Sanitary Connection; Water; Operation; Instructing The User/Owner - Daikin EKHHP300AA2V3 Installation And Operating Instructions Manual

2 x Safety
Information on the installation site of other com-
ponents can be found in the associated docu-
mentation supplied with them.

2.4.5 Sanitary connection

● You must comply with:
– EN 1717 - Protection of domestic water
from contamination in domestic water
installations and general requirements con-
cerning safety equipment for the prevention
of domestic water contamination by back-
flow
– EN 806 - Technical regulations for domes-
tic water installations (TRWI)
– and, as a supplement, the country-specific
legal requirements.
A safety valve must be fitted in the domestic
water feed to the DAIKIN EKHHP. There should
be no isolating fitting between the safety valve
and the DAIKIN EKHHP.
Any steam or heating water which may escape
must be diverted by a suitable blow-off line with
constant gradient in a frost-protected, safe and
observable manner.
The storage tank temperature can exceed 60 °C
if you connect a solar system.
● For this reason you should fit scalding
protection (e.g. VTA32 + Verschraubungsset
1") during installation.
The domestic water quality must comply
with the EU Guideline 98/83 EC and the
regionaly-applicable regulations.
2.4.6 Requirements for the depressurised
storage tank water
Observe the current technological regulations to
prevent 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
– Chloride: ≤ 250 mg/l
– Sulphate: ≤ 250 mg/l
– pH value: 6,5 - 8,5
Installation and operating instructions
6
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 an optional external heat generator is
connected via the corrugated pipe heat
exchanger of the EKHHP500AA2V3,
these minimum requirements also apply for the
filling and topping-up water of this heating
circuit.

2.4.7 Operation

The DAIKIN EKHHP
● Do not operate until all installation and
connection work is completed.
● Only operate with a completely full storage
tank (level indicator).
● Only connect with a pressure reducer on the
external water supply (supply line).
● Only operate the with the specified quantity of
coolant and the type of coolant specified.
● only operate if the protective cover is installed.
The specified servicing intervals should be ad-
hered to and inspection work must be carried
out.

2.4.8 Instructing the user/owner

● Before you hand over the DAIKIN EKHHP,
explain to the user/owner how to operate and
check the system.
● Provide the operator with the technical
documentation (this documentation and all its
references) and indicate that these
documents must be available in the
immediate vicinity of the unit at all times.
● Document the hand-over.
DAIKIN EKHHP(3/5)00AA2V3
DAIKIN Hot water heat pump
008.1423444_05 – 08/2016