Connecting The Drain; Electrical Connection - Daikin Altherma 3 R ECH2O Installation Und Betriebsanleitung

3 Set-up and installation
3 Make the hydraulic connections on the indoor unit.
▪ Refer to "3.1 Dimensions and connection
the position and dimension of the heater connections.
▪ Pay attention to the stipulated tightening torque (see
"6.3 Tightening torques" [ 4 34]).
▪ Install the line so that the sound insulation hood can be
positioned easily after installation.
▪ Connect the water for filling or refilling the heating system as
specified by EN 1717/EN 61770 to avoid contamination of
drinking water by return flow.
▪ For rear-facing connections: Support hydraulic lines suitably
according to the spatial conditions.
3‒28 Supporting rear-facing hydraulic lines
4 Connect the blow-off line to the safety over-pressure valve and
expansion vessel in accordance with EN 12828.
▪ Any steam or heating water that may escape must be drained
by a suitable blow-off line with constant gradient in a frost-
protected, safe and observable manner.
▪ Install the line in such a way that the protective cover is simple
to put on after assembly.
▪ Check the seat of the drain hose on the safety pressure relief
valve. If necessary, connect and install a separate hose.
5 Connecting a expansion vessel.
▪ Connect a suitably dimensioned and preset expansion vessel
for the heating system. There may not be any hydraulic
blocking elements between the heat generator and the safety
valve.
▪ Position the expansion vessel in an easily accessible place
(maintenance, parts replacement).
3‒29 Mounting the expansion vessel
6 Carefully insulate pipework against heat loss and to avoid
condensation (insulation thickness at least 20 mm).
▪ Water shortage protection: The pressure and temperature
monitoring of the controller shuts off and locks the indoor unit
safely if there is a shortage of water. No additional water shortage
protection is needed in the construction.
▪ Avoid damage caused by deposits and corrosion: see
"1.2.5 Requirements for heating and storage
Installation and operating manual
20
3.6.3
dimensions" [ 4 11] for
1 Screw the hose connection piece for safety overflow (part of the
▪ Use transparent drain hose (draining water must be visible).
▪ Connect the drain hose to an adequately dimensioned waste
water installation.
▪ Drain should not be lockable.
2 Attach the condensate drain hose (part of accessory bag) to its
3‒30 Connection of the overflow hose
3.7
water" [ 4 6]

Connecting the drain

accessory bag) into the intended connection
and components – Internal structure ...04P30D.../...08P30D...
(Biv)" [ 4 9], item u) and connect it with the drain hose.
connection on the cover.
a Hose connecting piece for safety overflow
b Condensate drain hose

Electrical connection

DANGER: RISK OF ELECTROCUTION
Touching live parts can result in an electric shock and
lead to potentially fatal injuries and burns.
▪ Before beginning work on live parts, disconnect all of
the circuits of the system from the power supply
(switch off external main switch, disconnect fuse) and
secure against unintentional restart.
▪ Establishment of the electrical connection and work on
electrical components should only be performed by
electrical technicians in compliance with valid
standards and guidelines as well as the specifications
of the energy supply company and the instructions in
this manual.
▪ The installation of earth leakage circuit breakers (GFCI)
is mandatory, as shown in the pictures of this
document.
▪ Never make constructional changes to connectors or
other electrical equipment components.
▪ Device covers and service panels must be replaced
as soon as the work is completed.
(" 2‒3 Design
Daikin Altherma EHS(X/H)(B)-D
Daikin Altherma 3 R ECH₂O
008.1451099_00 – 07/2020