Solar" Group - Viessmann VITOTRONIC 300 Installation And Service Instructions Manual

Vitotronic 300, GW5B & MW1B 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).
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.
0B:0 Frost protection function for solar circuit
switched off.
0C:1 Delta T monitoring switched on.
No flow rate captured in the solar circuit, or
flow rate too low.
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 1 to
to 10%/K.
04:10
05:2 Minimum speed of the solar circuit pump is
to adjustable from 2 to 100%.
05:100
06:1 Maximum speed of the solar circuit pump is
to 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 is
to adjustable from 50 to 194° F (10 to 90° C).
08:90
09:20 The temperature is adjustable from 68 to
to 392° F (20 to 200° C).
09:200
0A:0 Stagnation time reduction is disabled.
0A:1 Value for stagnation time reduction is
to adjustable from 1 to 40 K.
0A:40
0B:1 Frost protection function for solar circuit
switched on (not required with Viessmann
heat transfer medium).
0C:0 Delta T monitoring switched off.
Code 2, Vitotronic 300-K
95