time betw. switch heat/cool (Displayed if cooling in 2-pipe
system is activated.)
Setting range: 0 – 48 h
Factory setting: 2
op mode auto EQ1-GP12
Here you set whether you want the cooling pump (GP12) to run in operating
mode auto.
cooling pump speed
Setting range: 1 – 100%
Factory setting: 70%
You can use VVM 225 to cool the house during hot periods of the year.
Caution
Certain setting options only appear if their function is installed and
activated in VVM 225.
delta at +20 °C
Set the desired temperature on the temperature difference between supply and
return lines to the climate system during cooling operation when the outdoor
temperature is +20 °C. VVM 225 then attempts to get as close to the set tem-
perature as possible.
delta at +40 °C
Set the desired temperature on the temperature difference between supply and
return lines to the climate system during cooling operation when the outdoor
temperature is +40 °C. VVM 225 then attempts to get as close to the set tem-
perature as possible.
use room sensor
Here you can set whether room temperature sensors are to be used in cooling
mode.
cool/heat sensor
An extra temperature sensor can be connected to VVM 225 in order to determine
when it is time to switch between heating and cooling operation.
When several heating/cooling sensors are installed, you can select which one
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Chapter 3 | VVM 225 – at your service
NIBE VVM 225
