Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 180

Parameter group system definition
7012 Operating status for external changeover
Value Operating status (see operating instructions)
Heating/cooling
"2" "Normal"
"3" "Fixed val." (set flow
temperature is "Max-
imum flow tempera-
ture 200E")
Delivered condition
Setting range
701A Pumps and compressor, external blocking
"External blocking effect 701A"
Setting to determine which pumps are
blocked when function "External block-
ing" is enabled (see following table).
Value Secondary
pump/com-
pressor
blocked
"0"
"1"
"2"
"3"
"4"
"5"
"6"
"7"
"8"
"9"
"10"
"11"
"12"
"13"
"14"
180
DHW
"Normal"
"Temp. 2 "(heating
with "Set tempera-
ture 2 600C")
2
0 to 3
Cylinder Heating cir-
pump cuit pump
blocked M3 blocked
x
x
x
x
x
x
x
Heating water buffer
cylinder
"Normal"
"Fixed val." (heating
with "Fixed tempera-
ture 7202")
Note
Observe setting for parameter "External
blocking mixer "CLOSED" 7015" (see
page 183).
Heating cir-
cuit pump
M2 blocked
x
x
x
x
x x
x x
x
x
x
x
x x
(cont.)
Heating cir-
cuit pump
A1 blocked
x
x
x
x
x
x
x