Vitotronic 100, GC1B / Vitotronic 300-K, MW1B Installation and Service
5793 309 - 05
144
“Solar” Group
Coding 2, Vitotronic 300-K
Coding
Coding in the factory set condition Possible change
00:8 The solar circuit pump starts when the
collector temperature exceeds the actual DHW
temperature by 8 K.
00:2
to
00:30
The differential between the actual DHW
temperature and the start point for the solar
circuit pump is adjustable from 2 to 30 K.
01:4 The solar circuit pump stops when the
differential between the collector temperature
and the actual DHW temperature is less than
4 K.
01:1
to
01:29
The differential between the actual DHW
temperature and the stop point for the solar
circuit pump is adjustable from 1 to 29 K.
02:0 Solar circuit pump (multi stage) without speed
control by solar control module SM1.
02:1 Solar circuit pump (multi stage) is speed-
controlled with wave pack control.
02:2 Solar circuit pump is speed-controlled with
PWM control.
03:10 The temperature differential between the
collector temperature and actual DHW
temperature is regulated to 10 K.
03:5
to
03:20
The differential temperature control between
the collector temperature and actual DHW
temperature is adjustable from 5 to 20 K.
04:4 Controller amplification of the speed control
4%/K.
04:1
to
04:10
Controller amplification adjustable from 1 to
10%/K.
05:10 Minimum speed of the solar circuit pump
10% of the maximum speed.
05:2
to
05:100
Minimum speed of the solar circuit pump is
adjustable from 2 to 100%.
06:75 Maximum speed of the solar circuit pump
75% of the maximum possible speed.
06:1
to
06:100
Maximum speed of the solar circuit pump is
adjustable from 1 to 100%.
07:0 Interval function of the solar circuit pump
switched off.
07:1 Interval function of the solar circuit pump
switched on.
To capture the collector temperature more
accurately, the solar circuit pump starts for
short cycles.
08:60 The solar circuit pump stops when the actual
DHW temperature reaches the maximum DHW
tank temperature 140°F (60°C).
08:10
to
08:90
The maximum DHW tank temperature is
adjustable from 50 to 194°F (10 to 90°C).
09:130 The solar circuit pump stops if the collector
temperature reaches 266°F (130°C)
(maximum collector temperature to protect
the system components).
09:20
to
09:200
The temperature is adjustable from 68 to
392°F (20 to 200°C).
0A:5 To protect system components and heat
transfer medium:
The speed of the solar circuit pump is reduced
if the actual DHW tank temperature is 5 K
below the maximum DHW tank temperature.
0A:0 Stagnation time reduction is disabled.
0A:1
to
0A:40
Value for stagnation time reduction is
adjustable from 1 to 40 K.
0B:0 Frost protection function for solar circuit
switched off.
0B:1 Frost protection function for solar circuit
switched on (not required with Viessmann
heat transfer medium).
0C:1 Delta T monitoring switched on.
No flow rate captured in the solar circuit, or
flow rate too low.
0C:0 Delta T monitoring switched off.
Only in conjunction with solar control module, type SM1.
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