Daikin Altherma 3 M Installer's Reference Manual page 77

EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
NOTICE
When circulation in each space heating/cooling loop is controlled by remotely
controlled valves, it is important that the minimum water volume is guaranteed,
even if all of the valves are closed.
d
a User interface (delivered as accessory)
b Individual room thermostat (option)
c Overpressure bypass valve (field supply)
d Shut-off valve (delivered as accessory)
M1...3 Individual motorised valve to control each loop (field supply)
Maximum water volume
NOTICE
The maximum water volume depends on whether glycol is added to the water
circuit. For more information on the addition of glycol, refer to
circuit against
Use the following graph to determine the maximum water volume for the
calculated pre-pressure.
A
2.4
2.1
1.8
1.5
1.2
1
0.9
0.6
0.3
20 70
A Pre-pressure (bar)
B Maximum water volume (l)
Water
Water + glycol
Example: Maximum water volume and expansion vessel pre-pressure
M1
a
b b
freezing" [ 4 82].
200 220
120 170
8 Piping installation
|
c
M2 M3
b
"To protect the water
270 290
320
B
Installer reference guide
77