Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 57

Vitotronic 200 and 300-K Installation and Service
"Solar" Group
(continued)
Coding in the factory set condition
0E:1 Calculation of solar yield with Viessmann heat
transfer medium.
0F:70 Flow rate of solar circuit at max. pump speed
7 L/min.
10:0 Target temperature control switched off
(see coding address "11").
11:50 Set solar DHW temperature 122° F (50° C).
- Target temperature control
switched on (code "10:1"):
Temperature at which the solar heated
water in the DHW tank is to be stratified.
- Extended control functions set to
heat two DHW tanks (code "20:8"):
The second DHW tank is heated when one
DHW tank reaches its set DHW temperature.
12:10 Minimum collector temperature 10° C.
The solar circuit pump is not started until the
selected minimum collector temperature
is exceeded.
20:0 No extended control function enabled.
22:8 Start temperature differential for central
heating backup: 8 K.
Switching output sS is switched on when
the temperature at sensor / exceeds the
temperature at sensor aÖ by the selected
value.
23:4 Stop temperature differential for central
heating backup: 4 K.
Switching output sS is switched off when
the temperature at sensor / falls below
the stop point. The stop point is the sum of
the temperature at sensor aÖ and the value
selected for the stop temperature differential.
Possible change
0E:2 Calculation of solar yield with water as heat
transfer medium (do not select, as operation
is only possible with Viessmann heat transfer
medium).
0E:0 Calculation of solar yield switched off.
0F:1 Flow rate adjustable from 0.1 to 25.5 L/min.
to 1 step 0.1 L/min.
0F:255
10:1 Target temperature control switched on.
11:10 The set DHW temperature for solar can
to be adjusted from 10 to 90° C.
11:90
12:0 Minimum collector temperature function
switched off.
12:1 The minimum collector temperature
to is adjustable from 1 to 90° C.
12:90
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.
22:2 Start temperature differential for central
to heating backup is adjustable from 2 to 30 K.
22:30
23:2 Stop temperature differential for central
to heating backup is adjustable from 1 to 29 K.
23:30
Code 2
57