Cylinder capacity
l
390
DHW circulation (male thread)
R
1
Immersion heater (female thread)
Rp
1½
Information regarding continuous output
When engineering systems with the specified or calculated continuous
output, select a matching circulation pump. The stated continuous out-
put is only achieved when the rated boiler heating output ≥ continuous
output.
107
455
349 399
591
849
969
1089
1458
422
1014
1522
1624
WW1
Z
HF
SPR1
WW2
SPR2
KW/E
ELH1
HR
ELH2/R
881
923
650
859
SPR2
E
Drain
ELH1 Connector for immersion heater
ELH2 Flanged aperture for immersion heater
HR
Heating water return
HV
Heating water flow
KW
Cold water
R
Inspection and cleaning aperture with flange cover
SPR1 Cylinder temperature sensor of the cylinder temperature con-
troller
SPR2 Temperature sensor of the solar heat exchanger set
WW1 DHW
WW2 Hot water from the solar heat exchanger set
Z
DHW circulation
Performance factor N
L
According to DIN 4708, without return temperature limit.
Cylinder storage temperature T
cyl
= cold water inlet temperature
+ 50 K
+5 K/–0 K
Performance factor N
L
at heating water flow
temperature
90 °C
16.5
80 °C
15.5
70 °C
12.0
Information regarding performance factor N
L
The performance factor N
L
depends on the cylinder storage tempera-
ture 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
.
DHW heating from 10 to 45 °C without return temperature limit.
Peak output (l/10 min) at a heating water flow
temperature of
90 °C
540
80 °C
521
70 °C
455
Max. draw-off rate (over 10 minutes)
Relative to the performance factor N
L
.
With reheating.
DHW heating from 10 to 45 °C.
Max. draw-off rate (l/min) at heating water flow
temperature
90 °C
54
80 °C
52
70 °C
46
DHW cylinders
(cont.)
72
VIESMANN
VITOSOL
11
5822 440 GB