6.5
Maintenance of further system components
▶ Unscrew turn-lock fastener on the flap housing. ➊
▶ Pull the pump connector and backflow preventer off. ➋
▶ Immerse backflow preventer and pump connector in bath of water. Wipe
off with a damp cloth afterwards. ➌
▶ Vacuum out system tank with wet vacuum cleaner and then clean system
tank (interior) with damp cloth.
▶ Assemble the components again in reverse order.
▶ Re-establish power supply. Check that the system starts up and that all
components function correctly.
✓ System is operational again.
016-059
Installation and operating manual
2
3
Fig. [23]
1
57