Technical data

118
CTC EcoZenith i550 Pro
For the installer
16.8 Settings made by the installation
electrician
The following settings shall be made by the installation electrician after
installation:
• Select main fuse size
• Select effect limitation
• Check room sensor connection
• Check that the sensors connected indicate reasonable values.
• Carry out the following checks:
Check room sensor connection
1. Scroll down and select the option LED room sensor in menu “Installer/
Service/Function test/Heating circuit”
.
2. Select “On”. Check that the room sensor LED lights up. If not, check
the cables and connection.
3. Select “Off”. If the LED goes off, the check is complete.
Check connected sensors
If any sensor is incorrectly connected, a message will appear on the display,
e.g. “Alarm sensor out”. If several sensors are incorrectly connected, the
different alarms are displayed on different rows. If no alarm is displayed, the
sensors are connected correctly. Note the the alarm function of the room
sensor (LED) cannot be detected on the display. It must be checked on the
room sensor. The current sensor connection has no alarm, but the current
value can be read in the “Operation data” menu.