18
8.3 Maintenance
•
Keep the unit surface free from dust.
• Clean the filters with a vacuum cleaner following the below illustrations (fig.8 b-c-d-e-f-g) when the FILTER signal is displayed
on LCD. Their maintenance may differ per situation depending on the internal and external environmental conditions.
• Press FILTER button (Fig.7.b - ) to reset the Filter Alarm.
•
Filters must be replaced every year.
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or
electrical work!
L
Fig. 8.e
Fig. 8.d
Fig. 8.c
Fig. 8.b
Fig. 8.g
Fig. 8.f
Summary of Contents for QR350ABP
Page 23: ...23 NOTE ...
