Daikin EHVH08SU18DA6V7 [10/36] Installation
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Daikin EHVH08SU18DA6V7 [10/36] Installation

Daikin EHVH08SU23DA6V7 [10/36] Installation
4 Installation
Installation manual
10
EHVH04+08SU18+23DA6V7
Daikin Altherma 3 R F
4P619456-1 – 2020.03
a Refrigerant liquid connection
b Refrigerant gas connection
2 Connect the gas stop valve from the outdoor unit to the
refrigerant gas connection of the indoor unit.
INFORMATION
When the indoor unit is installed in a place with limited
space, an optional pipe bend (EKHVTC) kit can be
installed to facilitate the connection to the refrigerant gas
and liquid connections of the indoor unit. For installation
instructions, see the instruction sheet of the pipe bend kit.
4.4 Connecting water piping
4.4.1 To connect the water piping
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
To facilitate service and maintenance, 2 shut-off valves and 1
overpressure bypass valve are provided. Mount the shut-off valves
on the space heating water inlet and space heating water outlet. To
ensure the minimum flow rate (and prevent overpressure), install the
overpressure bypass valve on the space heating water outlet.
1 Install the shut-off valves on the space heating water pipes.
2 Screw the indoor unit nuts on the shut-off valve.
3 Connect the domestic hot water in and out pipes to the indoor
unit.
4 Connect the domestic hot water in and out pipes to the indoor
unit. It is obligatory to use the accessory G3 kit EKUHWG3D to
comply with UK legislation. See "4.4.2 To connect the water
piping for domestic hot water"[410].
c d a b
a Space heating/cooling water out
b Space heating/cooling water in
c Domestic hot water out
d Domestic cold water in (cold water supply)
NOTICE
It is recommended to install shut-off valves to domestic
cold water in and domestic hot water out connections.
These shut-off valves are field supplied.
NOTICE
Overpressure bypass valve (delivered as accessory). We
recommend to install the overpressure bypass valve in the
space heating water circuit.
Mind the minimum flow rate when adjusting the
overpressure bypass valve setting. See "3.2.1 To check
the water volume and flow rate"[47] and "6.2.1To check
the minimum flow rate"[424].
NOTICE
Install air purge valves at all local high points.
NOTICE
A pressure relief valve (field supply) with an opening
pressure of maximum 10 bar (=1 MPa) must be installed
on the domestic cold water inlet connection in accordance
with the applicable legislation.
4.4.2 To connect the water piping for domestic
hot water
a
e
e
b
d
c
a Pressure reducing valve/pressure relief valve
combination. Water inlet and water outlet 22mm
connection, discharge piping connection 15mm
b Adaptor 22mm×3/4" Female BSP
c T-piece 22mm×22mm×22mm
d Expansion vessel of 18L – 3/4" Male BSP
e Tundish 15mm inlet, 22mm outlet

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