Cylinder temperature sensor for solar operation
Arrangement of cylinder temperature sensor in the heating water
return HR
s
A
Cylinder temperature sensor (standard delivery of solar control
unit)
B
Threaded elbow with sensor well (standard delivery)
Performance factor N
L
To DIN 4708.
Upper indirect coil.
Cylinder storage temperature T
cyl
= cold water inlet temperature
+ 50 K
+5 K/-0 K
Cylinder capacity
l
300
400
500
Performance factor N
L
at heating water flow temperature
90 °C
1.6
3.0
6.0
80 °C
1.5
3.0
6.0
70 °C
1.4
2.5
5.0
Information regarding performance factor N
L
The performance factor N
L
depends on the cylinder storage tempera-
ture Tcyl.
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 the performance factor N
L
.
DHW heating from 10 to 45 °C.
Cylinder capacity
l
300
400
500
Peak output (l/10 min) at heating water flow temperature
90 °C
173
230
319
80 °C
168
230
319
70 °C
164
210
299
Max. draw-off rate (over 10 minutes)
Relative to the performance factor N
L
.
With reheating.
DHW heating from 10 to 45 °C.
Cylinder capacity
l
300
400
500
Max. draw-off rate (l/min) at heating water flow tempera-
ture
90 °C
17
23
32
80 °C
17
23
32
70 °C
16
21
30
Drawable water volume
Cylinder content heated to 60 °C.
Without reheating.
DHW cylinders
(cont.)
64
VIESMANN
VITOSOL
11
5822 440 GB
