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ACCESSORIES
2.1: FAN THERMOSTAT ACTION
In this case, the valve is not used (hot or cold water flows freely into the bank) and thermoregulation occurs by tur-
ning the fan on or off. This regulation is associated with both the heat and cool modes. To prevent the ambient probe
from making reading errors, the PERIODIC VENTILATION function is activated in both the cool and heat modes.
Graph showing the fan heating/cooling thermostat action
Graph of valve heating/cooling thermostat action
2.2: VALVE THERMOSTAT ACTION
In this case, fan management differs depending on whether the appliance operates in heat or cool mode, as descri-
bed below:
• Cool mode: the thermostat function opens/closes the valve as required, while the fan is permanently on even
when the thermostat action has been accomplished.
• Heat mode: the thermostat function opens/closes the valve while the fan is managed with delay times linked to
the HOT START and PERIODIC VENTILATION functions (described on page 35).
Temperature trend
Temperature trend
Heat mode operation
Cool mode operation
Heat mode operation
Cool mode operation
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