Esp Curve: Indoor Unit - Daikin Altherma 3 R F Installer's Reference Manual

14 | Technical data

14.8 ESP curve: Indoor unit

Installer reference guide
208
Note: A flow error will occur when the minimum water flow rate is not reached.
A (kPa)
70
60
50
40
30
20
10
0
0 5 10
A External static pressure in the space heating circuit
B Water flow rate through the unit in the space heating circuit
C Operation range
Additional/direct zone
Main/mixed zone
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.
▪ Water quality must be according to EU directive 98/83 EC.
C
15 20 25 30
4D112013
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA6V+9W7
35
B (l/min)
Daikin Altherma 3 R F
4P618957-1 – 2020.03