Connecting The Water Piping; About Connecting The Water Piping; Precautions When Connecting The Water Piping; To Connect The Water Piping - Daikin ERGA08DAV3 Installer's Reference Manual

7 Installation
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 Quantity of fluorinated greenhouse gases of the total
refrigerant charge expressed as tonnes CO
f GWP = Global warming potential
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
Formula to calculate the quantity in CO
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Use the GWP value mentioned on the refrigerant charge
label. That GWP is based on the current legislation on
fluorinated greenhouse gases. The GWP mentioned in the
manual might be outdated.
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.
Installer reference guide
36
equivalent.
2
equivalent.
equivalent
2
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 22
check the minimum flow rate" on
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
"6.4.3 To check
and "9.4.1 To
page 72.
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06