Viessmann Vitodens 200 Technical Manual page 27

Heating curve slope
90
80
70
60
50
40
30
20
20 15 10 5 0 -5 -10 -15 -20
Outside temperature in °C
The upper boiler water temperature is
limited by the temperature limiter and the
temperature set on the electronic
maximum temperature limiter.
Heating systems with low loss header
When using a hydraulic separation (low
loss header), connect a temperature
sensor for use in the low loss header.
Boiler water temperature sensor
The boiler water temperature sensor is
integrated into the weather-compensated
control unit and is an integral part of the
boiler.
Permissible ambient
temperature
H in operation: 20 ºC to +130 ºC
H during storage
and transport: 20 ºC to +170 ºC
VITODENS
Vitotronic 200 for weather-compensated mode
Outside temperature sensor
1.8
1.6
.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Installation location:
H North or north-western wall of the
building
H 2 to 2.5 m above ground, for
multi-storey buildings approx. in the
upper half of the second floor.
Connection:
H 2 wire cable, cable length max. 35 m
when using a cross-section of 1.5 mm
(copper).
H Do not run the cable immediately next
to 230/400 V cables.
Protection: IP 43 to EN 60 529
Permissible ambient
temperature during
storage and
transport: 40 ºC to +70 ºC
Cylinder temperature sensor
Standard delivery for
H Connection set for wall mounted DHW
cylinders (80 litres) (order separately)
H Connection set for DHW cylinders
installed below the boiler (120 or
150 litres) (order separately)
H Connection set for DHW cylinders
installed adjacent to the boiler (160, 200
or 300 litres) (order separately)
H Order the cylinder temperature sensor
for the Vitodens 300 from 49 kW
separately (see page 40).
Cable length approx. 3.75 m, wired ready
to plug in
Protection: IP 32
Permissible ambient
temperature
H in operation: 20 ºC to +90 ºC
H during storage
H and transport: 20 ºC to +70 ºC
1.2 Specification
Cylinder temperature sensor
(Vitodens 333 and 343) and primary
temperature sensor
(only for the Vitodens 333)
The sensors are connected to the control
unit and built into the boiler.
Protection: IP 32
Permissible ambient
temperature
H for operation: 20 ºC to +90 ºC
H during storage
H and transport: 20 ºC to +70 ºC
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