Viessmann VITOGAS - Page 28

WW DHW
Z DHW circulation
Cylinder capacity l 130 160 200
a mm 200 250 300
b mm 471 616 780
c mm 721 866 1030
d mm 907 1052 1216
e mm 640 640 640
f mm 654 654 654
Dim. a: Minimum wall clearance to enable the installation/removal of
the protective magnesium anode.
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 1.3 2.2 3.5
80 °C 1.3 2.2 3.5
70 °C 1.1 1.6 2.5
Performance factor N
L
The performance factor N
L
varies according to 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
Peak output (over 10 minutes)
Relative to the performance factor N
L
and DHW heating from 10 to
45 °C
Cylinder capacity l 130 160 200
Peak output (l/10 min)
at heating water flow temperature
90 °C 159 199 246
80 °C 159 199 246
70 °C 148 173 210
Max. draw-off rate (over 10 minutes)
Based on performance factor N
L
With booster
DHW heating from 10 to 45 °C
Cylinder capacity l 130 160 200
Max. draw-off rate (l/min)
at heating water flow temperature
90 °C 16 20 24
80 °C 16 20 24
70 °C 15 17 21
Available water volume
Cylinder volume heated to 60 °C
Without booster
Cylinder capacity l 130 160 200
Draw-off rate l/min 10 10 10
Available water volume l 100 145 180
Water with t = 60 °C (constant)
DHW cylinder
(cont.)
28
VIESMANN
VITOGAS
3
5822 428 GB