Ferroli ECOTRONIC tech Instrucciones De Uso E Instalación página 142

ECOTRONIC tech
5. If the difference between the temperature of solar collector sensor S3 and solar collector return sensor S4 is greater
than the Solar circulating pump modulation temperature differential - Minimum parameter value (Installer parameter,
default 10°C) plus triple the Solar circulating pump modulation temperature differential parameter value (Installer
parameter, default 5°C), the solar circulating pump works at speed 5 (Max. power, 100%).
To signal this mode, the symbol E will be lit up.
NB: If, on solar circulating pump activation, the ECOTRONIC tech controller does not have to set speed 5 (Max.
power, 100%), in the first second of operation the solar circulating pump will in any case work at speed 5 (Max.
power, 100%).
If the Solar circulating pump operation parameter (Installer parameter, default 1=Modulating) is set to 0 there
will be no modulation: the solar circulating pump will work on/off according to the normal solar circulating pump
activation/deactivation algorithms. To signal this mode, the symbol E will be lit up.
Solar Circulating Pump Deactivation
If the hot water tank sensor S2 temperature is less than the Tank maximum temperature parameter value (Installer
parameter, default 60°C) and the difference (positive) between the solar collector sensor S3 temperature and the solar
collector return sensor S4 temperature is less than or equal to the Deactivation temperature differential parameter
value (Installer parameter, default 4°C), the ECOTRONIC tech controller deactivates the solar circulating pump.
If the hot water tank sensor S2 temperature is greater than or equal to the Tank maximum temperature parameter
value (Installer parameter, default 60°C), the ECOTRONIC tech controller deactivates the solar circulating pump.
To signal this mode, the solar circulating pump symbol will go off.
Additional heating (thermostat function) For system 3A only
(Only with Parameter P20=1 and with Parameter P14 > P13)
During normal operation, if the upper hot water tank sensor S1 temperature is less than the Thermostat activation
temperature parameter value (Installer parameter, default 40°C) the ECOTRONIC tech controller activates the
output relay connected to terminals 13-14-15 (FREE CONTACT on the 11-pole connector); whereas if the upper
hot water tank sensor S1 temperature is greater than the Thermostat deactivation temperature parameter value
(Installer parameter, default 45°C), the ECOTRONIC tech controller deactivates the output relay connected to
terminals 13-14-15 (FREE CONTACT on the 11-pole connector).
The contact is voltage-free with switch-over contact: NC 14-15, NO 13-14.
To signal the additional heating mode, the contact symbol will be lit up.
excess heat dissipation (thermostat function) For system 3B only
(Only with Parameter P20=1 and with Parameter P14 < P13)
During normal operation, if the upper hot water tank sensor S1 temperature is greater than the Thermostat activation
temperature parameter value (Installer parameter, default 40°C) the ECOTRONIC tech controller activates the
output relay connected to terminals 13-14-15 (FREE CONTACT on the 11-pole connector); whereas if the upper
hot water tank sensor S1 temperature is less than the Thermostat deactivation temperature parameter value
(Installer parameter, default 45°C), the ECOTRONIC tech controller deactivates the output relay connected to
terminals 13-14-15 (FREE CONTACT on the 11-pole connector).
The contact is voltage-free with switch-over contact: NC 14-15, NO 13-14.
To signal the additional heating mode, the contact symbol will be lit up.
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cod. 3540V011 - 03/2017 (Rev. 00)
EN