Daikin Altherma 3 R F Installer's Reference Manual page 87

ERGA04~08E + EHVZ04+08S18+23E
Daikin Altherma 3 R F
4P629093-1B – 2022.05
a b c d
a Outdoor unit
b Indoor unit
c Heat exchanger
d Backup heater
e Motorised 3‑way valve (mixing the main zone)
f Additional pump
g Main pump
h Shut-off valve
i Collector (field supply)
j Overpressure bypass valve (delivered as accessory)
FHL1...3 Floor heating loop (field supply)
HPC1...3 Heat pump convector (field supply)
T1...3 Individual room thermostat (optional)
M1...3 Individual motorised valve to control loop FHL1...3 and HPC1...3 (field supply)
INFORMATION
The pump of the additional zone ensures that the minimum flow rate for correct
operation of the unit is guaranteed.
Maximum water volume
Use the following graph to determine the maximum water volume for the
calculated pre-pressure.
a
2.4
2
1.5
1
0.5
0.3
20
50 100
a Pre-pressure (bar)
b Maximum water volume (l)
Example: Maximum water volume and expansion vessel pre-pressure
i
T1 T2 T3
M1 M2 M3
e h h
HPC1 HPC2
i
T1 T2
M
M1 M2
f g h h
FHL1
FHL2
150 200 250
8 Piping installation
|
j
HPC3
T3
M3
FHL3
b
290
Installer reference guide
87