4
Set-up and installation
Installation and maintenance instructions
26
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
▪
unpressurised via the connections (solar inflow and solar
return flow) of the hot water storage tank
▪
for Daikin Altherma EHS(X/H) …Biv, device types, via the
integrated pressurised solar heat exchanger.
▪ Comply with the instructions on hydraulic connections
)
▪ Examples of the hydraulic connection (see
).
The external heat generator request is connected via a relay on prin-
ted circuit board RTX-EHS (see
the Daikin Altherma EHS(X/H) is possible as follows;
▪ External heat generator has a potential-free switching contact con-
nection for heat request:
▪ Connection to K3 if the external heat generator is responsible
for the preparation of hot water and the heating support (setting
of the [Config. of external heat source] parameter = "2" [→ Main
menu → Settings→ Ext. Source])
or
▪ Connection to K1 and K3 if two external heat generators are
used (setting of the [Config. of external heat source ] parameter
= "3" [→ Main menu → Settings → Ext. Source]). In this case,
K1 connects the external heat generator (e.g. gas-fired or oil-
fired boiler) for heating support and K3 connects the external
heat generator (EKBUxx) for hot water preparation.
or
▪ Connection to AUX connection A (see
)
▪ External heat generator can only be connected via mains voltage:
Connection (~230 V, maximum load 3000 W) to K1 and K3.
CAUTION
Danger of voltage flash-overs.
▪ The connections of the RTX-EHS printed circuit board
must not be used simultaneously for connecting mains
voltage (~230 V) and SELV ("Safety Extra Low
Voltage").
Fig. 4-38
Connection on the RTX-EHS printed circuit board
1
Refer to the external heat generator's respective installation in-
structions for a suitable electrical connection.
2
Installing the connection set for external heat generators (see
).
3
Make suitable connections on the RTX-EHS printed circuit board
of the connection set (see
).
4
Fix cables that are fed into the connection set from the outside
using the strain relief clips and cable ties included (see steps 7
and 8 in
).
4.7.10
Connecting the room thermostat
INFORMATION
A separate manual containing instructions about installa-
tion and operation is included with this component.
