7 Installation
Installer reference guide
34
ERGA04~08DAV3(A) + 08S18+23DA
Daikin Altherma – Low temperature split
4P495249-1 – 2017.12
b
Contains fluorinated greenhouse gases
2
1
1
1
2
2
kg
tCO
2
eq
GWP × kg
1000
=
=
+
kg
=
kg
=
GWP: XXX
RXXX
a
f
c
d
e
a
If a multilingual fluorinated greenhouse gases label is
delivered with the unit (see accessories), peel off the
applicable language and stick it on top of
a
.
b
Factory refrigerant charge: see unit name plate
c
Additional refrigerant amount charged
d
Total refrigerant charge
e
Greenhouse gas emissions
of the total refrigerant charge
expressed as tonnes CO
2
-equivalent
f
GWP = Global warming potential
NOTICE
In Europe, the
greenhouse gas emissions
of the total
refrigerant charge in the system (expressed as tonnes
CO
2
-equivalent) is used to determine the maintenance
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
2
Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
7.8
Connecting the water piping
7.8.1
About connecting the water piping
Before connecting the water piping
Make sure the outdoor and indoor unit are mounted.
Typical workflow
Connecting the water piping typically consists of the following
stages:
1
Connecting the water piping to the indoor unit.
2
Connecting the recirculation piping.
3
Connecting the drain hose to the drain.
4
Filling the water circuit.
5
Filling the domestic hot water tank.
6
Insulating the water piping.
7.8.2
Precautions when connecting the water
piping
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
7.8.3
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.
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
To avoid damage to the surroundings in case of water
leakage, it is recommended to close the domestic cold
water inlet shut‑off valves during periods of absence.
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" on page 21
check the minimum flow rate" on page 70
.
