Aligning The Connections Of The Heating Feed And Return Flow - Daikin Altherma EHS Serie Manual De Instrucciones E Instalación

4 x Set-up and installation
In accordance with EN 12828 you must install a safety
valve at or in the immediate vicinity of the heat
exchanger, with which you can limit the maximum per-
missible operating pressure in the heating system.
There should be no hydraulic blocking elements
between the heat generator and the safety valve.
Any steam or heating water which may escape must be
diverted by a suitable blow-off line with constant gradi-
ent in a frost-protected, safe and observable manner.
A diaphragm expansion vessel of adequate dimensions
and pre-set for the heating system must be connected
to the Daikin Altherma EHS(X/H). There should be no
hydraulic blocking elements between the heat genera-
tor and the diaphragm expansion vessel.
Daikin recommends integrating a mechanical manom-
eter for the filling of the heating system.
For drinking water lines, comply with the EN 806 and
DIN 1988 stipulations.
Install the Daikin Altherma EHS(X/H) near to the removal
point to dispense with the need for a circulation line. If a circu-
lation line is absolutely essential, it must be installed in
accordance with the schematics in section 9 "Hydraulic
system connection".
4.4.1 Aligning the connections of the heating feed
and return flow
The connections for the heating feed and return flow can be di-
rected out of the unit upwards or downwards in order to adapt to
the on-site conditions in the most optimum manner.
The unit is delivered with the connections exiting upwards as
standard. In order to direct the connections out from the back of
the unit you must carry out the following conversion steps:
Remove the cover hood and the upper thermal insulation
(see chapter 4.3).
Fig. 4-10 Heating feed and return flow connections aligned upwards
Pull off both the plug brackets on the connection couplings
(fig. 4-10, item C).
Pull off both connection couplings (fig. 4-10, item B).
Installation and operating instructions
22
CAUTION!
When working on the hydraulics you
must take care of the mounting position
of the O-rings to prevent damage to the
O-rings and consequent leaks.
Always place O-rings on the part to be
inserted after a plug connection has
been removed or before it is installed.
Connection of heating lines by plug
connection must be without tension.
Establish suitable tension relief partic-
ularly for connection with flexible lines
(not breathable!).
Remove retainer plate (fig. 4-10, item A).
Pull off the plug bracket on the closing plug (fig. 4-10, item D).
Pull out the closing plug (fig. 4-10, item E).
Rotate the angular piece (fig. 4-10, item H) by 90° to the back.
Pull off the plug bracket on the elbow (fig. 4-10, item G).
Pull the elbow (fig. 4-10, item F) carefully to the rear out of its
horizontal mount so that the retainer plate (fig. 4-11, item A)
can be inserted in the gap vertically.
Fig. 4-11 Heating feed and return flow connections aligned to the rear
Slide the retainer plate between the elbow and its horizontal
mount and insert the elbow (fig. 4-11, item F) back in its
mount through the central hole in the retainer plate.
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN