Daikin Altherma 3 R F EHVZ04S18E 6V Series, Installer'S Reference Manual

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10 | Configuration
Installer reference guide
154
ERGA04~08EAV3(A) + 08S18+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
# Code Description
[4.4] [7‑02] ▪ 1: Dual zone
Two leaving water temperature zones. The
main leaving water temperature zone consists
of the higher load heat emitters and a mixing
station to achieve the desired leaving water
temperature. In heating:
a
b
c
a Additional LWT zone: Highest temperature
b Main LWT zone: Lowest temperature
c Mixing station
NOTICE
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.
NOTICE
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.
Pump operation mode
When the space heating operation is OFF, the pump is always OFF. When space
heating operation is ON, you have the choice between these operation modes: