Solar" Group - Viessmann VITOTRONIC300 Installation And Service Instructions Manual

Code 1

"Solar" Group

Only in conjunction with solar control module, type SM1.
Coding
Coding in the factory set condition
Speed control solar circuit pump
02:0 Solar circuit pump (multi stage) without
speed control by solar control module SM1.
DHW tank maximum temperature
08:60 The solar circuit pump stops when the
actual DHW temperature reaches the
maximum DHW tank temperature 140°F
(60°C).
Stagnation time reduction
0A:5 To protect system components and heat
transfer medium:
the speed of the solar circuit pump is
reduced if the actual DHW temperature
is 5 K below the maximum DHW tank
temperature.
Flow rate solar circuit
0F:70 The solar circuit flow rate at maximum
pump speed is 1.9 USG/min. (7 L/min.)
Extended solar control functions
20:0 No extended control functions enabled.
92
Vitotronic 300, GW2B Installation and Service
Possible change
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.
08:10 The maximum DHW tank temperature is
to adjustable from 50 to 194°F (10 to 90°C).
08:90
0A:0 Stagnation time reduction is disabled.
0A:1 Value for stagnation time reduction
to is adjustable from 1 to 40 K.
0A:40
0F:1 Flow rate adjustable from
to 0.03 to 6.7 USG/min. (0.1 to 25.5 L/min);
0F:255 1 step 0.03 USG/min. (0.1 L/min.)
20:1 Additional function for DHW heating.
20:2 Differential temperature control 2.
20:3 Differential temperature control 2 and
auxiliary function.
20:4 Differential temperature control 2 for central
heating backup.
20:5 Thermostat function.
20:6 Thermostat function and auxiliary function.
20:7 Solar heating via external heat exchanger
without additional temperature sensor.
20:8 Solar heating via external heat exchanger
with additional temperature sensor.
20:9 Solar heating of two DHW tanks.