Daikin Altherma 3 R F Installer's Reference Manual page 161

ERGA04~08EA + EHVH/X04+08S18+23EA/EJ
Daikin Altherma 3 R F
4P629086-1A – 2021.11
If...
Space heating/cooling is OFF and
the outdoor ambient temperature
drops below 4°C
Space heating/cooling is ON and
the operation mode is "heating"
Space heating/cooling is ON and
the operation mode is "cooling"
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...
Space heating/cooling is OFF and
the outdoor ambient temperature
drops below 4°C
Space heating/cooling is ON, the
external room thermostat is "Thermo
OFF" and the outdoor temperature
drops below 4°C
Space heating/cooling is ON and
the external room thermostat is
"Thermo ON"
In case of two leaving water temperature zones:
If...
Space heating/cooling is OFF and
the outdoor ambient temperature
drops below 4°C
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
Space heating/cooling is ON and
the operation mode is "cooling"
Room thermostat control ([C‑07]=2)
10
|
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.
The unit will supply leaving water to the
heat emitters to heat up the room
according to normal logic.
There is no room frost protection.
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.
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.
Room frost protection is guaranteed by
the normal logic.
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.
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.
There is no room frost protection.
Configuration
Installer reference guide
161