Solar" Group - Viessmann VITOTRONIC300 Installation And Service Instructions Manual

Vitotronic 300, GW2B Installation and Service

"Solar" Group

Only in conjunction with solar control module, type SM1.
Coding
Coding in the factory set condition
00:8 The solar circuit pump starts when the
collector temperature exceeds the actual DHW
temperature by 8 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.
02:0 Solar circuit pump (multi stage) without speed
control by solar control module SM1.
03:10 The temperature differential between the
collector temperature and actual DHW
temperature is regulated to 10 K.
04:4 Controller amplification of the speed control
4%/K.
05:10 Minimum speed of the solar circuit pump
10% of the maximum speed.
06:75 Maximum speed of the solar circuit pump
75% of the maximum possible speed.
07:0 Interval function of the solar circuit pump
switched off.
08:60 The solar circuit pump stops when the actual
DHW temperature reaches the maximum DHW
tank temperature 140°F (60°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).
Possible change
00:2 The differential between the actual DHW
to temperature and the start point for the solar
00:30 circuit pump is adjustable from 2 to 30 K.
01:1 The differential between the actual DHW
to temperature and the stop point for the solar
01:29 circuit pump is adjustable from 1 to 29 K.
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.
03:5 The differential temperature control between
to the collector temperature and actual DHW
03:20 temperature is adjustable from 5 to 20 K.
04:1 Controller amplification adjustable from
to 1 to 10%/K.
04:10
05:2 Minimum speed of the solar circuit pump
to is adjustable from 2 to 100%.
05:100
06:1 Maximum speed of the solar circuit pump
to is adjustable from 1 to 100%.
06:100
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.
08:10 The maximum DHW tank temperature
to is adjustable from 50 to 194°F (10 to 90°C).
08:90
09:20 The temperature is adjustable from
to 68 to 392°F (20 to 200°C).
09:200
Code 2
111