TFC Group Trealux 610 - Manual (Page 3)

3
GB
2. Putting into operation/use
2.3 Diagnosis
a) Key check
If one of the keys in the stairwell is pressed, appears in the display.
If this symbol is continuously displayed, one or more keys may be blocked or even
defective.
b) Lamp ON period/operating hours (displayed value x 100)
Begin: Press keys + and – simultane
Example:
0
5
= 50 hours
1 = 100 hours
1
5
= 150 hours etc.
End: Press + or – once current switching state
The number of operating hours is an indication of whether and
when it seems appropriate to change the lamps.
c) Lighting ON
If one of the keys in the stairwell or the hand switch on the unit has been pressed,
the symbol in the display must be visible. If the lighting in the stairwell is still OFF,
there may be an installation fault or all lights are faulty.
– +