Connecting Refrigerant Piping; To Connect The Refrigerant Piping To The Indoor Unit; Connecting Water Piping; To Connect The Water Piping - Daikin EHVZ08S18DA6V7 Installation Manual

4 Installation
Option 2: Through the right side panel
1
3×
T25
4.3

Connecting refrigerant piping

See the installation manual of the outdoor unit for all guidelines,
specifications and installation instructions.
4.3.1 To connect the refrigerant piping to the
indoor unit
1 Connect the liquid stop valve from the outdoor unit to the
refrigerant liquid connection of the indoor unit.
a b
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, 4 shut-off valves and 1
overpressure bypass valve are provided. Mount the shut-off valves
on the space heating water inlets and space heating water outlets.
Installation manual
10
To ensure the minimum flow rate (and prevent overpressure), install
the overpressure bypass valve on the space heating water outlet
for the additional zone.
NOTICE
This unit is designed for operation on 2 temperature zones:
▪ underfloor heating in the main zone, this is the zone
with the lowest water temperature,
▪ radiators in the additional zone, this is the zone with
the highest water temperature.
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.
c d a b
f e
a Space heating additional zone water out
b Space heating additional zone water in
c Domestic hot water out
d Domestic cold water in (cold water supply)
e Space heating main zone water out
f Space heating main zone water in
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
the water volume and flow rate"
the minimum flow rate" [ 4 24].
"3.2.1 To check
[ 4 7] and "6.2.1 To check
EHVZ04+08S18+23DA6V+9W7
Daikin Altherma 3 R F
4P618950-1 – 2020.03