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For the property owner
CTC EcoZenith
I
550
Additional boiler (pellets, oil, gas, electricity)
See also
External
Boiler Menu
in the Detail Description Menus.
(Installer/Settings/
Ext boiler)
section
The CTC EcoZenith
I
550 can control an external additional boiler (pellets, oil, gas,
electricity) which is connected into the upper tank. Use the menu to select whether the
external additional boiler should have high or low priority. If high priority is selected,
the external additional boiler is activated before the immersion heater(s); when low
priority is selected, the immersion heater(s) is activated first.
After a certain delay, which is factory set at 120 minutes, the unit with low priority can
also start and help the heat source with high priority.
The external boiler has a factory-set start temperature of 60°C and a stop temperature
of 65°C. If needed, a minimum operating time (the time it has to be operating before
it is turned off) for the external boiler can also be set.
The CTC EcoZenith
I
550 handles the start and stop of the charge pump to the
external boiler.
