Daikin Altherma 3 R F Installer's Reference Manual page 132

9 | Configuration
Installer reference guide
132
[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,
NOTICE
If Emergency is set to Manual ([A.6.C]=0), and the unit is triggered to start
emergency operation, the user interface will ask confirmation before starting. Room
frost protection is active even if the user does NOT confirm emergency operation.
[C‑07]=1: external room thermostat control
Under external room thermostat control, room frost protection is guaranteed by
the external room thermostat, provided that the leaving water temperature home
page is ON on the user interface, and the auto emergency setting ([A.6.C]) is set to
"1".
Additionally, limited frost protection by the unit is possible:
In case of...
One leaving water temperature zone
Description
Room frost protection
▪ 0: disabled
▪ 1: enabled
Room antifrost temperature
4°C~16°C
...then the following applies:
▪ When the leaving water temperature
home page is OFF and the outdoor
ambient temperature drops below
4°C, then the unit will supply leaving
water to the heat emitters to heat up
the room again, and the leaving water
temperature setpoint will be lowered.
▪ When the leaving water temperature
home page is ON, the external room
thermostat is "Thermo OFF" and the
outdoor ambient temperature drops
below 4°C, then the unit will supply
leaving water to the heat emitters to
heat up the room again and the
leaving water temperature setpoint
will be lowered.
▪ When the leaving water temperature
home page is ON and the external
room thermostat is "Thermo ON",
then room
guaranteed by the normal logic.
frost protection is
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10