Viessmann VITODENS 300 Service Instructions Manual page 41
Wall mounted gas fired condensing boiler. natural gas and lpg version. 4.2 to 13.0 kw
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Also See for VITODENS 300:
- Service instructions manual (132 pages) ,
- Datasheet (41 pages) ,
- Installation instructions manual (20 pages)
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Code 1
(cont.)
Coding in the delivered condition
User no.
77:1
LON user number
Summer econ. A1
A5:5
*
1
With heating circuit
pump logic function
Summer econ. M2
A5:5
*
1
With heating circuit
pump logic function
Flow min. temp. A1
C5:20
Electronic minimum
flow temperature limit
20 °C
Min. flow temp. M2
C5:20
Electronic minimum
flow temperature limit
20 °C
Flow max. temp. A1
C6:75
*
1
Electronic maximum
flow temperature limit
set to 75 °C
Max. flow. temp. M2
C6:75
*
1
Electronic maximum
flow temperature limit
set to 75 °C
Slope A1
d3:14
*
1
Heating curve slope =
1.4
*1
Only for weather-compensated control units.
Possible change
77:2
LON user number, adjus-
to
table from 1 to 99:
77:99
1-4 = boiler
5 = cascade
10 - ... = Vitotronic 050
99 = Vitocom
Note
Allocate each number
only once.
A5:0
Without heating circuit
pump logic function
A5:0
Without heating circuit
pump logic function
C5:1
Minimum limit adjustable
to
from 1 to 127 °C
C5:127
C5:1
Minimum limit adjustable
to
from 1 to 127 °C
C5:127
C6:1
Maximum limit adjustable
to
from 1 to 127 °C
C6:127
C6:1
Maximum limit adjustable
to
from 1 to 127 °C
C6:127
d3:02
Heating curve slope ad-
to
justable from 0.2 to 3.5
d3:35
(see page 33)
Coding
41
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