4
Set-up and installation
Installation and maintenance instructions
27
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
Fig. 4-39
Connection with wired room thermostat (RT = Daikin
EKRTW)
Fig. 4-40
Connection with radio-controlled room thermostat (RT-E
= Daikin EKRTR)
4.7.11
Connection of optional RoCon system
components
The optional RoCon devices must be connected to the Daikin
Altherma EHS(X/H) via a 4-wire CAN bus line (connection J13).
For this, we recommend shielded lines with the following character-
istics:
▪ Standardisation according to ISO 11898, UL/CSA type CMX (UL
444)
▪ PVC outer sheath with flame retardancy according to IEC
60332-1-2
▪ Up to 40 m, minimum cross-section 0.75 mm
2
. Larger conductor
cross-section necessary with increasing length.
Commercially available junction boxes can be used to connect CAN
bus lines of several RoCon devices.
Ensure that mains, sensor and data bus lines are routed separately.
Use only cable ducts with separators or separate cable ducts spaced
at least 2 cm apart. Line crossings are permissible.
A maximum of 16 devices with a total line length of up to 800 m can
be connected in the entire RoCon system.
Room controller EHS157034
A separate EHS157034 room controller can be connected for each
heating circuit to enable remote adjustment of operating modes and
target room temperatures from another room.
INFORMATION
Separate installation instructions are included with this
component. See the enclosed control system manual for
instructions on setting and operation.
EHS157068 mixer module
The EHS157068 mixer module can be connected to the Daikin
Altherma EHS(X/H) (J13 circuit board connector) and is controlled
by the electronic controller.
INFORMATION
Separate installation instructions are included with this
component. See the enclosed control system manual for
instructions on setting and operation.
Internet gateway EHS157056
The controller can be connected to the internet with the optional
EHS157056 gateway. This enables remote control of the Daikin
Altherma EHS(X/H) by mobile phones (by app).
INFORMATION
Separate installation instructions are included with this
component. See the enclosed control system manual for
instructions on setting and operation.
4.7.12
Connecting the HP convector
INFORMATION
A separate manual containing instructions about installa-
tion and operation is included with this component.
▪ Electrical connection of the HP convector with the following ac-
cessories according to
as a switchover contact (heating/
cooling).
▪ If necessary, install and connect a 2-way valve (2UV) (HPC-RP 14
20 13) in the HP convector. Set its controller so that the 2-way
valve (2UV) closes when no request is available from this device.
INFORMATION
The operating mode (heating/cooling) can only be switched
on the Daikin Altherma EHS(X/H).
