Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service page 197

Installation and operating instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D
Setting the control functions
In order to adjust the automatic switchover between heating and cooling, select "Auto-
matic" and enter the switchover temperature each for heating and cooling.
Heating/cooling switchover
Heating
Cooling
Automatic
Binary input
Fig. 50: Heating/cooling switchover_Automatic
Heating/cooling switchover
Heating switchover temperature
Min: 25.0 °C – Max: 80.0 °C
Cooling switchover temperature
Min: 0.0 °C – Max: 25.0 °C
Fig. 51: Heating/cooling switchover_Switchover temperatures
If the switchover temperatures are exceeded or not reached, the pump automatically
switches between heating and cooling.
NOTICE
If the switchover temperature for heating in the fluid is exceeded, the pump oper-
ates in heating mode.
If the fluid temperature drops below the cooling switchover temperature, the pump
operates in cooling mode.
Once the set switchover temperatures have been reached, the pump initially
switches to "Standby" for 15 minutes and then runs in the other mode.
In the temperature range between the two switchover temperatures, the pump re-
mains inactive. It conveys the fluid occasionally only for measuring the temperature.
Proceed as follows to prevent inactivity:
• set the switchover temperatures for heating and cooling to the same temperature.
• select the switchover method using a binary input.
For an external switchover between "Heating/cooling", select "Binary input" in the
"Heating/cooling switchover" menu.
en
The pump automatically
switches via
temperature limit values
between heating and
cooling.
If the heating
switchover temperature
in the fluid is exceeded,
the pump operates
in heating mode.
If there is a fall below
the cooling switchover
temperature in the fluid,
the pump operates
in cooling
mode.
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