Daikin EPRA18DAV3 Installer's Reference Manual page 181

Glycol filled system
Balancing
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P587502-1B – 2020.12
HP forced off
HP forced off mode can be activated to allow the backup heater to provide
domestic hot water and space heating. When this mode is activated:
▪ Heat pump operation is NOT possible
▪ Cooling is NOT possible
# Code
[9.5.2] [7-06]
Glycol Filled system
This setting gives the installer the possibility to indicate whether the system is filled
with glycol or water. This is important in case glycol is used to protect the water
circuit against freezing. If NOT set correctly, the liquid in the piping can freeze.
# Code
N/A [E-0D]
Priorities
For systems with an integrated domestic hot water tank.
#
[9.6.1] [5‑02]
[9.6.2] [5‑03]
Activation of the HP forced off mode:
▪ 0: disabled
▪ 1: enabled
Glycol Filled system: Is the system filled
with glycol?
▪ 0: No
▪ 1: Yes
Code
Space heating priority: Defines
whether backup heater will assist the heat
pump during domestic hot water operation.
For optimal operation and lowest power
consumption, it is strongly recommended to
keep the default setting (0).
If the backup heater operation is limited
([4‑00]=0) and the outdoor temperature is
lower than setting [5‑03], the domestic hot
water will not be heated with the backup
heater.
Priority temperature: Used for
calculation of anti-recycling timer. If [5‑02]=1, it
defines the outdoor temperature below which
the backup heater will assist during domestic
hot water heating.
[5‑01] Equilibrium temperature and [5‑03]
Space heating priority temperature are related
to backup heater. So, you must set [5‑03] equal
or a few degrees higher than [5‑01].
9 Configuration
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Description
Description
Description
Installer reference guide
181