I-31
B-070343_EN • B
P
roduct
I
nstallatIon
9.
Release four screws and remove air inlet pro-
tection cover (
4
). Retain screws for reinstal-
lation.
10. Install appropriate air inlet connection (N 280
FS & N 420 FS : 150 mm, N 570 FS & N 840
FS : 250 mm) according to chimney connec-
tion type (open or closed), using the four re-
tained screws.
Two air inlet types are provided with the
boiler for installation : one for a C-type
connection, and one for a B-type.
See
Fig. 15 below
.
i
X4
X4
Fig. 15. Air Inlet Installation
4
C-type connection
B-type connection
Follow-on Task(s):
1.
Perform gas conversion, as required. See
“Gas Conversion” on page I-40.
2.
Close front panels, as required. See
“Re-
moving and Installing the Access Panels”
on page I-32.
3.
Install the condensate trap at the back. See
“Removing, Cleaning and Installing the
Condensate Trap” on page I-58.
