Daikin Altherma 3 HT Installer's Reference Manual page 210

10 | Configuration
Bivalent
Installer reference guide
210
You can calibrate the external outdoor ambient temperature sensor. It is possible
to give an offset to the thermistor value. This setting can be used to compensate
for situations where the external outdoor ambient sensor cannot be installed on
the ideal installation location.
# 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.
INFORMATION
Bivalent is only possible in case of 1 leaving water temperature zone with:
▪
room thermostat control, OR
▪
external room thermostat control.
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]
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 in space heating when
the outdoor ambient temperature is low.
During bivalent operation, the heat pump will
run in domestic hot water operation when tank
heat-up is required, or is turned OFF. Set this
value in case an auxiliary boiler is used.
EPRA14~18D + ETVH/X16S18+23E
Daikin Altherma 3 H HT F
4P644737-1A – 2022.03