Technical data

45
CTC EcoZenith i250
General Information
!
Don’t forget that the
radiators may also
need bleeding.
Vent valve
If you do not achieve the set room temperature, check:
• that the radiator system is correctly adjusted and is functioning
normally. that radiator thermostats are open and the radiators are
equally warm all over. Touch the entire radiator surface. Bleed the
radiators. The CTC EcoZenith i250's economical operation requires that
the radiator system functions well, if you are to make good savings.
• that EcoZenith is operating and no error messages are displayed.
• that there is sufficient electrical power available. Increase if necessary.
Also check that the electric power output is not limited due to
excessively high electricity loads in the property (load monitor).
• that the product is not set to the “Max. allowed primary flow
temperature” mode with a too low set value.
• that “Primary flow temperature at –15°C outdoor temperature” is set
sufficiently high. Increase if necessary. More can be read about this in
the chapter on The house heating curve. However, always check the
other points first.
• that the temperature set back is not maladjusted. See Settings/Radiator
system.
• that the mixing valve is not in the manual position.
If the heat is not even, check:
• that the placement of the room sensors is appropriate for the house.
• that the radiator thermostats don't interfere with the room sensor.
• that no other heat sources/cold sources interfere with the room sensor.
• that the mixing valve is not in the manual position.