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Configuration
Installer reference guide
141
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
Unit control method ([C‑07])
Room frost protection
Room thermostat control ([C‑07]=2)
Allow for the room thermostat to take
care of room frost protection:
▪
Set [2‑06] to "1"
▪
Set the room antifrost temperature
([2‑05]).
External room thermostat control
([C‑07]=1)
Allow for the external room thermostat
to take care of room frost protection:
▪
Turn
ON
the
leaving
water
temperature home page.
Leaving water temperature control
([C‑07]=0)
Room frost protection is NOT
guaranteed.
NOTICE
Room frost protection.
Even if you turn OFF the leaving water temperature (main +
additional) control via the home pages (
LWT main
+
LWT add
), room frost
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
Description
N/A
[2-06]
Room frost protection
▪
0: disabled
▪
1: enabled
N/A
[2-05]
Room antifrost temperature
4°C~16°C
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.
