Technical data

59
CTC EcoZenith i250
Installation
12.5 External systems (solar
heating, pool heating)
The product is adapted for the connection of external
systems for energy supply or heat extraction. In order
to avoid damage to the product, it is important that
any external system is hydraulically separated through
a plate heat exchanger. The connection is made to the
front of the unit behind the front panel. Two capped
water connections each with 3/4” internal threads
suitable for right-angle connectors (3/4” – 22 mm) are
situated to the right. Insulated 22 mm copper piping is
used to form an outlet through suitably made openings
in the top cover.
When an energy supply system (e.g. solar heating) is
connected, the water for the solar heating system must
be drawn from the lower connection and returned via
the upper connection.
NOTE: Solar panels are connected with an intermediate
heat exchanger; a solar coil is not built into the CTC
EcoZenith i250.
When a heat extraction system is used (e.g. pool
heating), the water must be drawn from the upper
connection and returned via the lower connection.
!
Connecting external systems can seriously affect the EcoZenith’s operation and
performance and can therefore produce undesirable effects if the system is not
installed correctly.
If you are unsure how to make the connection, contact CTC for suggestions on
how to install the system.
Upper
connection
Lower
connection
Grommet