C1Aa Min. Temperature, Geothermal Heat Exchanger - Viessmann VITOTRONIC 200 Service Instructions Manual

C1AA Min. temperature, geothermal heat exchanger

Vitovent
200-C 200-W 300-C
X
—
When outside temperatures are low, the outdoor air
can be preheated by a geothermal heat exchanger (on
site), e.g. to protect the heat exchanger against frost.
Below the set temperature, the 3-way diverter damper
opens up the path through the geothermal heat
exchanger. Above the set temperature the outdoor air
flows directly into the ventilation unit.
C1AB Max. temperature, geothermal heat exchanger
Vitovent
200-C 200-W 300-C
X
—
When outside temperatures are warm, the outdoor air
can be routed through a geothermal heat exchanger
(on site), e.g. for central cooling. Above the set tem-
perature, the 3-way diverter damper opens up the path
through the geothermal heat exchanger. Below the set
temperature the outdoor air flows directly into the ven-
tilation unit uncooled.
C1B0 Function, input 1
Vitovent
200-C 200-W 300-C
X
—
Configuration of input X15.1/X15.2 on the controller
PCB of the ventilation unit.
C1B1 Min. voltage, input 1
Vitovent
200-C 200-W 300-C
X
—
Switching voltage for the CO
CO /humidity sensor (accessories).
2
300-F 300-W
X X
—
300-F 300-W
X X
—
!
300-F 300-W
X X
—
!
300-F 300-W
X X
—
signal with a connected
2
Parameter group Ventilation
!
≙
Setting 1 0.1 °C
!
≙
Setting 1 0.1 °C
Value Meaning
"0" Floating N/O contact
"1" Analogue signal input 0
the CO signal in conjunction with a CO
2
humidity sensor (accessories)
"2" to Never adjust
"5"
If the voltage at input X15.1/X15.2 on the controller
PCB of the ventilation unit exceeds the set value, the
air flow rate is decreased. Below this limit the most
recent applicable air flow rate is reactivated.
Recommended setting: "40" (
≙
Setting 1 0.1 V
10 V for connecting
–
/
2
≙
4 V)
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