Weil-McLain GV90+ Installation And Start-Up Manual page 75

GV90+ Series 2
GAs·FIRED WATER BOILER -
Boiler Manual
Service & maintenance
(ccntinuedJ
Figure 83 Recuperator flueway dra in holes
G4006
thoroughly flu. s bed with fresh water, allow r.he water to drain
out through the recuptrnt:Or condensate opening..
6. Dump any remaining water f'rom the recuptrnt:Or.
7. Look through the flue adapter aud locate the flueway drain
holes as shown in Figure 83.
8.
Use
a brush or other
mean.s
to remove blod:age f'rom these
holes.
9. Rinse rhe r«uperator thoroughly.
IAWARIINO I
If
the
recuperator shows signs of significant cor-
rosion o r deterioration, contacr Weii-Mctain for
TtCOrnmendarions on im·estigating
the
cause and
replacing the recupe-rator if necessary.
Re-install the recuperator
I. lnspecr the rtcuperaror gaskets to make sure all art in good
condition. Replace if there
is an)' sign of damage.
2. Atrach the recupe-rator at the boiler connection.
3.
Secure
with
the four nurs.
4. Re-connect
rh~
water connecrions ro the upper and lower
recuperator flanges.
5. Re-Insert the l.n-llne drain fitting Into the recuperator > 'ellt
adaprer. Tighten the clamp ro
secure
in
p l.ac~.
6.
R~-co nnect
the plug-in connector on
the thermal
fuse (Fig-
ure 102, page 97, irem 27).
Part number 550-1+2-783/1012
Re-install th e condensat e t rap
tiw ARteG)
Make sure the condensate trap is re-installed
securely.
' F ailure to comply with the above could result in
~·t"Te
persona] injury, death or substantial property
damage.
Re-connect t he vent
pipe
I. If the
vent
pipe was
lifted
out. re-insert the venr pipe into.
2. If the
vent
pipe was cut, install a coupling in the vtnr line to
aJJow re-oonnection.
3.
If a section was removed (stainless
·•~nt
pipe), replace the
S«t.ion.
4. Re-co nnect the vent pipe to the ln-liue drain fitting and
tighre:n rJt..e damp.
When rtplacing the vtnr pipe, follow all instruc-
t ions in
this
manual to ensure rhe •tent is prope:rl)•
.compl ~td.
Failure ro properly the
v~nt
pipe could
Tt'Sult in
kVere
personal injury, death or substantial
propcty damag<.
75