Temperature Limit For Reduced Temperature Mode - Viessmann VITOCAL 300 Installation And Service Instructions Manual

Heating limit < T room (heating limit temperature)
The selected set room temperature is
20 °C, the value entered under "Heat.
limit < T room" is 4.0 K.
Central heating commences if the
average outside temperature drops
below 16 °C (heating limit tempera-
ture).
A Set room temperature
B Outside temperature
C Selected value "Heat. limit < T
room"
D Heating OFF
E Heating ON

Temperature limit for reduced temperature mode

The "reduced" temperature mode
(see operating instructions, "setting
switching times") will no longer be
used, if the average outside tempera-
ture falls below the temperature limit
selected here. The device heats up to
the temperature selected for "stan-
dard" mode.
Operation will continue in accordance
with the selected switching times, if
the average outside temperature
stays above this temperature limit.
System definition control settings
(cont.)
If the outside temperature exceeds
18 °C, central heating is adjusted
because of the specified hysteresis of
2 K.
Access
& "System settings"
& "Program"
& "System definition"
& "Heat. limit < T room"
(1/!)
Standard setting
Setting range
Note
The standard setting of –30 °C means
that this function is disabled.
Access
& "System settings"
& "Program"
& "System definition"
& "Red. mode T thresh'd"
(1/!)
4 K
0 to 20 K
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