85
CHECK THE ELECTRICAL
CONNECTIONS
• Are all of the sensors and actuators correctly connected and pro-
perly plugged in to the I/O circuit board?
• Has the mains power supply cable been correctly connected?
– L1 on terminal 100
– L2 on terminal 101
– L3 on terminal 102
– Neutral conductor on terminal N
– Earthing conductor on terminal PE
• Are the data cables properly attached between central unit, trans-
port module and control unit?
• Have the unused inputs been bridged?
• Is the assembly plate earthed?
5.2 Procedure
SWITCHING ON THE HEATING SYSTEM
1. Switch on the circuit breaker for the mains electricity supply, or
otherwise ensure the unit is provided with power.
✓ The heating system is now under voltage.
2. Turn the heating system main switch on.
✓ The control is activated.
✓ After a start-up phase, the display will first show a switch-on mes-
sage and then show the standard display of i-01.
✓ The heating system is now switched on.
SETTING THE DISPLAY LANGUAGE, BOILER TYPE AND SUPPLY VOLTAGE
1. Simultaneously press the Plus and Enter buttons.
✓ The display changes to the service level.
✓ The cursor is positioned on the parameter group 1-General.
2. Press the Enter button.
✓ The display switches to the parameter group 1-General.
Danger!
Dangerous electrical current or voltage
Isolate the mains cable to the heating system.
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