CTC Union EcoZenith i555 Pro 1x230V, Installation And Maintenance Manual

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CTC EcoZenith i555 Pro
15. Electrical installation
This chapter describes how the various electrical components are connected
in line with the designations reproduced in schematic diagrams and wiring
diagrams.
Installation and connection in the EcoZenith must be undertaken by an
authorised electrician. All wiring must be installed according to applicable
regulations. The EcoZenith is factory set to (3 + 6) + (3 + 6) kW power output.
An additional 9 kW electric heater is available as an accessory. Electrical
connections are made behind the product's front panel. Loosen the screws on
the front (4 screws), open and move the front aside (disconnect any network
cables on the front display for easier access). The terminal blocks and the earth,
neutral and phase terminals are located on the relay card. Insert the connection
cables through the cable ducts on the product’s top cover, which exit at the
same height as the electric panel’s top edge.
It is important to keep heavy current and extra low voltage cables apart
in order to avoid interference problems; this applies outside the product
also.
• Heavy current power cables must be routed in the cable duct in the
insulation on the top of the unit and on the right side of the unit in the
space between the side insulation and the top insulation (marked with
broken lines).
• Extra low voltage cables are to be routed on the left side of the unit in the
space between the side insulation and the top insulation (marked by a
dotted line).
For higher currents and thicker cables, replace the blanking plug (see drawing)
with an appropriate cable gland with strain relief.
Extra-low voltage
10V/sensor High voltage
230/400V
Low voltage
Blanking plug
!
It is important to
keep high voltage
and extra-low
voltage cables
apart in order to
avoid interference
problems; this
applies outside the
product also.