Weil-McLain 4 Series Manual page 34

insTallaTion
Baffle Assembly and Installation, continued
1
Installing the 2nd Flue-Way Baffles, cont.
Before installation, open either the left-hand or right-
hand flue-way door to access the 2nd and 3rd flue-
ways on that side
2
Boilers 1994 through 2594
1 Identify the long C-channel piece with 16 smaller
holes This C-channel slides inside the C-channel
pieces with 22 smaller holes
2 Identify which set of four holes will mate up
3
between the two 22-hole and the 16-hole
C-channels to create the length needed for the
boiler size Refer to Table 9, page 32
a Make sure the large 1" holes are facing
towards the front of the boiler for the first 22-
hole C-channel and the 16-hole C-channel
4
b The large 1" hole on the second 22-hole
C-channel must be facing the back of the
boiler
3 Mark all the mating holes on the C-channels
with a paint dot next to them for identification
throughout the assembly
4 Insert the first 22-hole C-channel on the side
5
casting fins located at the third row from the
bottom Make sure the large 1" hole at the end
faces the front of the boiler
5 Once the marked holes are just outside of the
boiler, bring the 16-hole panel with the large 1"
hole towards the front of the boiler up to the other
6
C-channel
6 Use four clevis pins from the baffle hardware bag
to connect the two C-channels together through
the marked holes Insert the cotter pins
7 Continue to slide the two C-channels together
into the boiler until the marked holes are just
outside of the boiler
7
8 Bring the second 22-hole C-channel up to the
boiler, with the 1" hole facing the back of the
boiler
9 Use four clevis pins from the baffle hardware
bag to connect the second 22-hole and 16-hole
C-channels together through the marked holes
8
Insert the cotter pins
10 Slide all three C-channels together into the
boiler until the last C-channel has 1" of length
protruding from the flue-way. See Figure 26.
34
sTeam series
94
Figure 26 C-channels installed – boilers 1994-2594
Front view
C-channel assembly
230141 230141
11 Use a tape measure to confirm that the correct
length of baffle was assembled for your boiler
size Refer to Table 9, page 32
NOTICE
Verify the baffles are the correct length for the boiler.
An incorrect baffle length can adversely affect the
performance of the boiler.
12 Insert the 10" x 7" blocker piece from the 3rd flue-
way side on top of the protruding C-channel with
the bite holes facing down Align the holes such
that the blocker piece edge lands exactly halfway
between the 2nd and 3rd flue-way entrances.
13 Secure the blocker piece to the protruding
C-channel with the two sheet metal screws from
the baffle hardware bag. See Figure 24, page
33
a Insert the screws from underneath the
C-channel piece through the holes
b Screw into the bite holes of the blocker piece
with a 5/16" nut driver or hex head wrench to
create the final assembly as shown.
boiler manual
4
Top view
(partial)
1"
Front of boiler
550-100-157/0523