General Information
68
CTC EcoZenith
I
550
Room Sensor
The room sensor, which should always be installed (up to 3 room sensors can be connected),
always ensures that the temperature in the room is correct and even. In order for it to
give the right signals to the control, the radiator thermostats should always be fully open
in the space where the room sensor is placed. Always adjust the system with all radiator
thermostats fully open. After a few days, the thermostats can be adjusted individually
in the different rooms.
In the “Installer/Define application/Def Radiator System/Room Sensor No” menu you can
select operation without room sensors. This could be done if the room sensor is difficult
to place, if you have several apartments, if the floor heating system has separate room
sensors or when burning in a stove or open fire. The alarm diode on the room sensor
works as usual, however. If burning sporadically in a stove or open fire, the burning
can make the room sensor reduce the temperature to the radiators. It can then become
cold in the rooms in other parts of the house. The room sensor can then be deselected
temporarily during the burning. The CTC EcoZenith
I
550 will then provide the radiators
with heat, according to the set heating curve: see the “House Heating Curve” section.
The radiator thermostats are throttled in the part of the house where burning takes place.
“Summer Cellar Heat”
Often a certain basic heat in the cellar/ recreation room/bathroom is desirable even in
summertime, in order to avoid raw and humid air. The CTC EcoZenith
I
550 manages
this by setting the minimum allowable primary flow temperature to a suitable temperature
(15-65°C). Refer to the “Installer/Settings/Radiator System/Min primary °C” menu.
This means that the temperature out to the radiators is not below a selected temperature,
for instance, 35°C. In order for this to work, radiator thermostats or shut off valves must
be present in the rest of the house. These then throttle the heat in the rest of the house.
The function can also be used for the floor heating in the bathroom, for warm floors
during summer.
Night reduction
With night set back you have the possibility to automatically vary the temperature in the
house 24/24, all weekdays. More information in the “Detail Description Menus/Night
set back” section.
