Piping Installation; Connecting Water Piping; To Connect The Water Piping; To Fill The Water Circuit - Daikin altherma EPGA11DAV3 Manual De Instalación

2 Place the 2 cables over the outdoor unit.
3 Insert a rubber sheet between the cables and the outdoor unit
to prevent the cables from scratching the paint (field supply).
4 Attach the ends of the cables.
5 Tighten the cables.
5

Piping installation

5.1

Connecting water piping

5.1.1

To connect the water piping

NOTICE
Do NOT use excessive force when connecting the field
piping and make sure the piping is aligned properly.
Deformation of the piping can cause malfunctioning of the
unit.
a
c
a Water IN (screw connection, male, 1")
b Water OUT (screw connection, male, 1")
c Shut-off valve with integrated filter (delivered as accessory)
(2× screw connection, female, 1")
d O-ring
EPGA11~16DAV3(7)
Daikin Altherma 3 H
4P556065-1B – 2021.09
b
a c
d
NOTICE
About the shut-off valve with integrated filter (delivered as
accessory):
▪ The installation of the valve at the water inlet is
mandatory.
▪ Mind the flow direction of the valve.
1 Connect the O-rings and shut-off valve to the outdoor unit water
inlet.
2 Connect the field piping to the shut-off valve.
3 Connect the field piping to the outdoor unit water outlet.
NOTICE
Install air purge valves at all local high points.
5.1.2

To fill the water circuit

See the installation manual of the indoor unit, or the installer
reference guide.
5.1.3 To protect the water circuit against
freezing
About freeze protection
Frost can damage the system. To prevent the hydraulic components
from freezing, the software is equipped with special frost protection
functions such as water pipe freeze prevention and drain prevention
(see the installer reference guide) that include the activation of pump
in case of low temperatures.
However, in case of a power failure, these functions cannot
guarantee protection.
Do one of the following to protect the water circuit against freezing:
▪ Add glycol to the water. Glycol lowers the freezing point of the
water.
▪ Install freeze protection valves. Freeze protection valves drain the
water from the system before it can freeze. Insulate the freeze
protection valves in a similar way as the water piping, but do NOT
insulate the inlet and outlet (release) of these valves.
NOTICE
If you add glycol to the water, do NOT install freeze
protection valves. Possible consequence: Glycol leaking
out of the freeze protection valves.
Freeze protection by glycol
About freeze protection by glycol
Adding glycol to the water lowers the freezing point of water.
WARNING
Ethylene glycol is toxic.
5 Piping installation
Installation manual
9