Information on performance factor N
L
The performance factor N
L
depends on the cylinder storage temper-
ature T
cyl
.
Standard values
■ T
cyl
= 60 °C → 1.0 × N
L
■ T
cyl
= 55 °C → 0.75 × N
L
■ T
cyl
= 50 °C → 0.55 × N
L
■ T
cyl
= 45 °C → 0.3 × N
L
Peak output (over 10 minutes)
Relative to performance factor N
L
.
DHW heating from 10 to 45 °C.
Cylinder capacity l 160 200 300 500
Peak output (l/10 min) at heating water flow temperature
90 °C 251 340 430 634
80 °C 237 314 419 600
70 °C 207 285 408 556
Max. draw-off rate (over 10 minutes)
Relative to performance factor N
L
.
With reheating.
DHW heating from 10 to 45 °C.
Cylinder capacity l 160 200 300 500
Max. draw-off rate (l/min) at heating water flow tempera-
ture
90 °C 25.1 34.0 43.0 63.4
80 °C 23.7 31.4 41.9 60.0
70 °C 20.7 28.5 40.8 55.6
Drawable water volume
Cylinder content heated to 60 °C.
Without reheating.
Cylinder capacity l 160 200 300 500
Draw-off rate l/min 10 10 15 15
Drawable water volume
Water at t = 60 °C (constant)
l 133 155 240 420
Heat-up time
The specified heat-up times will be achieved when the maximum
continuous output of the DHW cylinder is made available at the rele-
vant heating water flow temperature and when DHW is heated from
10 to 60 °C.
Cylinder capacity l 160 200 300 500
Heat-up time (min.) at heating water flow temperature
90 °C 17 19 21 25
80 °C 20 24 30 33
70 °C 30 37 40 46
DHW cylinders
(cont.)
82
VIESMANN
VITOSOL
7
5822 440 GB
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