Esp Curve: Indoor Unit - Daikin ETVH16S18EA6V Installer's Reference Manual

16 | Technical data

16.6 ESP curve: Indoor unit

Installer reference guide
268
Note: A flow error will occur when the minimum water flow rate is not reached.
A (kPa)
120
110
100
90
80
70
60
50
40
30
20
10
0
0 5 10 15
D E
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.
▪ Water quality must be according to EU directive 98/83 EC.
C
20 25 30 35 40 45
F
50 55 60 65
B (l/min)
4D124954
EPRA14~18DAV3+W1 + ETVH/X16S18+23EA6V+9W
Daikin Altherma 3 H HT F
4P644737-1 – 2021.02