9
x
Technical data
Daikin EKHWP/EKHWC/EKHWD
Daikin High-efficiency hot water storage tank
008.1618744 – 03/2017
Installation and operating instructions
31
9.2
Performance diagrams
9.2.1 EKHWD / EKHWC
9.2.2 EKHWP
S#Q EKHWC500B
S#H EKHWCH500B
S#I
EKHWCB500B
S#J EKHWCH300B
S#K EKHWCH500PB
S#L EKHWCB500PB
S#M EKHWCH300PB
S#O EKHWDH500B
S#P EKHWDB500B
Z/ L/min
Draw-off rate in litres per
minute
V
Zmax
/L
Maximum draw-off rate in
litres
Hot water volume with reheating at a rating of 20 kW
(T
KW
= 10 °C,T
WW
= 40 °C,T
SP
= 60 °C)
Fig. 9-1
Hot water output with respect to draw-off rate
Draw-off rates >36 l/min can, in certain rare circum-
stances, lead to noises in the domestic water heat
exchanger of the hot water storage tank.
a
Drinking water heat exchanger
(EKHWDH500B, EKHWDB500B, EKHWC500B, EKHWCH500B,
EKHWCH500PB, EKHWCB500B, EKHWCB500PB)
b
Drinking water heat exchanger
(EKHWCH300B, EKHWCH300PB)
c
Storage tank charging heat exchanger 1 or 2
(EKHWDH500B, EKHWDB500B, EKHWCH500B,
EKHWCH500PB, EKHWCB500B, EKHWCB500PB)
d
Storage tank charging heat exchanger 1
(EKHWCH300B, EKHWCH300PB)
e
Heating support heat exchanger
(EKHWCH500B, EKHWCH500PB, EKHWCB500B,
EKHWCB500PB)
p/mbar
Pressure drop in millibar
m/ L/h
Flow rate in litres per hour
m/ L/h
Flow rate in litres per minute
Fig. 9-2
Pressure drop characteristic for the heat exchanger
0
5
Z / L/min
200
400
600
1000
10
15
20
25
30
V
/ L
Z,max
800
1200
S#H; S#K
S#I; S#L
S#J; S#M
S#P; S#O
S#B EKHWP500B
S#D EKHWP300B
S#F EKHWP500PB
S#G EKHWP300PB
Z/ L/min
Draw-off rate in litres per
minute
V
Zmax
/L
Maximum draw-off rate in
litres
Hot water volume without re-heating (T
KW
= 10 °C, T
WW
= 40 °C, T
SP
= 60 °C).
Fig. 9-3
Hot water output with respect to draw-off rate
Draw-off rates >36 l/min can, in certain rare circum-
stances, lead to noises in the domestic water heat
exchanger of the hot water storage tank.
a
Drinking water heat exchanger
(EKHWP500B, EKHWP500PB)
b
Drinking water heat exchanger
(EKHWP300B, EKHWP300PB)
c
Storage tank charging heat exchanger 1
(EKHWP500B, EKHWP500PB)
d
Storage tank charging heat exchanger 1
(EKHWP300B, EKHWP300PB)
f
Heating support heat exchanger
(EKHWP500B, EKHWP500PB)
p/mbar
Pressure drop in millibar
m/ L/h
Flow rate in litres per hour
m/ L/h
Flow rate in litres per minute
Fig. 9-4
Pressure drop characteristic for the heat exchanger
f
Summary of Contents for EKHWP300B
Page 2: ......
