7
|
Piping installation
Installer reference guide
33
CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S)
Daikin room air conditioner
4P518023-15P – 2023.05
7 Piping installation
In this chapter
7.1 Preparing refrigerant piping
7.1.1 Refrigerant piping requirements
CAUTION
Piping and joints of a split system shall be made with permanent joints when inside
an occupied space except joints directly connecting the piping to the indoor units.
NOTICE
The piping and other pressure-containing parts shall be suitable for refrigerant. Use
phosphoric acid deoxidised seamless copper for refrigerant piping.
INFORMATION
Also read the precautions and requirements in the
7].
▪
Foreign materials inside pipes (including oils for fabrication) must be
≤30 mg/10 m.
Refrigerant piping diameter
Use the same diameters as the connections on the outdoor units:
Class
Pipe outer diameter (mm)
Liquid pipe
Gas pipe
15~42
Ø6.4
Ø9.5
50
Ø6.4
Ø12.7
Refrigerant piping material
▪
Piping material:
phosphoric acid deoxidised seamless copper
▪
Flare connections:
Only use annealed material.
▪
Piping temper grade and thickness:
Summary of Contents for FTXA20C2V1BW
Page 57: ......
Page 58: ......
Page 59: ......
Page 60: ...4P518023 15P 2023 05 Copyright 2023 Daikin Verantwortung f r Energie und Umwelt...