3092
3
GB
FILTER MAINTENANCE
Said operation must be performed by skilled personnel.
Check the filter at least once a year!
The filter can be changed without removing the train. If the filter is replaced frequently, it is best to replace
the fastening screws, too.
The maintenance procedure is as follows:
y
cut off the gas flow by closing the gate;
y
unscrew the screws and remove the filter cover;
y
remove the filter and replace it with a new one;
y
refit the cover, screw it on and tighten screws without overtightening;
y
test operation and check for leaks.
WIRING SCHEME,
(see fig. 3)
Before starting any work, the system’s power
supply must be cut off.
Fig. 3
D4060
Blue
Br
own
Blue
Brown
Black “P”
socket
Black
socket
ATTENTION