Daikin Altherma 3 R F Installer's Reference Manual page 158

10 | Configuration
Installer reference guide
158
Control
Leaving water
External room
thermostat
Room thermostat
# Code
[2.9] [C‑07]
Ext thermostat type
Only applicable in external room thermostat control.
Following combinations are possible to control the unit (not applicable when
[C‑07]=0):
▪ [C‑07]=2 (Room thermostat)
a
a User interface at indoor unit
b Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat) at main
zone
c External room thermostat at additional zone
▪ [C‑07]=1 (External room thermostat)
a
a User interface at indoor unit
b External room thermostat at main zone
c External room thermostat at additional zone
NOTICE
If an external room thermostat is used, the external room thermostat will control the
room frost protection. However, the room frost protection is only possible if [C.2]
Space heating/cooling=On.
In this control...
Unit operation is decided based on the leaving water
temperature regardless the actual room temperature
and/or heating demand of the room.
Unit operation is decided by the external thermostat or
equivalent (e.g. heat pump convector).
Unit operation is decided based on the ambient
temperature of the user interface used as a room
thermostat.
▪ 0: Leaving water
▪ 1: External room thermostat
▪ 2: Room thermostat
b
b
Description
c
c
ERGA04~08E + EHVZ04+08S18+23E
Daikin Altherma 3 R F
4P629093-1B – 2022.05