Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 78

en-US
Heating/cooling switchover
Heating switchover temperature
Cooling switchover temperature
Fig. 39: 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 operates 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 remains in-
active. It conveys the fluid occasionally only for measuring the temperature.
To prevent inactivity, set the switchover temperatures for heating and cooling to the same
temperature. Additionally select the switchover method using a binary input.
For an external switchover between "Heating/cooling", select "Binary input" in the "Heating/cooling
switchover" menu.
78
Min: 25.0 °C – Max: 80.0 °C
Min: 0.0 °C – Max: 25.0 °C
Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10
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.