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Configuration
Installer reference guide
150
ERGA04~08EA + 08S18+23EA
Daikin Altherma 3 R F
4P629093-1A – 2021.11
External room thermostat control
([C‑07]=1)
Under external room thermostat control, room frost protection is guaranteed by
the external room thermostat, provided that:
▪
[C.2]
Space heating/cooling
=
On
, and
▪
[9.5.1]
Emergency
=
Automatic
or
auto SH normal/DHW off
.
However, if [1.4.1]
Antifrost
is activated, limited frost protection by the unit is
possible.
In case of one leaving water temperature zone:
If...
Then...
Space heating/cooling
is OFF and
the outdoor ambient temperature
drops below 4°C
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.
Space heating/cooling
is ON, the
external room thermostat is "Thermo
OFF" and the outdoor temperature
drops below 4°C
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.
Space heating/cooling
is ON and
the external room thermostat is
"Thermo ON"
Room frost protection is guaranteed by
the normal logic.
In case of two leaving water temperature zones:
If...
Then...
Space heating/cooling
is OFF and
the outdoor ambient temperature
drops below 4°C
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.
Space heating/cooling
is ON, the
external room thermostat is "Thermo
OFF", the operation mode is "heating"
and the outdoor temperature drops
below 4°C
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.
Space heating/cooling
is ON and
the operation mode is "cooling"
There is no room frost protection.
Room thermostat control ([C‑07]=2)
During room thermostat control, room frost protection [2‑06] is guaranteed when
activated. If so, 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
[1.4.1]
[2-06]
Activation
:
▪
0
No
: Antifrost functionality is OFF.
▪
1
Yes
: Antifrost functionality is on.
[1.4.2]
[2-05]
Room setpoint
:
▪
4°C~16°C
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