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Piping installation
8 Piping installation
In this chapter
8.1 Preparing water piping
8.1.1 Water circuit requirements
Installer reference guide
84
INFORMATION
This unit is a heating only model. Therefore, all references to cooling in this
document are NOT applicable.
8.1
Preparing water piping ...........................................................................................................................................................
8.1.1
Water circuit requirements ...................................................................................................................................
8.1.2
Formula to calculate the expansion vessel pre-pressure......................................................................................
8.1.3
To check the water volume and flow rate.............................................................................................................
8.1.4
Changing the pre-pressure of the expansion vessel .............................................................................................
8.1.5
To check the water volume: Examples ..................................................................................................................
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 the water piping for domestic hot water ...........................................................................................
8.2.5
To connect the recirculation piping.......................................................................................................................
8.2.6
To fill the water circuit ...........................................................................................................................................
8.2.7
To protect the water circuit against freezing ........................................................................................................
8.2.8
To fill the domestic hot water tank........................................................................................................................ 102
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.
10].
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"2 General safety
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1D - 2023.10
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