Daikin ERLA03DAV3 - Page 79

8 | Piping installation
Installer reference guide
79
ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10
M2
aaa
M3M1
M2
aaa
M3M1
b
cc
c
c
a Individual room thermostat (optional)
b Overpressure bypass valve (field supply). The installation of a field-supplied
overpressure bypass valve is recommended.
c Shut-off valve
Maximum water volume
Use the following graph to determine the maximum water volume for the
calculated pre-pressure.
0.3
0.5
1
1.5
2
2.4
5020 100 150 200 250 290
a
b
a Pre-pressure (bar)
b Maximum water volume (l)
Example: Maximum water volume and expansion vessel pre-pressure