Daikin Altherma 3 R F Installer's Reference Manual page 152

10 | Configuration
Installer reference guide
152
Define a heating schedule of the room temperature in [1.2] Heating schedule .
See "10.3.7 Schedule screen:
Cooling schedule
Only applicable for reversible models.
Define a cooling schedule of the room temperature in [1.3] Cooling schedule.
See "10.3.7 Schedule screen:
Antifrost
Room frost protection [1.4] prevents the room from getting too cold. This setting
behaves differently depending on the set unit control method [2.9]. Perform
actions according to the table below.
Main zone unit control method [2.9]
Leaving water temperature control
([C‑07]=0)
External room thermostat control
([C‑07]=1)
Room thermostat control
([C‑07]=2)
INFORMATION
If a U4 error occurs, room frost protection is NOT guaranteed.
NOTICE
If the room Antifrost setting is active and a U4 error occurs, the unit will
automatically start the Antifrost function via the backup heater. If the backup
heater is not allowed for room frost protection during a U4 error, the room
Antifrost setting MUST be disabled.
NOTICE
Room frost protection. Even if you turn OFF space heating/cooling operation ([C.2]:
Operation > Space
enabled– can still activate. However, for leaving water temperature control and
external room thermostat control, the protection is NOT guaranteed.
For more detailed information about room frost protection in relation to the
applicable unit control method, see the sections below.
Leaving water temperature control ([C‑07]=0)
Under leaving water temperature control, room frost protection is NOT
guaranteed. However, if room antifrost [1.4] is activated, limited frost protection
by the unit is possible:
4
Example" [ 141].
4
Example" [ 141].
Room frost protection is NOT guaranteed.
Allow for the external room thermostat to
take care of room frost protection:
▪ Set [C.2]
cooling=On.
Allow for the user interface used as room
thermostat to take care of room frost
protection:
▪ Set antifrost [1.4.1] Activation=Yes.
▪ Set the temperature of the antifrost
function in [1.4.2] Room setpoint.
heating/cooling), room frost protection operation –if
Description
Space heating/
ERGA04~08EAV3(A) + EHVH04+08SU18+23EA6V
Daikin Altherma 3 R F
4P629090-1 – 2020.08