Daikin Altherma 3 GEO Series - Using weather-dependent curves

5 | Application guidelines
Installer reference guide
25
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
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
Underfloor heating or radiators – Wired room thermostat
Setup
B
A
a
b
A Main leaving water temperature zone
B One single room
a Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat)
b Remote outdoor sensor
▪ For more information about connecting the electrical wiring to the unit, see
"8.2 Overview of electrical connections for external and internal
actuators"[480].
▪ The underfloor heating or radiators are directly connected to the indoor unit.
▪ The room temperature is controlled by the dedicated Human Comfort Interface
(BRC1HHDA used as room thermostat).
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 dedicated Human
Comfort 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)