Technical data

5 CTC EcoZenith i250
General Information
General Information
Congratulations on your new product
You have just bought a CTC EcoZenith i250, which
we hope you will be very pleased with. In the following
pages you can read about how to operate and maintain
your boiler.
Keep this manual containing the installation and
maintenance instructions. If it is properly maintained,
you will be able to enjoy the use of your CTC EcoZenith
i250 for many years. This manual will provide all the
information you will need.
The complete system tank
The CTC EcoZenith i250 is a complete system tank
which meets your home’s heating and hot water
requirements. It has a built-in immersion heater giving a
total of 15 kW and is equipped with a motorised mixing
valve which ensures correct and even temperatures are
supplied to your heating system. The CTC EcoZenith
i250 has a built-in circulation pump for connection to a
heat pump.
The CTC EcoZenith i250 is fully ready for connection to
the following heat pumps:
• CTC EcoAir 406 • CTC EcoPart 406
• CTC EcoAir 408 • CTC EcoPart 408
• CTC EcoAir 410 • CTC EcoPart 410
• CTC EcoAir 520M* • CTC EcoPart 412*
**Consider the flow requirements, particularly with the
CTC EcoAir 520M and CTC EcoPart 412 models. See
also the “Exact Primary Flow” function and use a larger
circulation pump if required.
All controls for the heat pump and charge pump are
built into the CTC EcoZenith i250. With this added
feature you achieve a very eco-friendly and energy-
saving heating system.
For more information, please see the separate section in
this manual.
The CTC EcoZenith i250 has a control
system that:
• Monitors all system tank, heat pump and heating
system functions
• Permits individual settings
• Displays desired values, such as temperatures,
operation times, energy consumption and fault
signals
• Facilitates the setting of values and troubleshooting
in a simple and well-structured way
The built-in copper coil provides copious amounts of
hot water. The CTC EcoZenith i250 also has a so-
called summer-time basement heating function and a
floor heating block, which maximises the temperature
supplied to the floor circuits. Using the integrated
night reduction function, you can set and change the
temperature in the house during the day, from one day
to the next.
Easily accessible electrical components, along with
effective troubleshooting functions in the control
program, make the CTC EcoZenith i250 easy to service.
It comes with a room sensor as standard, which is
equipped with an LED which flashes in the event of a
fault.
If you want to supplement your CTC EcoZenith i250
with other heating, you can do this easily thanks to two
unique connections. We have decided to call this option
Energyflex. With Energyflex you can, for example:
• Charge your heating system with solar energy
• Allow a water-jacketed stove to contribute heat
• Connect a pool exchanger to heat up a swimming
pool