Daikin Altherma 3 H F Installer's Reference Manual page 161

Bivalent
EPGA11~16DAV3 + EAVH16SU18+23DA6V
Daikin Altherma 3 H F
4P606487-1 – 2019.12
# Code
[9.B.2] [2-0B]
Averaging time
The average timer corrects the influence of ambient temperature variations. The
weather-dependent setpoint calculation is done on the average outdoor
temperature.
The outdoor temperature is averaged over the selected time period.
# Code
[9.B.3] [1-0A]
Bivalent
Only applicable in case of auxiliary boiler.
About bivalent
The purpose of this function is to determine which heating source can/will provide
the space heating, either the heat pump system or the auxiliary boiler.
# Code
[9.C.1] [C-02]
▪ If Bivalent is enabled: When the outdoor temperature drops below the
bivalent ON temperature (fixed or variable based on energy prices), the space
heating by the indoor unit stops automatically and the permission signal for the
auxiliary boiler is active.
▪ If Bivalent is disabled: Space heating is only done by the indoor unit within the
operation range. The permission signal for the auxiliary boiler is always inactive.
The switch-over between the heat pump system and the auxiliary boiler is based
on the following settings:
▪ [C‑03] and [C‑04]
▪ Electricity and gas prices ([7.5.1], [7.5.2], [7.5.3], and [7.6])
Description
Ext. amb. sensor offset: Offset on the
ambient temperature measured on the external
outdoor temperature sensor.
▪ –5°C~5°C, step 0.5°C
Description
Averaging time:
▪ 0: No averaging
▪ 1: 12 hours
▪ 2: 24 hours
▪ 3: 48 hours
▪ 4: 72 hours
Description
Bivalent: Indicates if the space heating is also
performed by means of another heat source than
the system.
▪ 0 No: Not installed
▪ 1 Yes: Installed. The auxiliary boiler (gas boiler,
oil burner) will operate when the outdoor
ambient temperature is low. During bivalent
operation, the heat pump is turned off. Set this
value in case an auxiliary boiler is used.
8 Configuration
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Installer reference guide
161