Nibe SMO 20 - Page 36

start active cooling
Setting range: 10 – 300 DM
Factory setting: 30 DM
time betw. switch heat/cool
Setting range: 0 – 48 h
Factory setting: 2
You can use SMO 20 to cool the house during hot periods of the year.
Caution
Certain setting options only appear if their function is installed and ac-
tivated in SMO 20.
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. SMO 20 then attempts to get
as close to the set temperature 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. SMO 20 then attempts to get
as close to the set temperature as possible.
heat/cool sen.
If a particular room will determine how the whole installation will work,
a room sensor (BT74) is used. If room sensor (BT74) is connected to SMO 20,
room sensor (BT74) determines when it is time to switch between cooling
and heating operation for the whole installation.
Caution
When the heating/cooling sensors (BT74) have been connected and
activated in menu 5.4, no other sensor can be selected in menu 1.9.5.
set pt value cool/heat sensor
Here you can set at which indoor temperature SMO 20 is to shift between
heating respectively cooling operation.
NIBE™ SMO 20Chapter 3 | SMO 20 – at your service36