Esp Curve: Indoor Unit - Daikin Altherma EHVH08SU18CB6W Installer's Reference Manual

14.7

ESP curve: Indoor unit

Note: A flow error will occur when the minimum water flow rate is not
reached.
EHVH/X04=EHVH/X04
A (kPa)
80
70
60
50
40
30
20 C
10
0
0 5 10 15
EHVH/X08=EHVH/X08
A (kPa)
80
70
60
50
40
30
C
20
10
0
0 5 10 15
A External static pressure
B Water flow rate
C Operation range
ERLQ004~008CA + EHVH04+08SU18+26CB6W
Daikin Altherma – Low temperature split
4P449978-1B – 2018.07
20 25 30
B (l/min)
4D090626-1
20 25 30
B (l/min)
4D090626-1
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).
ESP=External static pressure [kPa] in the space heating/cooling
circuit.
Flow=Water flow through the unit in the space heating/cooling
circuit.
Notes:
▪ Selecting a flow outside the area of operation can cause damage
or malfunction of the unit. See also the minimum and maximum
allowed water flow range in the technical specifications.
▪ Water quality MUST be according to EN directive EC98/83EC.
14 Technical data
Installer reference guide
95