External Blocking/Mixer Close - Viessmann Vitocal 300-G Installation And Service Instructions Manual

System definition control settings
External demand/mixer OPEN
No. Function of the following system components
2 M2: Heating circuit with mixer
M3: Heating circuit with mixer
No heat demand to the heat pump
3 M2/M3: Heating circuits with mixer
No heat demand to the heat pump
4 M2/M3: Heating circuits with mixer
Heat demand to the heat pump
5 M2: Heating circuit with mixer
M3: Heating circuit with mixer - control mode
Heat demand to the heat pump
6 M2: Heating circuit with mixer
M3: Heating circuit with mixer
Heat demand to the heat pump
7 M2/M3: Heating circuits with mixer
Heat demand to the heat pump

External Blocking/mixer CLOSE

Parameter
7015
Details how the "Ext. Blocking" or
"Mixer CLOSE" functions should
affect the heat pump.
!
Please note
The system frost protection
may no longer be ensured.
Access
"Device settings"
"Programming"
144
(cont.)
control mode
moves into the OPEN position
move into the OPEN position
control mode
moves into the OPEN position
control mode
moves into the OPEN position
move into the OPEN position
"System definition"
y to"Ext.blocking/Miclose"
l or m
Standard setting
Setting range
Note
The parameter "Ext. Blocking" takes
higher priority than "External
demand".
See also parameter 730C: "Set flow
temperature external demand",
page 161.
4
0 to 8