8.4
Opti-Air system
1.
Remove the ventilation air inlet grate.
2.
Get the battery holder. Put a
screwdriver in the small notch of the
lid and pull out the battery.
3.
Replace the 9 V battery and close
the battery holder.
4.
Put the battery holder and ventilation
air inlet grate back.
Post requirements
• Change the 9 V back-up battery every
year.
Maintenance
26
Cuatro-7 75-60
