Installation Of The P Connection Kit; Water Connection; Connecting Hydraulic Lines - Daikin Altherma EHSX04P50D Installations- Und Wartungsanleitung

4 Set-up and installation
Item Designation
A DB pipe connection (solar inflow)
B FlowSensor (not part of the DB connection kit, but in-
cluded with EKSRPS4)
C Flow rate limiter (FlowGuard)
D
Solar - inflow connection
Tab. 4-4
4.5.4

Installation of the P connection kit

The optional P connection kit for Biv device types allows better ac-
cess for connecting the inflow and return flow lines of a pressurised
solar system or another external heat generator on the storage tank.
The kit contains two thermally insulated corrugated pipes that are
connected to the connections of the storage tank via a union nut. At
the other end of the corrugated pipes there is an adapter for different
connection sizes of the inflow and return flow lines.
Fig. 4-26 P connection kit for Biv device types
Item Designation
A Connection for inflow (red)
B Connection for return flow (blue)
4.6

Water connection

Important information
CAUTION
If the Daikin Altherma EHS(X/H) is connected to a heating
system with steel pipes, radiators or non-diffusion-proof
floor heating pipes, slurry and swarf could enter the hot
water storage tank and cause blockages, local overheat-
ing or corrosion damage.
▪ Rinse supply lines before filling the device.
▪ Rinse out the heat distribution network (in the existing
heating system).
▪ Install a dirt filter or sludge separator in the heating re-
turn flow (see chap. ).
Installation and maintenance instructions
20
on the storage tank
B A
CAUTION
If the Daikin Altherma EHS(X/H) is connected to a cold wa-
ter line where steel pipes are used, chips can get into the
stainless steel corrugated pipe heat exchanger and remain
there. This can lead to contact corrosion damage and sub-
sequently to leakage.
▪ Flush the feed pipes before filling the heat exchanger.
▪ Install the dirt filter in the cold water supply (e.g. SAS 1
or SAS 2).
CAUTION:BIV ONLY
If the heat exchanger for pressurised solar system char-
ging (see Chap. 4.1, items 8+ 9) is connected to an ex-
ternal heater (e.g. wood-burning boiler), the Daikin
Altherma EHS(X/H) can be damaged or destroyed due to
an excessively high inflow temperature at these connec-
tions.
▪ The inflow temperature of the external heating unit
should be limited to max. 95 °C.
CAUTION
Corrosion may be caused by air entering the heating water
network and by a quality of the heating water that does not
comply with the requirements in accordance with Require-
ments for the heating water. Corrosion products (particles)
thus created may clog pumps and valves and cause mal-
functions.
▪ Device may not be connected by permeable, flexible
lines.
▪ For potable water lines, observe the provisions of EN 806,
DIN 1988 and the additional applicable national regulations for
potable water installation.
▪ Install the Daikin Altherma EHS(X/H) close to the withdrawal point
to dispense with the need for a circulation line. If a circulation line
is mandatory, it must be installed according to the schematic dia-
grams in Chap. 6.1.
4.6.1

Connecting hydraulic lines

DANGER: RISK OF BURNING
There is a danger of scalding at hot water temperatures
over 65 °C. This is possible when using solar energy if an
external heater is connected, the Legionella protection is
activated, or the target hot water temperature is set to be
greater than 65 °C.
▪ Install a scalding protection (hot water mixer device (e.g.
VTA32)).
INFORMATION
The Daikin Altherma EHS(X/H) is equipped with a pressure
sensor. The system pressure in monitored electronically
and can be displayed with the device switched on.
Nevertheless, we recommend installing a mechanical pres-
sure gauge between the Daikin Altherma EHS(X/H) and
the diaphragm expansion vessel, for example.
▪ Install the pressure gauge so that it is easy to see when
filling.
1 Check the cold water connection pressure (maximum 6 bar).
▪ If a higher pressure is present in the domestic water pipe, a
pressure reducer will need to be installed.
2 Fix the hydraulic block in place with a screwdriver.
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN