Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 109

Boiler for woodchips and pellets
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Code 2
(cont.)
Coding in the delivered condition
Vacuum module delay
2D:10
Delay of the vacuum module
10 seconds
Changeover unit
64:4
The changeover unit has 4 probes.
Code available if changeover unit
type 0 is connected.
Changeover unit, runtime
65:90
Runtime of the changeover unit
90 minutes. Code available if
changeover unit type 0 is connec-
ted.
Changeover unit, backwashing runtime
66:0
Backwashing runtime for the
changeover unit 0 seconds. Code
available if changeover unit type 0
is connected.
Transverse screw conveyor, light barrier delay
C0:...
The light barrier delay of the trans-
verse screw conveyor delays dis-
charge by 5 seconds.
Proximity switch, pellet hopper
E8:0
Pellet hopper proximity switch only
for detecting the maximum fill level
in the pellet hopper.
Heating
Coding
Coding in the delivered condition
DHW priority
A2:0
No priority control during cylinder
heating
Note
Individually adjustable for each
heating circuit.
Select heating circuit with Á .
Frost protection temperature
A3:2
Outside temperature below 1 °C:
Frost protection function "On"
Outside temperature above 3 °C:
Frost protection function "Off"
Possible change
2D:1
Setting range in seconds
to
2D:250
64:1
Setting range: 1 probe to 8 probes
to
64:8
65:5
Setting range in minutes
to
65:120
66:0
Setting range in minutes
to
66:30
C0:5
Setting range in minutes
to
C0:100
E8:1
Pellet flow detection (replacement
pellet flow sensor).
Possible change
A2:1
During cylinder heating, the mixer
closes. If the heating circuit is wired
to the boiler control unit, the heating
circuit pump remains switched on. If
an extension kit is used for the heat-
ing circuit, the heating circuit pump
is switched off.
A2:2
During cylinder heating, the mixer is
closed and the heating circuit pump
is switched off.
A2:3
During cylinder heating, the set val-
ue for the flow temperature is adjus-
ted to the set value for reduced
heating mode.
A3:-9
Frost protection function "On"/"Off"
to
See the following table:
A3:15
Codes
109

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