Viessmann VITOGAS - Page 20

750 and 1000 litre capacity
HR
a
b
n
o
c
d
e
f
g
h
k
l
m
BÖ
WW
Z
SPR
KW/E
VA
HV/SPR
b
BÖ Inspection and cleaning aperture
E Drain
HR Heating water return
HV Heating water flow
KW Cold water
SPR Cylinder temperature sensor of the cylinder temperature control
or the control thermostat
VA Protective magnesium anode
WW DHW
Z DHW circulation
Capacity l 750 1000
Length (7) a mm 960 1060
Width b mm 1046 1144
Height c mm 2100 2160
d mm 1923 2025
e mm 1327 1373
f mm 901 952
g mm 321 332
h mm 104 104
k mm 505 555
l mm 7 180 7 180
m mm 457 468
n mm 947 1047
excl. thermal insulation o mm 7 750 7 850
Performance factor N
L
To DIN 4708.
Cylinder storage temperature T
cyl
= cold water inlet temperature + 50 K
+5 K/-0 K
Capacity l 160 200 300 500 750 1000
Performance factor N
L
at a heating water flow tem-
perature of
90 °C 2.5 4.0 9.7 21.0 40.0 45.0
80 °C 2.4 3.7 9.3 19.0 34.0 43.0
70 °C 2.2 3.5 8.7 16.5 26.5 40.0
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.)
20
VIESMANN
VITOGAS
3
5822 428 GB