Viessmann VITODENS 222-F Technical Data Manual page 15

Vitodens 222-F, B2TA 19 and 35 Technical Data
Design and Functions
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
Specification
Lead length fully wired:
Permissable ambient temp.
- during operation:
- when storing
or transporting:
(continued)
at 77º F (25º C)
32 to 266º F (0 to 130º C)
- 4 to+158º F (-20 to+70º C)
12 ft. (3.75 m),
32 to 194° F (0 to 90° C)
- 4 to+158° F (-20 to+70° C)
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 temp.
- at operation:
- when storing
or transporting:
Accessories
32 to 194º F (0 to 90º C)
- 4 to+158º F (-20 to+70º C)
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