Weil-McLain GV90+ Installation And Start-Up Manual page 46

GV90+ Series 2
oAs·FIRED WATER BOILER -
Boiler ManuaJ
DIRECT VENT -
Vertical with 3" concentric
(cononuedJ
Mount concentric termination
I. Mount the termination •s shown in Figurt 57, page 46.
2. Supporr
the conc~ntric
vent/air termination at the roof pe-netratio n
as shown in Figure 57.
The supports/b racing used must support the terminatio n
~mbly
to pre\rent \'frtical
slippage
or sideways movement.
The damps used on the outside of the termination pipe
mus~
n or cur into the pipe or contain sharp edges thar could cause
a crack to
fomL
The
\'tnl
and air piping mu.sr
bt
secure-ly
support~,
md
must
not rest its weight on the boiler fittings. DO
NOT drill or
SCTtW
in ro t ither the vent pipe or air pipe.
Failure
to
proprrty support rhe • ; ent and air piping couJd
result in vent piping
dimage.
resulting in possible
sewr~
personal injur)', death o r substantial property damage.
· w hen inserting the partially-assembled
termination
kir through the roof penetration. wrap plastic or other
protection O\'fr
the
end of the exposed assembly ro p rt -
\'fnt debris from entering the pipes.
If
the air passages
become b locked, the boiler will n or operate. Once the
rain cap has
been
cm1mted
to
the assembly. there is no
way ro co rrecr
the
prob lem. The a.ssembt)• would have
ro
be
replaced if ir
were
cut to
be
removed and deaned.
Altering lhe aSSt-mbly in any way could result in severe.
persoruil injury or death due to toxic flue product emls-
sion.s.
When usJng AL294C srainless vent pipe. use the vent
pipe manufacrurtr's
PVC adapter
when connecting
t()
rhe concentric vent attachment.
IAwAR-.ol
Do
not connect any o rher appliance
to
rhe • tent pipe or-
multiple "boilerS
ro
a common \'fnt p ipe.
3. After rhe assembl)• has b«-n posiriontd in the roof opening and
aU
supporrs have been attached, install a b ird screm (purchased
separately if n ot included wirh the kit) and rain cap as follows:
46
a.
Place the bird screen on the e nd of tht inner p ipe
as
in
Figure
58,
page 47.
b. Cement the rai[ll cap in place.
Figure 66 Vertical termination - 3" PVC concentric
- single
or
multiple
boii!I(S
Figure
01
3 ' PVC concentric 18fJTlinalion supports
Alt plpong
(bj .......
•l
Aut
numb« SSG-I 47-1'1Uf'l()l'2