Daikin Altherma 3 H HT EPRA14DAW1, Installer'S Reference Manual

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9 | Configuration
Installer reference guide
144
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1A – 2020.01
# Code Description
[2.7] [2‑0C] Emitter type :
▪ 0:
Underfloor heating
▪ 1: Fancoil unit
▪ 2: Radiator
The setting Emitter type influences the space heating setpoint range and the
target delta T in heating as follows:
Emitter type Main
zone
Space heating setpoint
range [9‑01]~[9‑00]
Target delta T in heating
[1‑0B]
0: Underfloor
heating
Maximum 55°C Variable (see [2.B])
1: Fancoil unit Maximum 55°C Variable (see [2.B])
2: Radiator Maximum 70°C Fixed 10°C
NOTICE
The maximum setpoint in space heating depends on the emitter type as can be seen
in above table. If there are 2 water temperature zones, then the maximum setpoint
is the maximum of the 2 zones.
CAUTION
NOT configuring the system in the following way can cause damage to the heat
emitters. If there are 2 zones, it is important that in heating:
▪
the zone with the lowest water temperature is configured as the main zone, and
▪
the zone with the highest water temperature is configured as the additional zone.
CAUTION
If there are 2 zones and the emitter types are wrongly configured, water of high
temperature can be sent towards a low temperature emitter (underfloor heating). To
avoid this:
▪
Install an aquastat/thermostatic valve to avoid too high temperatures towards a
low temperature emitter.
▪
Make sure you set the emitter types for the main zone [2.7] and for the
additional zone [3.7] correctly in accordance with the connected emitter.
INFORMATION
Depending on the target delta T, the average emitter temperature will vary. To
counteract the effect on the average emitter temperature due to a higher delta T
target, the leaving water setpoint (fixed or weather dependent) can be adjusted.
Setpoint range
To prevent a wrong (i.e. too hot or too cold) leaving water temperature for the
main leaving water temperature zone, limit its temperature range.