Gruppo Ferroli ECOTRONIC tech Instrucciones De Uso E Instalación página 97

EN ECOTRONIC tech
Elimination of excess heat (thermostat function) Only for system 2B
(Only with Parameter P20=1 and with Parameter P14 < P13)
During normal operation, if the temperature of Upper Hot Water Tank Sensor S1 is higher than the Thermostat
activation temperature parameter value (Installer parameter, default equal to 40°C) then the ECOTRONIC tech
regulator activates the output Relay connected to terminals 13-14-15 (FREE CONTACT on the 11-pin connector);
whereas if the temperature of Upper Hot Water Tank Sensor S1 is lower than the Thermostat deactivation
temperature parameter value (Installer parameter, default equal to 45°C) then the ECOTRONIC tech regulator
deactivates the output Relay connected to terminals 13-14-15 (FREE CONTACT on the 11-pin connector).
The contact is voltage-free and with exchange contact: NC 14-15, NO 13-14.
To signal the Supplementary Heating mode, the Contact symbol will be lit.
Cod. 3540V010 - 07/2010 (Rev. 00) 97