CTC Union EcoZenith i550 Pro, Installation And Maintenance Manual

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63 CTC EcoZenith i550 Pro
For the property owner
Re-cooling to temp. °C 70 (50 to 80)
This option may be activated when the Re-cooling
function has been activated. The function means that
the system endeavours reduce the temperature in the
hot water tank and buffer tank to the set setpoint.
Anti-freeze No (No/Yes)
As there is a risk of blocks of ice forming in the solar
panels, circulation may be started to reduce the risk of
frost damage.
Anti-freeze temp °C -25 (-30...-7)
Specifies the temperature at which frost protection
should be activated. The menu is displayed when the
Anti-freeze function has been activated.
9.5.2.8 Wood Boiler
Start at flue gas temp °C 100 (70...250)
This menu is used to define the flue gas temperature
(sensor B8) at which the system is required to enter
wood operation status and the heat pump(s) is required
to be stopped.
Wood operation is activated when the flue gas
temperature exceeds the set value in this menu and
the temperature in the EcoZenith’s lower tank is equal
to or above its reference value (setpoint). When wood
operation is active, the heat pump or additional heat are
not used for heating the EcoZenith. Wood operation is
deactivated when the flue gas temperature drops below
the set value in this menu.
Wood boiler
Start at fl ue gas temp °C 100