Installer reference guide
7
EHVH/X16
Daikin Altherma - Low Temperature Split
4P313777-1 – 2012.05
5 Application guidelines
5.2.1 Single room
Under floor heating or radiators – Wired room
thermostat
Setup
Q
The under floor heating or radiators are directly connected to the
indoor unit.
Q
The room temperature is controlled by the user interface, which
is used as room thermostat. Possible installations:
Q
User interface (standard equipment) installed in the room
and used as room thermostat
Q
User interface (standard equipment) installed at the indoor
unit and used for control close to the indoor unit + user
interface (optional equipment EKRUCAL) installed in the
room and used as room thermostat
Configuration
Benefits
Q
Cost effective
.
You do NOT need an additional external room
thermostat.
Q
Highest comfort and efficiency
. The smart room thermostat
functionality can decrease or increase the desired leaving water
temperature based on the actual room temperature
(modulation). This results in:
Q
Stable room temperature matching the desired temperature
(higher comfort)
Q
Less ON/OFF cycles (more quiet, higher comfort and
higher efficiency)
Q
Lowest possible leaving water temperature (higher
efficiency)
Q
Easy
. You can easily set the desired room temperature via the
user interface:
Q
For your daily needs, you can use preset values and
schedules.
Q
To deviate from your daily needs, you can temporarily
overrule the preset values and schedules, use the holiday
mode…
Under floor heating or radiators – Wireless room
thermostat
Setup
Q
The under floor heating or radiators are directly connected to the
indoor unit.
Q
The room temperature is controlled by the wireless external
room thermostat (optional equipment EKRTR1).
Configuration
Benefits
Q
Wireless
.
The Daikin external room thermostat is available in a
wireless version.
Q
Efficiency
.
Although the external room thermostat only sends
ON/OFF signals, it is specifically designed for the heat pump
system.
Q
Comfort
.
In case of under floor heating, the wireless external
room thermostat prevents condensation on the floor during
cooling operation by measuring the room humidity.
A
Main leaving water temperature zone
B
One single room
a
User interface used as room thermostat
Setting
Value
Unit temperature control:
Q
#: [A.2.1.7]
Q
Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Number of water temperature
zones:
Q
#: [A.2.1.8]
Q
Code: [7-02]
0 (1 LWT zone): Main
B
A
a
A
Main leaving water temperature zone
B
One single room
a
Receiver for wireless external room thermostat
b
Wireless external room thermostat
Setting
Value
Unit temperature control:
Q
#: [A.2.1.7]
Q
Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
Q
#: [A.2.1.8]
Q
Code: [7-02]
0 (1 LWT zone): Main
External room thermostat for the
main
zone:
Q
#: [A.2.2.4]
Q
Code: [C-05]
Configure according to the setup:
Q
1 (Thermo ON/OFF): When
the used external room
thermostat or heat pump
convector can only send a
thermo ON/OFF condition.
No separation between
heating or cooling demand.
Q
2 (C/H request): When the
used external room
thermostat can send a
separate heating/cooling
thermo ON/OFF condition.
B
A
b
a
