Viessmann VITOCELL 100-U - Selection Diagrams, Cylinder Loading System Vitocell 100-L, Type CVL, in Conjunction with Vitotrans 222; Selection According to Continuous Output

Selection diagrams, cylinder loading system Vitocell 100-L, type CVL, in conjunction with Vitotrans 222
Performance factor N
L
*1
500 l
1000 l
750 l
2000 (2x1000) l
3000 (3x1000) l
1500 (2x750) l
20 10 40 60
240 220 200 180 160 140 120 100
80
0
50
100
150
200
Output to be transferred, in kW
at Tcyl=60 °C
Performance factor N
L
250
300
A
Vitotrans 222, 80 kW, part no. 7453 039
B
Vitotrans 222, 120 kW, part no. 7453 040
C
Vitotrans 222, 240 kW, part no. 7453 041
Peak output (during a 10 min period)
*2
1500 (2x750) l
20
0
40 60
240 220 200 180 160 140 120 100
1000
Output to be transferred, in kW
at Tcyl=60 °C
Peak output in litres/10 min at a draw-off temperature of 45 ºC
500
0
1500
2000
2500
3000
80
500 l
1000 l
750 l
2000 (2x1000) l
3000 (3x1000) l
A
Vitotrans 222, 80 kW, part no. 7453 039
B
Vitotrans 222, 120 kW, part no. 7453 040
C
Vitotrans 222, 240 kW, part no. 7453 041
3.2 Selection according to continuous output
In accordance with the required heating from 10 to 45 °C or from 10 to
60 °C and the planned flow temperature, the relevant column in the
following selection table is selected. The required continuous output
(see from page 22) is found in the column and the cylinder type in
the first column is read off.
Example:
DHW heating from 10 to 60 °C, flow temperature 70 °C
1
Required continuous output: 20 kW
2
, enamelled cylinder, adjacent
in the first column
3
: Vitocell 100-V 200 l or Vitocell 100-V 300 l
The most suitable DHW cylinder is now selected based on the speci-
fication and the continuous output diagrams in the Vitocell data-
sheets.
Note
The stated continuous output is only achieved when the rated boiler
heating output is greater than the continuous output.
When engineering systems with the specified or calculated continuous
output, select a matching circulation pump.
*1
The performance factor N
L
depends on the cylinder storage temperature 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
.
*2
The peak output over 10 minutes depends on the cylinder storage temperature T
cyl
.
Standard values: T
cyl
= 60 °C → 1.0 × peak output, T
cyl
= 55 °C → 0.75 × peak output, T
cyl
= 50 °C → 0.55 × peak output,
T
cyl
= 45 °C → 0.3 × peak output.
Selecting the cylinder type
(cont.)
DHW heating
VIESMANN
11
5414 646 GB
3