External Extension - Viessmann VITOCAL 300-A Installation And Service Instructions Manual

External extension

Parameter
7010
Details whether an external
extension H1 is connected.
The external extension H1 can be
used for the following functions:
Swimming pool water heating
Heat pump cascade
Externally changing operating
modes
External demand
External mixer OPEN
External operating mode changeover heating circuits
Parameter
7011
This setting determines which system
components the external operating
mode changeover affects.
Access
"Device settings"
"Programming"
"System definition"
No. Affects the following system components
0 DHW heating
1 A1: Heating circuit without mixer
2 A1: Heating circuit without mixer, DHW heating
3 M2: Heating circuit with mixer
4 M2: Heating circuit with mixer, DHW heating
5 A1: Heating circuit without mixer
M2: Heating circuit with mixer
6 A1: Heating circuit without mixer
M2: Heating circuit with mixer, DHW heating
7 M2: Heating circuit with mixer
M3: Heating circuit with mixer
System definition control settings
External blocking
External mixer CLOSE
Access
"Device settings"
"Programming"
"System definition"
y to"Ext. extension"
"YES" or "NO"
Standard setting
Setting range
y to"Op. mode change HC"
l or m
Standard setting
Setting range
Note
The parameter "Ext. blocking" takes
higher priority than "Ext. demand"
(see page 138 : Parameter 7015).
No
Yes/No
11
0 to 11
135