About Connecting The Refrigerant Piping; Precautions When Connecting The Refrigerant Piping - Daikin R32 Split Series Installer's Reference Manual

7.2.1 About connecting the refrigerant piping

7.2.2 Precautions when connecting the refrigerant piping

ARXM50-71+RXM42~71R2V1B + RXP50~71M2V1B + RXA42+50B2V1B +
RXF50+60B2V1B + RXF71A2V1B + RXJ50N2V1B + ARXF50~71A2V1B
R32 split series
4P513661-9J – 2020.05
Before connecting the refrigerant piping
Make sure the outdoor and indoor unit are mounted.
Typical workflow
Connecting the refrigerant piping involves:
▪ Connecting the refrigerant piping to the indoor unit
▪ Connecting the refrigerant piping to the outdoor unit
▪ Insulating the refrigerant piping
▪ Keeping in mind the guidelines for:
- Pipe bending
- Flaring pipe ends
- Using the stop valves
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
"2 General safety
▪
"7.1 Preparing refrigerant
DANGER: RISK OF BURNING/SCALDING
CAUTION
▪
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.
▪
Do NOT reuse joints.
CAUTION
▪
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
precautions" [ 5]
piping" [ 4 35]
7 Piping installation
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Installer reference guide
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