ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA/DJ3V+6V+9W7
Daikin Altherma 3 R F
4P618947-1 – 2020.03
a
b c d e
g
M
n
5‒0
a
Outdoor unit
b
Indoor unit
c
Heat exchanger
d
Backup heater
e
Pump
f
Shut-off valve
g
Motorised 3‑way valve
h
Non-return valve (field supply)
i
Shut-off valve (field supply)
j
Collector (field supply)
k
Auxiliary boiler (field supply)
l
Aquastat valve (field supply)
m
DHW tank
n
Heat exchanger coil
FHL1...3
Under floor heating
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 55°C. To do so:
-
Set the desired water temperature via the auxiliary boiler controller to
maximum 55°C.
-
Install an aquastat valve in the return water flow of the heat pump. Set the
aquastat valve to close above 55°C and to open below 55°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. See
4
source" [
103].
▪
To setup the heat emitters, see
4
system" [
23].
5
f
h
j
h
f
i
k
l
i
FHL1
FHL2
m
"7.9.15 To connect the changeover to external heat
"5.2 Setting up the space heating/cooling
Application guidelines
|
FHL3
Installer reference guide
35