Viessmann VITOGAS - Page 24

h
g
a
b
BÖ
HR
Z
WW
HV
KW/E
c
d
e
f
SPR
BÖ Inspection and cleaning aperture
E Drain
HR Heating water return
HV Heating water flow
KW Cold water
SPR Sensor well for cylinder temperature sensor or control thermo-
stat
WW DHW
Z DHW circulation
Dimensions
Cylinder capacity l 130 160 200
a mm 633 633 633
b mm 667 667 667
c mm 1111 1203 1423
d mm 975 1067 1287
e mm 892 984 1204
f mm 785 877 1097
g mm 155 155 155
h mm 77 77 77
Performance factor N
L
to DIN 4708
Cylinder storage temperature T
cyl
= cold water inlet temperature +
50 K
+5 K/-0 K
Cylinder capacity l 130 160 200
Performance factor N
L
at heating water flow temperature
90 °C 2.4 3.3 6.8
80 °C 1.9 2.9 5.2
70 °C 1.4 2.0 3.2
Performance factor N
L
The performance factor N
L
varies according to the cylinder storage
temperature T
cyl
.
Standard values for
■
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
DHW cylinder
(cont.)
24
VIESMANN
VITOGAS
3
5822 428 GB