Excessive Room Temperature; Excessive Flow Temperature; Mixer Runtime - Viessmann VITOCAL 300 Installation And Service Instructions Manual

Heating circuit control settings
Integral room temperature controller
Standard setting

Excessive room temperature

Prerequisite: Room temperature sen-
sor installed and enabled (see
page 105).
If the temperature captured by the
room temperature sensor exceeds the
set room temperature by the value
selected here, all room heating com-
ponents (heat pump, electric heater
and possibly an external heat source)
are switched OFF.

Excessive flow temperature

This function selects the temperature
rise of the secondary circuit over that
of the mixer circuit, subject to a mixer
circuit being connected.
Access
& "System settings"
&
"Program"

Mixer runtime

Setting of the time required by the ser-
vomotor of the external heating circuit
mixer for a complete changeover
from one operating state into another
(90 degree movement).
Runtimes that are too short can lead
to the heating circuit mixer "Cycling".
108
100 Setting range
Access
& "System settings"
& "Program"
& "Heating circuit"
& "Heating circuit 1/2"
& "Room T excess "
(1/!)
Standard setting
Setting range
& "Heating circuit"
& "Heating circuit 2"
& "T flow excess "
(1/!)
Standard setting
Setting range
Access
& "System settings"
& "Program"
& "Heating circuit"
& "Heating circuit 2"
& "Mixer runtime" (0/=)
Standard setting
(cont.)
5 to 1000
5 K
0 to 20 K
0 K
-10 to 40 K
0:10 min