Daikin Altherma 3 GEO Series - Setting up Passive Cooling

5 | Application guidelines
Installer reference guide
51
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
▪ Setup and configuration: See "8.2.2 To connect the remote outdoor
sensor" [4 88] (+ the installation manual of the remote outdoor sensor
(delivered as accessory)).
5.8 Setting up passive cooling
INFORMATION
Restriction: Passive cooling is only possible for:
▪ Heating only models
▪ Brine temperatures between 0 and 20°C
Passive cooling is cooling without using the compressor. Here the brine circuit
must be branched over the cooling fan coils.
Setup
a
b
b
c
d
e
h
g
f
a Thermostat
b Fan coil units
c External circulation pump
d Non-return valve
e Brine pump
f Plate heat exchanger
g Hydro
h Remote outdoor sensor
▪ A thermostat input contact creates a demand for the brine pump to run. For
more information, see "8.2.12 To connect the thermostat for passive
cooling"[499].
▪ An external circulation pump is required and needs to be controlled by the
external thermostat.
▪ A non-return valve must prevent backflow to the inlet of the passive cooling loop
and force the brine to go through the borehole.
Configuration
None.