Daikin EHSHB08P30D27 [6/40] Electrical installation
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Daikin EHSHB08P30D27 [6/40] Electrical installation

Daikin EHSHB08P30D27 [6/40] Electrical installation
1 General safety precautions
Installation and operating manual
6
Daikin Altherma EHS(X/H)(B)-D
Daikin Altherma 3 R ECH₂O
008.1451099_00 – 07/2020
CAUTION
▪ If a DrainBack solar heating
system is connected: Install the
indoor unit far enough under the solar
panels to allow complete emptying of
the solar heating system. (Follow the
instructions in the DrainBack solar
heating system manual.) An
insufficient height difference may lead
to destruction of the DrainBack solar
heating system.
▪ The indoor unit must not be operated
in rooms with ambient temperatures
of more than 40°C.
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.
▪ 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
technical rules to avoid corrosion products and deposits.
Minimum requirements regarding the quality of filling and top-up
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 value: 6.5 – 8.5
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
deviating 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 equipment. The responsibility for this lies solely with the
operator.
INFORMATION
If an optional external heat generator is connected, these
minimum requirements also apply to the filling and
supplementary water for this heating circuit.
1.2.6 Heating system and sanitary connection
▪ Create a heating system according to the safety requirements of
EN12828.
▪ The plumbing connection must comply with the requirements of
EN 12897. The requirements of the following must also be
observed:
▪ EN 1717 – Protection against pollution of potable water
installations 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
conveying water for human consumption
▪ and, in addition, the country-specific legislation.
During operation of the indoor unit with an auxiliary heat source, the
storage tank temperature may exceed 65°C, above all when solar
energy is used.
▪ For this reason, some form of scalding protection needs to be
included when you install the system (hot water mixing device,
e.g. VTA32).
INFORMATION
The domestic water quality must comply with the
EU Guideline 98/83 EC and the regionally-applicable
regulations.
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
completed.
▪ Only operate with a completely full storage tank (check 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 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
precautions and in the event of disposal of the country-specific
guidelines. Please refer to the corresponding information in the
reference manual for the fitter.
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.

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