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Application guidelines
Installer reference guide
44
EPRA14~W1 + ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679467-1 – 2022.02
Configuration
Setting
Value
Unit temperature control:
▪
#: [2.9]
▪
Code: [C-07]
0 (
Leaving water
): Unit operation is
decided based on the leaving water
temperature.
Number of water temperature zones:
▪
#: [4.4]
▪
Code: [7-02]
0 (
Single zone
): Main
6.2.3 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)/increase (in cooling) 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
(a)
: 20°C (only refreshment,
no real cooling allowed)
Bed rooms (additional zone)
Heat pump convectors:
▪
In heating: 45°C
▪
In cooling: 12°C
(a)
In cooling mode, you can allow the underfloor heating (main zone) to provide refreshment
(no real cooling), or NOT allow it. See setup below.
Setup
Three bizone kit system variations are possible:
1
System without hydraulic separator:
