Optional Accessories - Viessmann Vitocrossal 300 Series Technical Data Manual

Accessories
Sensors
Boiler Temperature Sensor
The boiler temperature sensor is connected at the control
unit for weather-responsive operation and is built into the
boiler.
Specification sensor type: Viessmann NTC 10K ohms
Max. ambient temp.
- at operation:
- when storing
or transporting:
DHW Tank Temperature Sensor
- integrated DHW temperature sensor
Immersion Temperature Sensor
To capture the low loss temperature
(if the LLH is used)
Specification
Lead length fully wired:
Permissible ambient temp.
- during operation:
- when storing
or transporting:

Optional Accessories

Supply Temperature Sensor
(strap-on sensor, included with mixing valve actuator
accessory kit),
- when storing
or transporting:
to+70ºC)
Installed with a strapping band.
Cable length 19.7 ft. (6 m), ready to plug in.
Max. ambient temp.
- at operation:
- when storing
or transporting:
12
(supplied)
at 77ºF (25ºC)
32ºF to 266ºF (0ºC to 130ºC)
-4ºF to+158ºF (-20ºC to+70ºC)
(supplied)
(accessory)
12 ft. (3.75 m),
32ºF to 194°F (0ºC to 90°C)
-4ºF to+158°F (-20ºC to+70°C)
-4ºF to+158°F (-20ºC
32ºF to 212ºF (0ºC to 100ºC)
-4ºF to+149ºF (-20ºC to+70ºC)
Vitocrossal 300 CU3A 26 to 199 Technical Data
Outdoor Temperature Sensor
Sensor location:
- North or northwest wall of building
- 6.6 to 8.2 ft. (2 to 2.5 m) above ground or in case
of a multi-storey building approximately halfway up
the second floor
Electrical connection:
- 2-wire cable, max. cable length 115 ft. (35 m)
with a wire size of min. AWG 16 copper
- Cable to the outdoor sensor must not be laid near
line voltage wiring (120/240V)
Max. ambient temperature
during transport, storage
and operation:
KM BUS Expansion Module
To connect 2 to 9 devices (mixing valve actuator,
Vitotrol, input module, etc.) to the single KM BUS
connection of the boiler.
Specification
Lead length
Permissible ambient temp.
- during operation
- during storage and
transport:
(supplied)
-40ºF to 194ºF (-40ºC to 90ºC)
10 ft. (3.0 m), fully wired
32ºF to 104°F (0ºC to 40°C)
-4ºF to+149°F (-20ºC to+65°C)