49
3.9.2 Rotary feeder
Cleaning:
– Unscrew the screw plug (WAF 22) from the rotary feeder (Fig. 152) and vacuum pellet dust out of the rotary fee-
der using a vacuum cleaner.
– Screw the screw plug back in.
Care, cleaning and maintenance
It is essential to let the boiler cool down before cleaning.
– Unhook the right side panel cladding and disconnect the mains power plug over the control panel – Fig. 149
– Remove the screw under the mains power plug on the control panel (Fig. 149) and swivel open the control panel.
3.9.1 Pressure measuring nipple for combustion chamber pressure switch
The pressure measuring nipple must always be free from fly ash so that the combustion chamber pressure can
be monitored.
Cleaning:
– Pull the pressure hose off the pressure measuring nipple (Fig. 150) and clean the induction opening in the pres-
sure measuring nipple, e.g. using a small screwdriver, drill bit or the like – Fig. 151.
– Push the pressure hose back onto the measuring nipple.
These parts are automatically checked and cleaned as part of the annual maintenance by WINDHAGER Custo-
mer Service or the customer service PARTNER.
Fig. 150
Pulling off the pressure hose
Fig. 149
Removing the power plug and screw
Fig. 151
Cleaning the induction opening with
a small screwdriver or the like
3.9
Pressure measuring nipple, rotary feeder, blower wheel,
blower box and exhaust pipe
Pressure hose
Pressure measu-
ring nipple
Mains
power plug
