Technical data

78
CTC EcoZenith i550 Pro
For the property owner
Room Sensor
A room sensor, which should always be fitted (up to three room sensors can
be connected), ensures that the temperature in the room is always suitable
and stable. For the sensor to provide the correct signals to the control unit,
radiator thermostats should always be fully open in the area where the room
sensor is located. When adjusting the system, always do so with all radiator
thermostats fully open. The thermostats can be individually adjusted after a
few days in the various rooms.
You can select operation without room sensors in the menu “Installer/Define
system /Heating circuit 1, 2 and 3/Room sensor No”. This can be done if it is
difficult to find a location for the room sensor, if you have several apartments,
if the floor heating system has separate room sensors, or when using a fire
place or open stove. The alarm LED on the room sensor still functions as
normal. If you use the fire or open stove only occasionally, the firing process
can affect the room sensor and reduce the temperature supplied to the
radiators. It can then get cold in the rooms in other parts of the house. The
room sensor can temporarily be deselected during the firing process. The
EcoZenith then provides heating to the radiators using the set heating curve.
Refer to the chapter on the “House heating curve”. The radiator thermostats
are closed in the section of the house where a fire is burning.
“Summer Cellar Heat”
You will often want some background heating in basements/recreation
rooms/bathrooms in the summer months, to avoid raw, damp air. The
EcoZenith takes care of this by setting the minimum permitted primary flow
temperature to a suitable temperature (15 to 65°C). See under the menu
“Installer/Settings/heating circuit 1, 2 and 3/Min primary flow °C”. This means
that the temperature supplied to the radiators does not fall below a selected
temperature, for example 30°C. Functional radiator thermostats or shut-off
valves are required in the rest of the house in order for this to work. These
shut off the heating in the rest of the house. The function can also be used
for floor heating in the bathroom where a warm floor is required during the
summer.
Night reduction
With night reduction you have the option of automatically varying the
temperature in the house throughout the day, every day of the week. More
information can be found in the chapter “Detail description menus/Night
reduction”.