Connecting Hydraulic Lines - Daikin Altherma M ECH2O Series Installation And Maintenance Instructions Manual

4 x Set-up and installation
● Slide the retaining plate between the manifold and its horizon-
tal mounting and insert the manifold (fig. 4-14, item F) back
into its mounting through the middle hole of the retaining
plate.
CAUTION!
If the plug brackets cannot be put on properly,
the couplings can be detached from their
mountings to ensure a very strong or continuous
escape of liquid can occur.
● Before putting on a plug bracket, make sure
that the plug bracket engages in the coupling
groove. To do so, insert the coupling far
enough into the mounting that the groove is
visible through the plug bracket mounting.
● Insert the plug bracket up to the end stop.
● Secure the manifold with plug bracket (fig. 4-14, item G) in its
mounting again.
● Insert the two connection couplings (fig. 4-14, item B) into the
lateral mountings through the retaining plate.
● Secure the two connection couplings with plug brackets
(fig. 4-14, item C) in their mountings.
● Insert the sealing plug (fig. 4-14, item E) into the upper
mounting.
● Secure the sealing plug with plug bracket (fig. 4-14, item D).
● Cut out side openings in the thermal insulation (fig. 4-15,
item A) using a suitable tool.
Fig. 4-15 Cut-out in thermal insulation
Installation and maintenance instructions
20

4.4.2 Connecting hydraulic lines

Prerequisite: optional accessories (e.g. solar, backup heater) are
mounted on the Daikin Altherma M ECH
enclosed instructions.
● Check cold water pressure (maximum 6 bar).
– If a higher pressure is present in the domestic water pipe,
a pressure reducer will need to be installed.
● Establish hydraulic connections on the Daikin Altherma M
ECH O.
2
– Refer to fig. 4-1 / fig. 4-2 and tab. 3-1 for the position and
dimensions of the heater connections and the outdoor unit
connections. The details of the hydraulic connection from
the indoor unit to the water inlet and outlet of the outdoor
unit can be seen in fig. 4-16.
Fig. 4-16 Establishing the hydraulic connection to the outdoor unit
– Pay attention to the stipulated tightening torque (see
chap. 10.4 "Tightening torque"). To avoid damage, apply
the necessary counter-torque with a suitable tool, see
fig. 4-17.
Fig. 4-17 Establishing the heating connections
– Install the line so that the sound insulation hood can be
positioned easily after installation.
– For rearward facing connections: Support hydraulic lines
suitably according to the spatial conditions, see fig. 4-18.
O as specified in the
2
Daikin Altherma M ECH O
2
Solar storage tank with heating controller
008.1446799_00 – 07/2019 – EN