CTC Union EcoZenith i350 L 1x230V, Installation And Maintenance Manual

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44 CTC EcoZenith i360
i Do not attach
the sensor cable
permanently until you
have tested where
the best location is.
6.16 Sensor connection
The sensor is connected on top of terminal X2, behind the magnetic strip.
See the wiring diagram and connection table for correct connection.
Sensor terminal block
6.16.1 Connection of outdoor sensor (B15)
The sensor should be set up on the house’s northwest or north side, so that
it is not exposed to morning and evening sun. If there is a risk of the sensor
being affected by the sun’s rays, it must be protected by a screen.
Place the sensor at around 2/3 of the height of the facade near a corner, but
not under a roof projection or other form of wind protection. Do not place it
either above ventilation ducts, doors or windows where the sensor may be
affected by factors other than the actual outdoor temperature.
6.16.2 Connection of room sensors (B11 and B12)
The room sensor is fitted at a central point in the house, in the most open
position possible, ideally in a hall between several rooms. This is the best
position for the sensor to record an average temperature for the house.
Feed a three-core cable (minimum 0.5 mm2) between the product and the
room sensor. Then attach the room sensor securely in a position roughly two
thirds of the way up the wall. Connect the cable to the room sensor and the
product.
When connecting a wireless room sensor (accessory), refer to the “Wireless
room sensor” manual.
Check room sensor connection
• Go to the menu: “Installer/Service/Function test/Heating system”.
• Go down and select the option LED room sensor and press OK.
• Select "On" using the "+" button and press "OK".
Check that the room sensor LED lights up. If not, check the cables and
connection.
• Select "Off" using the "-" button and press "OK". If the OK LED goes
off, the check is complete.
• Return to the start menu by pressing the "Home" button.