, refrigerant shall be removed from parts of the system
affected by the heat from brazing or welding. It is recommended that such
components are shipped without refrigerant charge.
WARNING
▪
ONLY use R744 (CO
accidents.
▪
When installing, charging refrigerant, maintaining or performing service, ALWAYS
use personal protective equipment, such as safety shoes, safety gloves and safety
glasses.
▪
If the unit is installed indoors (for example, in a machine room), ALWAYS use a
portable CO
▪
If the front panel is open, ALWAYS beware of the rotating fan. The fan will
continue rotating for a while, even after the power switch has been turned off.
CAUTION
Do NOT reuse piping from previous installations.
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.
unit" [
50].
"16 Piping
) as refrigerant. Other substances may cause explosions and
2
detector.
2
4
132]):
(R744).
2
4
installation" [ 64])
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08
"15 Unit