Immersion temperature sensor
Part no. 7426 247
For installation in the DHW cylinder, heating water buffer cylinder,
combi cylinder.
■ For DHW circulation diversion in systems with 2 DHW cylinders.
■ for return changeover between the boiler and the heating water buf-
fer cylinder
■ for heating additional consumers.
■ For a heat statement (return temperature is captured).
On-site extension of the connecting lead:
■ 2-core lead, length max. 60 m with a cross-section of 1.5 mm
2
(cop-
per)
■ Never route this lead immediately next to 230/400 V cables
Specification
Lead length
3.8 m
IP rating
IP 32 to EN 60529; ensure
through design/installation
Sensor type
Viessmann NTC 10 kΩ, at
25 °C
Permissible ambient temperature
– during operation
0 to +90°C
– during storage and transport
−20 to +70 °C
Collector temperature sensor
Part no. 7831 913
Immersion temperature sensor for installation in the solar collector.
■ For systems with two collector arrays.
■ For a heat statement (flow temperature is captured).
On-site extension of the connecting lead:
■ 2-core lead, length max. 60 m with a cross-section of 1.5 mm
2
(cop-
per).
■ Never route this lead immediately next to 230/400 V cables.
Specification
Lead length
2.5 m
IP rating
IP 32 to EN 60529; ensure
through design/installation
Sensor type
Viessmann NTC 20 kΩ, at
25 °C
Permissible ambient temperature
– during operation
−20 to +200 °C
– during storage and transport
−20 to +70 °C
Stainless steel sensor well
Part no. 7819 693
SW24
200
R½
For temperature controllers and temperature sensors.
Part of the standard delivery of the Viessmann DHW cylinders.
Heat meter
Components:
■ 2 sensor wells
■ Flow meter with connection fitting to capture the flow rate of
water:glycol mixtures (Viessmann heat transfer medium "Tyfo-
cor LS" with 45 % glycol volume ratio):
Heat meter
06
Part no. 7418 206
15
Part no. 7418 207
25
Part no. 7418 208
35
Part no. 7418 209
60
Part no. 7418 210
a
90
108
260
116
159
168
Solar control units
(cont.)
VITOSOL
VIESMANN
53
5822 440 GB
10