9.6 Sensors
Contact temperature sensor
Part no. 7426463
As system flow temperature sensor in heating systems with heating
water buffer cylinder and/or external heat generator
42
66
60
Secured with a tie.
Specification
Lead length
5.8 m, fully wired
IP rating
IP 32D to EN 60529; ensure through
design/installation
Sensor type
Viessmann NTC 10 kΩ at 25 °C
Permissible ambient temperature
– Operation
0 to +120 °C
– Storage and transport
–20 to +70 °C
Immersion temperature sensor
Part no. 7438702
■ To capture the temperature in a sensor well
■ For installation in a DHW cylinder or heating water buffer cylinder
Specification
Lead length
5.8 m, fully wired
IP rating
IP 32 to EN 60529; ensure through de-
sign/installation
Sensor type
Viessmann NTC 10 kΩ at 25 °C
Permissible ambient temperature
– Operation
0 to +90 °C
– Storage and transport
–20 to +70 °C
9.7 Miscellaneous
Contactor relay
Part no. 7814681
■ Contactor in small enclosure
■ With 4 N/C and 4 N/O contacts
■ With terminal strips for earth conductors
95
145
180
Specification
Coil voltage
230 V/50 Hz
Rated current (I
th
)
AC1 16 A
AC3 9 A
KM BUS distributor
Part no. 7415028
For the connection of 2 to 9 devices to the control unit KM-BUS
Control unit accessories
(cont.)
140
VIESMANN
VITOCAL
9
5831388
