Viessmann VITOSOL SERIES Technical Manual page 89

DHW cylinders
(cont.)
500 litre capacity
BÖ
WW
Z
R
HV/SPR
HR
476 498
BÖ Inspection and cleaning aperture
E Drain
HR Heating water return
HV Heating water flow
KW Cold water
R Additional cleaning aperture or immersion heaters
Cylinder capacity
a
b
d
Performance factor N
L
To DIN 4708.
Cylinder storage temperature T = cold water inlet temperature +
cyl
+5 K/-0 K
50 K
Cylinder capacity
Performance factor N at a heating water flow temperature of
L
90 °C
80 °C
70 °C
Performance factor N
L
The performance factor N varies according to the cylinder storage
L
temperature T .
cyl
Standard values for
→ 1.0 × N
■ T = 60 °C
cyl L
→ 0.75 × N
■ T = 55 °C
cyl L
→ 0.55 × N
■ T = 50 °C
cyl L
→ 0.3 × N
■ T = 45 °C
cyl L
Peak output (over 10 minutes)
Relative to the performance factor N
DHW heating from 10 to 45 °C.
Cylinder capacity
Peak output (l/10 min) at heating water flow temperature
90 °C
80 °C
70 °C
VITOSOL
KW/E
l 500
mm 923
mm 974
mm 1740
.
L
SPR
914
b
SPR Cylinder temperature sensor of the cylinder temperature control
or the control thermostat
(Connector R 1" with fem. reducer to R ½" for sensor well)
WW DHW
Z DHW circulation
l 200
6.8
6.0
3.1
l 200
340
319
233
10
300 500
13.0 21.5
10.0 21.5
8.3 18.0
300 500
475 627
414 627
375 566
VIESMANN
89