45
For the property owner
CTC EcoZenith
I
550
Radiator System Menu
(Installer/Settings/Radiator System 1, 2, 3)
In the “Radiator system” menu you make settings for defined radiator circuits.
This is in order to meet the house’s need for heat, the so-called “house
heating curve”. It is important that this default setting be right for just
your house. Incorrectly set values can result in insufficient heat or too much
energy being used for heating. Very important is the setting of values for
“Slope” and “Adjustment”.
Max primary flow °C
Highest permissible heat going out to the radiators. For floor heating this is an
“electronic” barrier to protect the floor coils. Factory value 55°C (setting 30-80°C).
Min primary flow °C
If during the summer you want the cellar or floor coils in the bathroom, for instance,
to have a certain basic heat, the lowest permissible temperature can be set here.
Other parts of the house should then be closed off with thermostat valves or
stop cocks.
Factory value Off (setting Off, 15-65°C).
Heat Off, outside °C
Limit for outside temperature when the house does not need more heat. The radiator
pump stops and the mixing valve is kept closed, provided that there is no need
for heat on the heating systems 2 or 3. The radiator pump is exercised every day
to avoid seizure. The system starts again automatically when heat is needed.
Factory value 16°C (setting 10-30°C).
Heat Off, time
When the outside temperature falls to the limit at which heat is needed again,
“Heat Off, outside °C”, has to remain this low or lower for this many minutes
before heat to the house is allowed again. Factory value 120 minutes (setting
30-240 minutes).
Curve Slope °C
The value set is the outgoing temperature to the radiators at -15 °C outside
temperature. A lower value is selected for a radiator system with large radiator
surfaces (so-called low temperature system). For a
floor heating system
very low
temperatures are needed. The value should therefore be set low. If you have
a
high temperature system
, the value must be increased to get sufficient inside
temperature. High temperature systems are not optimized for heat pump operation,
which is why the savings will be lower if a heat pump is connected.
Factory value 50°C (setting 25-85°C).
Curve Adjustment °C
While the inclination indicates by how much the temperature should increase up
to the radiators when the outside temperature is falling, the adjustment means that
the temperature level can be raised or reduced at a certain outside temperature.
Factory value 0°C (setting -20 to 20°C).
Radiator system 1 (2, 3)
Max primary flow °C
55
Min primary flow °C
Off
Heat off, outside °C
16
Heat off, time
120
Inclination °C
50
Adjustment °C
0
Room reduced °C
-2
Primflow reduc.°C
-3
Drying period
Off
