Ferroli Sigma 30 FF 41-267-07 Installation And Servicing Instruction page 13

5
c
d
c - d
Common
For top outlet
For rear outlet
Fig. 23
Remove fan mounting plate by undoing
the three fixing screws "c".
Boiler is fitted as standard with Ø36 (Sigma 30-40) or Ø41 (Sigma 50-60) restrictor. Identify on 2.07 the correct restrictor
for your flue system. If it is necessary to change it. follow instructions at step 7-10, if not, go to step 11.
7
Fig. 25
Remove the two screws "a" from pipe
connection "b".
10
Fig. 28
Fix the restrictor with the two screws
"a" inside the pipe connection "b".
Sigma
6
d
c
For rear
outlet
Fig. 24
Rotate the fan through 90° so that the fan nozzle points upward. Secure the fan
to the plate in the new position using screws in position "d".
8
Fig. 26
Remove restrictor "c".
11
b
b
Fig. 29
9
Fig. 27
Insert the correct restrictor.
(See section 2.07).
a
Refit wiring connections to fan and air
pressure switch tubes ensuring correct
orientation. I.E. red tube to air pressure
switch connection with red dot (+) and
clear tube to air pressure switch con-
nection with no paint marking (-).
Fit the fan into the boiler rotating the
front upwards to engage with the pin
"a".
Secure with the screws "b".
For top
outlet
13