Daikin Altherma 3 GEO Series - Multiple Rooms - Two LWT Zones

5 | Application guidelines
Installer reference guide
34
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
Setting Value
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
0 (Single zone): Main
5.2.3 Multiple rooms – TwoLWT zones
If the heat emitters selected for each room are designed for different leaving water
temperatures, you can use different leaving water temperature zones (maximum
2).
In this document:
▪ Main zone = Zone with the lowest design temperature in heating, and the highest
design temperature in cooling
▪ Additional zone = Zone with the highest design temperature in heating, and the
lowest design temperature in cooling
CAUTION
If there is more than one leaving water zone, ALWAYS install a mixing valve station in
the main zone to decrease (in heating) the leaving water temperature when the
additional zone has demand.
Typical example:
Room (zone) Heat emitters: Design temperature
Living room (main zone) Underfloor heating:
▪ In heating: 35°C
▪ In cooling: 20°C (only refreshment, no
real cooling allowed)
Bed rooms (additional zone) Heatpump convectors:
▪ In heating: 45°C
▪ In cooling: 12°C
Setup
C
A
E
B
D
a
b
a
d e
c
A Additional leaving water temperature zone
B Room 1
C Room 2