Daikin ETSX16E Installer's Reference Manual page 86

8 | Piping installation
8 Piping installation
In this chapter
8.1 Preparing water piping
8.1.1 Water circuit requirements
Installer reference guide
86
8.1 Preparing water piping ...........................................................................................................................................................
8.1.1 Water circuit requirements ...................................................................................................................................
8.1.2 To check the water volume and flow rate.............................................................................................................
8.2 Connecting water piping ........................................................................................................................................................
8.2.1 About connecting the water piping .......................................................................................................................
8.2.2 Precautions when connecting the water piping....................................................................................................
8.2.3 To connect the water piping..................................................................................................................................
8.2.4 To connect a pressure vessel .................................................................................................................................
8.2.5 To fill the heating system .......................................................................................................................................
8.2.6 To protect the water circuit against freezing ........................................................................................................
8.2.7 To fill the heat exchanger inside the storage tank ................................................................................................ 100
8.2.8 To fill the storage tank ........................................................................................................................................... 100
8.2.9 To insulate the water piping .................................................................................................................................. 102
INFORMATION
Also read the precautions and requirements in the
4
precautions" [
NOTICE
In case of plastic pipes, make sure they are fully oxygen diffusion tight according to
DIN 4726. The diffusion of oxygen into the piping can lead to excessive corrosion.
▪ Connecting piping – Legislation. Make all piping connections in accordance with
the applicable legislation and the instructions in the "Installation" chapter,
respecting the water inlet and outlet.
▪ Connecting piping – Force. Do NOT use excessive force when connecting the
piping. Deformation of the piping can cause malfunctioning of the unit.
▪ Connecting piping – Tools. Only use appropriate tooling to handle brass, which is
a soft material. If NOT, pipes will get damaged.
▪ Connecting piping – Air, moisture, dust. If air, moisture or dust gets into the
circuit, problems may occur. To prevent this:
- ONLY use clean pipes.
- Hold the pipe end downwards when removing burrs.
- Cover the pipe end when inserting it through a wall, to prevent dust and/or
particles from entering the pipe.
- Use a decent thread sealant to seal connections.
- When using non-brass metallic piping, make sure to insulate both materials
from each other to prevent galvanic corrosion.
- Because brass is a soft material, use appropriate tooling for connecting the
water circuit. Inappropriate tooling will cause damage to the pipes.
▪ Insulation. Insulate up to the base of the heat exchanger.
▪ Freeze. Protect against freezing.
10].
86
86
89
90
90
90
90
95
95
97
"2 General safety
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679467-1D – 2023.11