Technical data

20
CTC EcoZenith i550 Pro
General Information
2.8 External Hot Water Tank
An external water heater can be connected to the EcoZenith. This results
in a greater stored hot water volume, which contributes to higher hot water
capacity.
The incoming cold water first passes through the EcoZenith where it is
heated before it flows into the hot water tank and out to the property’s taps.
This means that, when the temperature from the EcoZenith is no longer
sufficient, the entire volume of the hot water tank is still there to be used.
When the temperature in the upper tank of the EcoZenith is factory set 5°C
warmer than in the external hot water tank, the charge pump starts. The
heat from the upper tank charges the hot water tank until the increase in
temperature in the latter does not exceed one degree per three minutes.
When hot water is stored below 60°C, heating of the hot water tank at
regular intervals is necessary to eliminate the risk of Legionella. This function
is built into the EcoZenith. First the upper tank is heated as far as possible
using the heat pump. For the water heater to reach 65°C during 1 hour, the
immersion heater is allowed to engage to raise the temperature over the final
degrees. The factory setting for this is every fourteen days.
See also Upper tank Menu in the Detail Description Menus chapter
(Installer/Settings/Upper tank)
2.9 Pool
A pool is connected to the EcoZenith’s lower tank. Between the EcoZenith and
the pool, a heat exchanger is installed to separate the liquids.
A sensor in the pool starts and stops the pool’s charge pumps in order
to maintain the set temperature in the pool (factory set at 22°C), and the
temperature is allowed to fall by one degree before the charge pump
starts again. It is also possible to set the pool priority to high or low, which
determines whether or not additional heat can be used for heating the pool.
See also Pool Menu in the Detail Description Menus chapter
(Installer/Settings/Pool)