Worcester 350 Combi

Fig. 15. Suction tube connections between the fan and the air flow pressure switch.
Marked t ve
Marked -ve
Air flow pr e ssure swi tc h
Su ction tube to connection P2
at the front of the switch
L\1\'===:.F=====I
Fan fi xing screw
n
Fig. 1 6. Blanking off the flue openings not used.
Fig. 17. Air duct clamp assembly.
,-..---;.==::::==L Inn er sealing ring
Sealing gasket
Fig. 18. Air and flue duct clamps-side connection shown.
Sensing pipe
15
20mm
1;1
r
I
I
I
I
I
I
L_
Flue duct clamp
Flue duct
ENLARGEMENT
CROSS - SECT ION
~B ·'
Silicon
rubber
Inner ri ng Ou te r ri ng
Air duct
Sil icon seal