For the property owner
16
CTC EcoZenith
I
550
Lower Tank
See also
Lower tank Menu
in the Description Menus
(Installer/Settings/
Lower tank)
section and the Hot Water section.
In the lower tank the heat pump operates to provide heat to the heating system.
The lower tank never goes below set lowest temperature.
The heat pump heats to the temperature needed for the heating system. This temperature
varies depending on the outside temperature and which set inclination and adjustment
have been selected. If a room sensor is installed, this affects which temperature is needed
on the system. During spring and fall, when it is not so cold outside, a lower temperature
to the heating system is needed, but during winter a higher temperature is needed to
maintain the desired inside temperature.
The savings of a heat pump is directly connected to the COP value. COP means output
power/input power. Thus, COP = 3 means that 1 kW power is input to the compressor
and 3 kW heating effect is returned.
The lower the temperature the heat pump needs to create, the higher the COP value
obtained from the heat pump, because it becomes a more favorable operation for the
compressor.
Therefore, the heat pump heats only to the temperature in the lower tank which the
heating system requires. This saves compressor life and maximizes the operating economy.
The immersion heater, which is factory installed in the lower tank, is blocked as long as
the heat pump is operating. Thus, it starts only if the heat pump is blocked for any reason.
