Daikin RXTJ30A2V1B Installer's Reference Manual page 16

3 | Specific installer safety instructions
Installer reference guide
16
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.
WARNING
Connect the refrigerant piping securely before running the compressor. If the
refrigerant piping is NOT connected and the stop valve is open when the compressor
is run, air will be sucked in. This will cause abnormal pressure in the refrigeration
cycle, which may result in equipment damage and even injury.
CAUTION
▪
Incomplete flaring may cause refrigerant gas leakage.
▪
Do NOT re-use flares. Use new flares to prevent refrigerant gas leakage.
▪
Use flare nuts that are included with the unit. Using different flare nuts may
cause refrigerant gas leakage.
CAUTION
Do NOT open the valves before flaring is complete. This would cause refrigerant gas
leakage.
DANGER: RISK OF EXPLOSION
Do NOT open the stop valves before the vacuum drying is finished.
Charging refrigerant (see
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
▪
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.
WARNING
NEVER directly touch any accidental leaking refrigerant. This could result in severe
wounds caused by frostbite.
"8 Charging refrigerant" [
4
41])
RXTJ-A_RXTA-C_RXTM-A_RXTP-A
4P728168-1 – 2023.03
R32 split series