3 | Specific installer safety instructions
Installer and user reference guide
15
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1 – 2020.01
Connecting the refrigerant piping (see
"18.2Connecting the refrigerant
piping"[481]
)
WARNING
Any gas or oil remaining inside the stop valve may blow off the spun piping.
If these instructions are NOT followed correctly it may result in property damage or
personal injury, which may be serious depending on the circumstances.
WARNING
Never remove the spun piping by brazing.
Any gas or oil remaining inside the stop valve may blow off the spun piping.
CAUTION
Do not vent gases into the atmosphere.
WARNING
Provide adequate measures to prevent that the unit can be used as a shelter by small
animals. Small animals that make contact with electrical parts can cause
malfunctions, smoke or fire.
CAUTION
NEVER install a drier to this unit to guarantee its lifetime. The drying material may
dissolve and damage the system.
Charging refrigerant (see
"19Charging refrigerant"[492]
)
WARNING
The refrigerant inside the unit is mildly flammable, but normally does NOT leak. If the
refrigerant leaks in the room and comes in contact with fire from a burner, a heater,
or a cooker, this may result in fire, or the formation of a harmful gas.
Turn off any combustible heating devices, ventilate the room, and contact the dealer
where you purchased the unit.
Do NOT use the unit until a service person confirms that the part from which the
refrigerant leaked has been repaired.
WARNING
Charging of refrigerant MUST be in accordance with the instructions from this
manual. See "19Charging refrigerant"[492].
WARNING
▪ Only use R32 as refrigerant. Other substances may cause explosions and
accidents.
▪ R32 contains fluorinated greenhouse gases. Its global warming potential (GWP)
value is 675. Do NOT vent these gases into the atmosphere.
▪ When charging refrigerant, ALWAYS use protective gloves and safety glasses.