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2
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Safety
2.4.3 Site of installation
For safe and fault-free operation, the installation
location of the Daikin Altherma M ECH
meet certain criteria. Information on this can be
found in chap. 4.2.
Information on the installation site of other com-
ponents can be found in the associated docu-
mentation supplied with them.
2.4.4 Heating system and sanitary
connection
● Create a heating system according to the
safety requirements of EN 12828.
● With a sanitary connection you must comply
with
– EN 1717 – Protection against pollution of
potable water installations and general
requirements of devices to prevent pollu-
tion by backflow
– EN 806 – Specifications for installations
inside buildings conveying water for human
consumption
– and, in addition, the country-specific legal
regulations.
The connection of a solar installation, an electric
heating rod or an alternative heat generator may
cause the storage temperature to exceed 60 °C.
● Scalding protection (e.g. VTA32 + Screw
set 1") must therefore be fitted during instal-
lation.
The domestic water quality must comply
with the EU Guideline 98/83 EC and the
regionaly-applicable regulations.
If the Daikin Altherma M ECH
a heating system with steel pipes, radiators or
non-diffusion-proof floor heating pipes, sludge
and swarf can enter the hot water storage tank
and cause blockages, local overheating or
corrosion damage.
● To prevent possible damage, fit a dirt filter or
sludge separator into the heating return flow
of the system.
– SAS 1
● The dirt filter must be cleaned at regular
intervals.
Installation and maintenance instructions
6
O must
2
O is connected to
2
2.4.5 Demands on the heating and pressure-
free storage water
Observe the relevant regulations of technology
to prevent creation of corrosion products and de-
posits.
Minimum requirements regarding the quality
of filling and supplementary water:
– Water hardness (calcium and magnesium,
calculated as calcium carbonate):
≤ 3 mmol/l
– Conductivity: ≤ 1500 (ideal: ≤ 100) μS/cm
– Chloride: ≤ 250 mg/l
– Sulphate: ≤ 250 mg/l
– pH-values (heating water): 6.5 - 8.5
Using filling water and top-up water which does
not meet the stated quality requirements can
cause a considerably reduced service life of the
equipment. The responsibility for this lies solely
with the operator.
If a pressurised solar system or optional
external heat source is connected to the
system via the corrugated-tube heat ex-
changer (Bild 3-1 and Bild 3-2, item 14),
then these minimum requirements also
apply to the fill and top-up water for this
heating circuit.
2.4.6 Operation
The Daikin Altherma M ECH
● Do not operate until all installation and
connection work is completed.
● Only operate with a completely full storage
tank (Level indicator) and heating circuit.
● Operate at a maximum pressure of 3 bar.
● Only connect with a pressure reducer on the
external water supply (supply line).
● only operate if the protective cover is installed.
The specified servicing intervals should be
adhered to and inspection work must be car-
ried out.
2.4.7 Instruct the owner
● Before you hand over the Daikin Altherma M
ECH
O, explain to the user how to operate
2
and check the system.
O:
2
Daikin Altherma M ECH
O
2
Solar storage tank with heating controller
008.1446799_00 – 07/2019 – EN
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