Temperature Differential Cooling - Viessmann Vitocal 300-G Installation And Service Instructions Manual

System definition control settings
Temperature differential heating
A Set room temperature
B Outside temperature
C Selected value "Temp. diff. heat-
ing"
D Heating OFF
E Heating ON

Temperature differential cooling

Parameter
7004
Precondition: Cooling function is
active.
The cooling limit temperature defines
the outside temperature, exceeding of
which triggers the cooling function.
The cooling limit temperature is the
result of the selected set room tem-
perature and the temperature entered
under "Temp. diff. cooling".
Example:
138
(cont.)
Access
"Device settings"
"Programming"
"System definition"
y to "Temp. diff. heating"
5 or %
Standard setting
Setting range
The selected set room temperature is
20 °C; the temperature entered under
"Temp. diff. cooling" is 4,0 K.
The cooling function starts if the
adjusted outside temperature
exceeds 24 °C (cooling limit tempera-
ture).
If the outside temperature drops
below 23 °C, the cooling function
stops (because of the specified hys-
teresis of 1 K).
4 K
0 to 20 K