Daikin Altherma 3 H HT F Series Installer's Reference Manual page 41

EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07
A Main leaving water temperature zone
B One single room
a Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat)
b Non-return valve (field supply)
c Shut-off valve (field supply)
d Auxiliary boiler (field supply)
e Auxiliary boiler thermostat (field supply)
f Aquastat valve (field supply)
NOTICE
▪
Make sure the auxiliary boiler and its integration in the system complies with
applicable legislation.
▪
Daikin is NOT responsible for incorrect or unsafe situations in the auxiliary boiler
system.
▪ Make sure the return water to the heat pump does NOT exceed 60°C. To do so:
- Set the desired water temperature via the auxiliary boiler controller to
maximum 60°C.
- Install an aquastat valve in the return water flow of the heat pump. Set the
aquastat valve to close above 60°C and to open below 60°C.
▪ Install non-return valves.
▪ Make sure to only have one expansion vessel in the water circuit. An expansion
vessel is already pre-mounted in the indoor unit.
▪ Install the digital I/O PCB (option EKRP1HBAA).
▪ Connect X1 and X2 (changeover to external heat source) on the digital I/O PCB to
the auxiliary boiler thermostat. See
4
heat source" [ 111].
▪ To setup the heat emitters, see
4
system" [ 28].
Configuration
Via the user interface (configuration wizard):
▪ Set the use of a bivalent system as external heat source.
▪ Set the bivalent temperature and hysteresis.
Changeover to external heat source decided by an auxiliary contact
▪ Only possible in external room thermostat control AND one leaving water
temperature zone (see
b
b
c
d
e
c
A
f
"8.3.8 To connect the changeover to external
"5.2 Setting up the space heating/cooling
"5.2 Setting up the space heating/cooling
5 Application guidelines
|
B
a
system" [
Installer reference guide
4
28]).
41