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b
a
a
Brine OUT (Ø28 mm)
b
Brine IN (Ø28 mm)
NOTICE
To facilitate service and maintenance, it is recommended
to install shut-off valves as close as possible to the inlet
and outlet of the unit.
5.2.2
To connect the brine level vessel
The brine level vessel (delivered as accessory) must be installed on
the brine side of the heat pump system. A safety valve is included
with the vessel. The vessel serves as a visual indicator of the brine
level of the system. Air trapped in the system is collected by the
vessel, causing the level of brine in the vessel to decrease.
1 Install the brine level vessel as the highest point in the brine
circuit on the entering brine piping.
2 Mount the included safety valve on top of the vessel.
3 Install a shut-off valve (field supplied) below the vessel.
NOTICE
If it is not possible to install the brine level vessel as the
highest point in the circuit, install an expansion vessel (field
supply) and install the safety valve in front of the expansion
vessel. Failure to observe this instruction may result in
malfunctioning of the unit.
a
a
Brine level vessel (accessory)
b
Expansion vessel (field supply, in case brine level vessel
cannot be installed as the highest point)
If the level of brine in the vessel is lower than 1/3, fill the vessel with
brine:
4 Close the shut-off valve below the vessel.
5 Remove the safety valve on top of the vessel.
6 Top up the vessel with brine until it is approximately 2/3 filled.
EGSAH/X06+10UD
Daikin Altherma 3 GEO
4P598591-1C – 2023.02
b
7 Reconnect the safety valve.
8 Open the shut-off valve below the vessel.
5.2.3
To connect the brine filling kit
A brine filling kit (field supply or option kit KGSFILL2) can be used to
flush, fill and drain the brine circuit of the system.
For installation instructions, see the installation manual of the brine
filling kit.
5.2.4
To fill the brine circuit
WARNING
Before, during and after filling carefully check the brine
circuit for leakage.
INFORMATION
The materials used in the brine circuit of the unit are
chemically resistant to the following anti-freeze fluids:
▪ 40 mass% propylene glycol
▪ 29 mass% ethanol
▪ 35 mass% ethylene glycol
1 Install the brine filling kit. See
kit" [ 4 11].
2 Connect a field supplied brine filling system to the 3-way valve.
3 Position the 3‑way valve correctly.
a
b
c
a
Brine level vessel (accessory)
b
Brine filling kit (field supply or option kit KGSFILL2)
c
Brine filling system (field supply)
4 Fill the circuit with brine until a pressure of ±2.0 bar (= 200 kPa).
5 Return the 3‑way valve to its original position.
NOTICE
A field supplied filling kit may come without a filter that
protects components in the brine circuit. In this case, it is
the responsibility of the installer to install a filter on the
brine side of the system.
WARNING
Temperature of the fluid running through the evaporator
can become negative. It MUST be protected against
freezing. For more information, see setting [A‑04] in
temperature" [ 4 35].
"7.4.4 Brine freezing
5 Piping installation
"5.2.3 To connect the brine filling
Installation manual
11
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