Technical data
14
CTC EcoZenith i250
General Information
4. CTC EcoZenith i250 design
Fresh Water Connections
Here you connect the
property’s fresh water
connections. The cold water
is fed down and heated in
the lower part of the coiling.
Finned Coil for Hot Water
The EcoZenith i250 is
equipped with a well-
dimensioned finned coil made
of copper. Since hot water is
not stored, there is no risk of
legionella bacteria.
Bivalent Mixing Valve
The automated mixing valve
ensures that an even heat is
continuously supplied to the
radiator system.
Upper part
In the upper part of the coil
the hot water is then heated
to the desired temperature.
Upper immersion heater
Built-in upper immersion
heater. When connected to
a heat pump, the immersion
heater acts as additional heat.
Lower part
In the lower part of the coil
the hot water is pre-heated by
the water heated by the heat
pump. The major section of
the coil is located in this part.
Heat medium pump
The adjustable-speed charge
pump transports the cold
water from the boiler to the
heat pump where the energy
from the air or bedrock/ground
is drawn up and taken back to
the boiler.
The boiler is supplied with a
circulation pump for a heat
pump of up to 12kW!
Insulation
The heat pump’s tank is
insulated with die-cast
polyurethane foam for minimal
heat loss.
The picture below shows the basic construction of CTC EcoZenith i250.
If a heat pump is connected, the energy in the air or bedrock/ground is drawn
up by the cooling system. The compressor then increases the temperature
to a usable level. Afterwards it releases the energy for the heating system
and hot water. The built-in immersion heaters help when additional heat is
needed or when a heat pump is not connected.
Lower immersion heater
Built-in lower immersion
heater. Not used in normal
operation when the heat
pump is connected.
Draining/expansion vessel
connection
Two connections in the
lower part of the product
where water from the boiler
and radiator system can be
drained and an expansion
vessel connected.
Diverting valve
The heated water from the
heat pump heats up the
upper or lower part of the
tank alternately.
Expansion connection
15 mm.
Heat pump pipes
The CTC EcoZenith i250 L
is equipped with connection
pipes for top connection