Daikin ETVZ16S18EA6V, Installer'S Reference Manual

Page: 139 / 272

10 | Configuration
Installer reference guide
139
EPRA14~W1 + ET9W
Daikin Altherma 3 H HT F
4P644739-1 – 2021.02
If... Then...
▪ Space heating/cooling = Off ,
and
▪ Outdoor ambient temperature drops
below 6°C
▪ The unit will supply leaving water to
the heat emitters to heat up the room
again, and
▪ the temperature setpoint of the
leaving water will be lowered.
▪ Space heating/cooling = On , and
▪ Operation mode = Heating
The unit will supply leaving water to the
heat emitters to heat up the room
according to normal logic.
▪
Space heating/cooling
=
On
, and
▪ Operation mode = Cooling
There is no room frost protection.
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 1 leaving water temperature zone:
If... Then...
▪ Space heating/cooling = Off ,
and
▪ Outdoor ambient temperature drops
below 6°C
▪ The unit will supply leaving water to
the heat emitters to heat up the room
again, and
▪ the temperature setpoint of the
leaving water will be lowered.
▪ Space heating/cooling = On , and
▪ The external room thermostat is
"Thermo OFF", and
▪ Outdoor temperature drops below
6°C
▪ The unit will supply leaving water to
the heat emitters to heat up the room
again, and
▪ the temperature setpoint of the
leaving water will be lowered.
▪ Space heating/cooling = On , and
▪ The external room thermostat is
"Thermo ON"
Room frost protection is guaranteed by
the normal logic.
In case of 2 leaving water temperature zones:
If... Then...
▪ Space heating/cooling = Off ,
and
▪ Outdoor ambient temperature drops
below 6°C
▪ The unit will supply leaving water to
the heat emitters to heat up the room
again, and
▪ the temperature setpoint of the
leaving water will be lowered.