Multiple Rooms - Two Lwt Zones - Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual

6 | Application guidelines
6.2.3 Multiple rooms – Two LWT zones
Installer reference guide
40
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
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)
Living room (main zone)
Bed rooms (additional zone)
Value
0 (Leaving water): Unit operation is
decided based on the leaving water
temperature.
0 (Single zone): Main
Heat emitters: Design temperature
Underfloor heating:
▪ In heating: 35°C
▪ In cooling: 20°C (only refreshment, no
real cooling allowed)
Heat pump convectors:
▪ In heating: 45°C
▪ In cooling: 12°C
EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04