8 Technical data
Installation and operating manual
26
EKHW(D/C/P)(300/500)(P)B
Daikin Altherma ST (Hot water storage tank)
008.1633099_00 – 06/2020
8.2.2
EKHWC
8‒2 Unpressurised (DrainBack) - DB
Model Identifier (x=A, B, C, …)
EKHWCH300Bx
EKHWC500Bx
EKHWCH500Bx
EKHWCB500Bx
Unit
Product data related to regulation (EU) 812/2013 and regulation (EU) 814/2013
Energy efficiency class
—
B
Standing loss S
W
64
72
Hot water storage tank volume V
litres
294
477
Specific standing loss (EN 12977) (UA)
sb, s, a
W/K
1.43
1.59
1.59
1.59
Volume of the non-solar heat storage V
bu
litres
288
0
322
322
Basic data
Empty weight
kg
49
65
70
76
Total filled weight
kg
343
542
547
553
Dimensions (L×W×H)
cm
59.5×61.5×164.6
79×79×165.8
79×79×165.8
79×79×165.8
Tilt dimension
cm
175
184
184
184
Maximum permissible storage water
temperature
°C
85
85
85
85
Standby heat expenditure at Δ45 K
kWh/24 h
1.5
1.7
1.5
1.7
Drinking water heat exchanger (stainless steel 1.4404)
Water capacity heat exchanger
litres
18.6
24.5
Maximum operating pressure
bar
10
Domestic water heat exchanger surface
m
2
3.8
4.9
1st storage tank charging heat exchanger (stainless steel 1.4404)
Water capacity heat exchanger
litres
9.7
—
10
Heat exchanger surface area
m
2
1.9
—
1.95
2nd storage tank charging heat exchanger (stainless steel 1.4404)
Water capacity heat exchanger
litres
—
—
—
10.9
Heat exchanger surface area
m
2
—
—
—
2.2
Pressurised solar heat exchanger (stainless steel 1.4404)
Water capacity heat exchanger
litres
—
—
—
—
Heat exchanger surface area
m
2
—
—
—
—
Solar heating backup (stainless steel 1.4404)
Water capacity heat exchanger
litres
—
3.8
Heat exchanger surface area
m
2
—
0.74
Thermal output data
Efficiency characteristic N
L
acc. to DIN 4708
(1)
—
2.2
—
2.3
2.3 / 2.5
(2)
Continuous output Q
D
according to DIN 4708
kW
27
—
35
35 / 45
(2)
Maximum draw-off rate for the duration of
10 min (reheating with 35 kW)
(3)
l/min
21
—
22
22 / 24
(2)
Hot water quantity without reheating at 15 l/min
draw-off rate
(3)
litres
200
230
230 / 405
(2)
Hot water volume with reheating with 20 kW at
15 l/min draw-off rate
(3)
litres
400
—
500
500 / 858
(2)
Short-term water quantity in 10 min
(3)
litres
210
—
220
220 / 240
(2)
Pipe connections
Cold and hot water
Inches
1" AG (outer thread)
Heating feed and return flow
Inches
1" AG (outer thread)
Solar connections
Inches
1" IG (internal thread) / DN25
(1)
With post-charging at 35 kW, 80°C flow temperature, 65°C storage tank temperature (T
SP
), 45°C hot water temperature (T
WW
), 10°C cold water
temperature (T
KW
).
(2)
With parallel connection of both storage tank charging heat exchangers.
(3)
With 40°C hot water temperature, 10°C cold water temperature and 60°C storage tank temp. at draw-off start.
Содержание EKHWCH300B
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