Viessmann VITOCAL 200-G, Инструкция по установке и обслуживанию

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Precondition: The natural cooling function is enabled.
The cooling limit temperature defines the outside temperature, exceeding of
which triggers the natural cooling function.
The cooling limit temperature is the result of the selected set room temperature
and the temperature entered under "
cooling limit > T room ".
Example:
The selected set room temperature is 20 °C; the temperature entered under
"
cooling limit > T room " is 4.0 K. The natural cooling function starts if the aver-
age outside temperature exceeds 24 °C (cooling limit temperature).
If the outside temperature drops to less than 23 °C, the natural cooling function
is switched off because of the specified hysteresis of 1 K.
A
Set room temperature
B
Cooling limit temperature
C
Selected value " Cooling limit > T
room "
D
Average outside temperature
E
Cooling function ON
F
Cooling function OFF
Access
& " Device settings "
& " Programming "
& " Heating circuit "
& " Heating circuit 1/2 "
& "Cooling limit > T room"
(
5
/
%
)
Standard setting 4.0 K
Setting range 2.0 to 20.0 K
Cooling curve level/slope
Precondition: The natural cooling function is enabled.
A specific outside temperature can be assigned to a certain cooling circuit flow
temperature using the "
Cooling curve level " and "slope " parameters.
The cooling curve level parameter moves the cooling curve along the flow tem-
perature axis, and the cooling curve slope parameter assigns a lower flow tem-
perature to the same outside temperature if there is a greater slope.
Cooling limit > T room (cooling limit temperature)
165
Heating circuit control settings
55
92
968
GB
Service