Viessmann Haus&Luft HL - OP - 15 User Manual page 20

- remove dust from the sensor access panel (12) with a gentle brush (fig. 8)
- remove the access panel (fig. 9)
- clean the sensor with a dump ear stick and wipe with a dry stick (fig.10)
- re-close the access panel
Fig. 8
6. The UV lamps should be replaced every 3 years. Replace the UV lamps as follows:
- remove all filters
- Gently open each UV lamp power terminal with a flat screwdriver and gently remove the
lamp connector from the terminal (fig. 11)
- install new UV lamps opening the terminals again. Ensure the metal handles firmly grip
each lamp
- re-install the filters
REMEMBER! DO NOT stare directly into the UV-C lamp when on!
7. The air ionizer does not require any maintenance.
8. Store the appliance in its packaging in a dry room when not in use. Clean the appliance as
instructed above before prolonged storage.
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Fig. 9
Fig. 11
Fig. 10