Daikin RXTM30R2V1B 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.
CAUTION
▪
Use the flare nut fixed to the unit.
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To prevent gas leakage, apply refrigeration oil only to the inside of the flare. Use
refrigeration oil for R32.
▪
Do NOT reuse joints.
CAUTION
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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.
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 start the unit if it is vacuumed.
RXTM-R_RXTP-R_ARXTP-R_RXTA-B
R32 split series
4P518023-11H – 2021.03