Viessmann SM1 Installation And Service Instructions Manual page 11

Coding addresses overview
Coding in the delivered condition
Set solar cylinder temperature
11:50 Set solar DHW temperature 50 °C.
Target temperature control active
■
(code "10:1"):
Temperature at which the solar
heated water is to be stratified
into the DHW cylinder.
If code "20:9" (heating of two
■
DHW cylinders) is set:
when one DHW cylinder reaches
its set DHW temperature, the
second DHW cylinder is heated.
Minimum collector temperature
12:10 Minimum collector temperature
10 °C
(minimum start temperature for the
solar circuit pump).
Extended control functions
20:0 No extended control function ena-
bled.
Note
Extended control functions can be
used only in relation to the selec-
ted system example and the sys-
tem components listed there.
For further details regarding the
adjustable functions, see
page 21.
Start temperature differential for central heating backup
22:8 Start temperature differential for
central heating backup: 8 K (code
"20:4" must be set).
Stop temperature differential for central heating backup
23:4 Stop temperature differential for
central heating backup: 4 K (code
"20:4" must be set).
Start temperature for thermostat function
24:40 Start temperature for thermostat
function 40 °C (code "20:5" or
"20:6" must be set).
Stop temperature for thermostat function
25:50 Stop temperature for thermostat
function 50 °C (code "20:5" or
"20:6" must be set).
(cont.)
Possible change
11:10
to
11:90
12:0
12:1
to
12:90
20:1
20:2
20:3
20:4
20:5
20:6
20:7
20:8
20:9
22:2
to
22:30
23:1
to
23:29
24:0
to
24:100
25:0
to
25:100
Commissioning
The set solar DHW temperature is
adjustable from 10 to 90 °C.
Minimum collector temperature func-
tion inactive.
Minimum collector temperature ad-
justable from 1 to 90 °C.
Additional function for DHW heating
Differential temperature control 2
Differential temperature control 2
and auxiliary function
Differential temperature control 2 for
central heating backup
Thermostat function
Thermostat function and auxiliary
function
Solar heating via external heat ex-
changer without additional tempera-
ture sensor
Solar heating via external heat ex-
changer with additional temperature
sensor
Solar heating of 2 DHW cylinders
Start temperature differential adjust-
able from 2 to 30 K.
Stop temperature differential adjust-
able from 1 to 29 K.
Start temperature for thermostat
function adjustable from 0 to 100 K.
Stop temperature for thermostat
function adjustable from 0 to 100 K.
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