16 | Technical data
Installer reference guide
281
EPRA08~12EAV3+W1 + ETVH12SU18+23EA6V
Daikin Altherma 3 H MT F
4P644482-1 – 2021.03
16.7 ESP curve: Indoor unit
Note: A flow error will occur when the minimum water flow rate is not reached.
FED
0 5
70
60
80
50
40
30
20
10
0
10 15 20 25 30 35 40 45
A (kPa)
B (l/min)
C
A External static pressure in the space heating/cooling circuit
B Water flow rate through the unit in the space heating/cooling circuit
C Operation range
D Minimum flow during normal operation
E Minimum flow during backup heater operation
F Minimum flow during defrost heater operation
Dashed lines: Operation area is extended to lower flow rates only in case the unit
operates with heat pump only. (Not in startup, no backup heater operation, no
defrost operation.)
Notes:
▪ Selecting a flow outside the operating area can damage the unit or cause the unit
to malfunction. See also the minimum and maximum allowed water flow range in
the technical specifications.
▪ Make sure water quality complies with EU directive 2020/2184.
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