Electrical Installation; Requirements For Heating And Storage Water; Heating System And Sanitary Connection; Operation - Daikin Altherma 3 H HT ECH2 O Referenzhandbuch Für Den Monteur

1 General safety precautions
CAUTION
▪ If overpressure occurs, the system releases some of
the fluid through the pressure relief valve. If glycol was
added to the system, take adequate measures so as to
safely recover it.
▪ Under all circumstances, make sure that the hose of
the pressure relief valve is ALWAYS free to release the
pressure. Prevent water from staying and/or freezing
up inside the hose.
1.2.4

Electrical installation

▪ Electrical installations may only be carried out by electrical techni-
cians and in compliance with valid electrical guidelines as well as
the specifications of the responsible energy supply company.
▪ Compare the mains voltage indicated on the nameplate with the
supply voltage before connecting to the mains.
▪ Before beginning work on live parts, disconnect them from the
power supply (switch off main switch, remove fuse) and secure
against unintentional restart.
▪ Device covers and service panels must be replaced as soon as
the work is completed.
1.2.5 Requirements for heating and storage
water
Damage due to deposits and corrosion: observe the relevant tech-
nical rules to avoid corrosion products and deposits.
Minimum requirements regarding the quality of filling and top-up wa-
ter:
▪ 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 value: 6.5 – 8.5
INFORMATION
To guarantee frost protection in the event of a power fail-
ure, glycol can be added to the heating water circuit.
Please observe the notes in
Measures for desalination, softening or hardness stabilisation are
necessary if the filling and top-up water have a high total hardness
(>3 mmol/l – total of the calcium and magnesium concentrations,
calculated as calcium carbonate). We recommend the use of Fernox
KSK limescale and corrosion protector. For other properties deviat-
ing from the minimum requirements, suitable conditioning measures
are necessary to maintain the required water quality.
Using filling water and top-up water which does not meet the stated
quality requirements can cause a considerably reduced service life
of the device. The responsibility for this lies solely with the operator.
1.2.6

Heating system and sanitary connection

▪ Create a heating system according to the safety requirements of
EN 12828.
Installer reference guide
6
Chap. 3.8.4.
▪ The plumbing connection must comply with the requirements of
EN 12897. The requirements of the following must also be ob-
served:
▪ EN 1717 – Protection against pollution of potable water installa-
tions and general requirements of devices to prevent pollution
by backflow
▪ EN 61770 – Electric appliances connected to the water mains –
Avoidance of backsiphonage and failure of hose-sets
▪ EN 806 – Specifications for installations inside buildings con-
veying water for human consumption
▪ and, in addition, the country-specific legislation.
When operating the indoor unit, the storage tank temperature may
exceed 65 °C.
▪ For this reason, some form of scalding protection needs to be in-
cluded when you install the system (hot water mixing device, e.g.
VTA32).
If the indoor unit is connected to a heating system with steel pipes,
radiators or non-diffusion-proof floor heating pipes, sludge and chips
can enter the hot water storage tank and cause blockages, local
overheating or corrosion damage.
▪ To prevent possible damage, install a dirt filter or sludge separator
into the heating return flow of the system (SAS 1 or SAS 2).
▪ The dirt filter must be cleaned at regular intervals.
1.2.7

Operation

The indoor unit:
▪ Do not operate until all installation and connection work is com-
pleted.
▪ Only operate with a completely full storage tank (check level indic-
ator) 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 inspec-
tion work must be carried out.
1.3 Maintenance, troubleshooting and
decommissioning
Work for maintenance, troubleshooting and decommissioning must
not be carried out without knowledge of the relevant safety precau-
tions and in the event of disposal of the country-specific guidelines.
Please refer to the corresponding information in the installer refer-
ence guide.
Recommendations for disposal
We designed the indoor unit in an environmentally friendly manner.
During the disposal process, the only waste created is that which
can be used for material or thermal recycling. The materials used
that are suitable for recycling can be sorted into individual types.
Thanks to the environmentally friendly design of the in-
door unit, we have established requirements to ensure environ-
mentally friendly disposal. Proper disposal in compliance with the
respective national regulations of the country of use is the respons-
ibility of the user/owner.
Heat pump (indoor unit) with integrated heat accumulator
Daikin Altherma ETS(X/H)(B)-D
008.1447299_00 – 06/2019 – EN