Daikin EKHWP300B [4/36] Safety instructions for installation and operation
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Daikin EKHWP300B [4/36] Safety instructions for installation and operation

Daikin EKHWCB500PBA [4/36] Safety instructions for installation and operation
1 General safety precautions
Installation and operating manual
4
EKHW(D/C/P)(300/500)(P)B
Daikin Altherma ST (Hot water storage tank)
008.1633099_00 – 06/2020
1.2 Safety instructions for installation
and operation
1.2.1 General
WARNING
Devices that have not been set up and
installed correctly can impair the
function of the device and/or cause
serious or fatal injury to the user.
▪ Work on the unit (such as setup,
servicing, connection and initial
commissioning) must only be carried
out by persons who are authorised
and who have successfully
completed qualifying technical or
vocational training, and who have
taken part in advanced training
sessions recognised by the relevant
responsible authorities for the specific
activity. These include, in particular,
certified heating engineers,
qualified electricians and HVAC
specialists who, because of their
professional training and expert
knowledge, have experience in the
professional installation and
maintenance of heating, cooling and
air conditioning systems as well as
hot water storage tanks.
▪ Switch off the external main switch
before starting any work on the
indoor unit and secure against being
switched on inadvertently.
▪ Do not leave any tools or other
objects below the hood of the unit
after finishing installation or
maintenance work.
Avoid Danger
The hot water storage tank is state-of-the-art and is built to meet all
recognised technical requirements. However, improper use can lead
to serious injuries or death, as well as causing material damage.
To prevent such risks, install and operate the hot water storage tank
only:
▪ as stipulated and in perfect condition,
▪ with an awareness of the safety and hazards involved.
This assumes knowledge and use of the contents of this manual, the
relevant accident prevention regulations and the recognised safety-
related and occupational medical rules.
▪ Keep flammable materials away from the hot water storage tank.
Before working on the hot water storage tank and the heating
system
▪ Work on the hot water storage tank and heating system (e.g.
installation, connection and initial start-up) should only be carried
out by authorised and trained heating experts.
▪ Switch off the main switch before starting any work on the
domestic hot water storage tank and heating system and secure it
against unintentional switch-on.
▪ Seals must not be damaged or removed.
▪ Make sure that the safety valves comply with the requirements of
EN 12828 when connecting on the heating side, and with the
requirements of EN 12897 when connecting on the domestic
water side.
▪ Only original replacement parts may be used.
1.2.2 Intended use
The product may only be used as a hot water storage tank. The hot
water storage tank must be installed, connected and operated only
according to the information in this manual.
When connecting to the heat pump you must use only the storage
tank connection kits (E-Pac) provided for the purpose.
Only those electric immersion heaters supplied by us may be used.
Any other use outside the intended use is considered as improper.
The operator alone shall bear responsibility for any resulting
damage.
Intended use also includes compliance with the maintenance and
service conditions. Spare parts must at least satisfy the technical
requirements defined by the manufacturer. This is the case, for
example, with the use of original replacement parts.
1.2.3 Device installation room
For safe and fault-free operation, it is necessary that the installation
location of the hot water storage tank fulfils certain criteria.
Information about the installation location for the hot water storage
tank can be found in "3.1Set-up"[413].
Information on the installation site of other components can be found
in the associated documentation supplied with them.
1.2.4 Electrical installation
▪ Electrical installations may only be carried out by electrical
technicians 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.
▪ For each hard wired power connection, install a separate
disconnector system compliant with EN 60335-1 for all-pole
disconnection from the power mains.
1.2.5 Requirements of the heating and filling
water
Observe the relevant regulations of technology to prevent creation of
corrosion products and deposits.
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

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