Daikin Altherma 3 R F Installer's Reference Manual page 120

9 | Configuration
Installer reference guide
120
Room frost protection
Room frost protection prevents the room from getting too cold. This setting
behaves differently depending on the set unit control method ([C‑07]). Perform
actions according to the table below:
Unit control method ([C‑07])
Room thermostat control ([C‑07]=2)
External room thermostat control
([C‑07]=1)
Leaving water temperature control
([C‑07]=0)
NOTICE
Room frost protection. Even if you turn OFF the leaving water temperature (main +
additional) control via the home pages (LWT
protection –if enabled– will remain active.
INFORMATION
If a U4 error occurs, room frost protection is NOT guaranteed.
See the sections below for detailed information on room frost protection in
relation to the applicable unit control method.
[C‑07]=2: room thermostat control
Under room thermostat control, room frost protection is guaranteed, even if the
room temperature home page is OFF on the user interface. When room frost
protection ([2‑06]) is enabled and the room temperature drops below the room
antifrost temperature ([2‑05]), the unit will supply leaving water to the heat
emitters to heat up the room again.
# Code
N/A [2-06]
N/A [2-05]
INFORMATION
If a U5 error occurs, room frost protection is NOT guaranteed,
Room frost protection
Allow for the room thermostat to take
care of room frost protection:
▪ Set [2‑06] to "1"
▪ Set the room antifrost temperature
([2‑05]).
Allow for the external room thermostat
to take care of room frost protection:
▪ Turn ON
temperature home page.
Room frost protection is NOT
guaranteed.
main + LWT
Description
Room frost protection
▪ 0: disabled
▪ 1: enabled
Room antifrost temperature
4°C~16°C
the leaving water
add), room frost
ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1 – 2019.10