5 Application guidelines
Installer reference guide
11
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA
Daikin Altherma – Low temperature split
4P495248-1 – 2017.12
INFORMATION
In case an external room thermostat is used and room frost
protection needs to be guaranteed in all conditions, then
you have to set Emergency [9.5] to Automatic.
NOTICE
An overpressure bypass valve can be integrated in the
system. Keep in mind that this valve might not be shown
on the illustrations.
5.2.1
Single room
Under floor heating or radiators – Wired room
thermostat
Setup
B
A
a
A
Main leaving water temperature zone
B
One single room
a
User interface used as room thermostat
▪ The under floor heating or radiators are directly connected to the
indoor unit.
▪ The room temperature of the main room is controlled by the user
interface used as a room thermostat (optional equipment
EKRUDAS).
Configuration
Setting
Value
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
2 (Room thermostat): Unit
operation is decided based on
the ambient temperature of the
user interface.
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
0 (Single zone): Main
Benefits
▪
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:
▪ Stable room temperature matching the desired temperature
(higher comfort)
▪ Less ON/OFF cycles (more quiet, higher comfort and higher
efficiency)
▪ Lowest possible leaving water temperature (higher efficiency)
▪
Easy
. You can easily set the desired room temperature via the
user interface:
▪ For your daily needs, you can use preset values and schedules.
▪ 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
B
A
b
a
A
Main leaving water temperature zone
B
One single room
a
Receiver for wireless external room thermostat
b
Wireless external room thermostat
▪ The under floor heating or radiators are directly connected to the
indoor unit.
▪ The room temperature is controlled by the wireless external room
thermostat (optional equipment EKRTR1).
Configuration
Setting
Value
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
1 (External room thermostat):
Unit operation is decided by the
external thermostat.
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
0 (Single zone): Main
External room thermostat for the
main
zone:
▪ #: [2.A]
▪ Code: [C-05]
1 (1 contact): 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.
Benefits
▪
Wireless.
The Daikin external room thermostat is available in a
wireless version.
▪
Efficiency.
Although the external room thermostat only sends ON/
OFF signals, it is specifically designed for the heat pump system.
Heat pump convectors
Setup
B
A
a
A
Main leaving water temperature zone
B
One single room
a
Remote controller of the heat pump convectors
▪ The heat pump convectors are directly connected to the indoor
unit.
Final English - Tanslations in progress
