Weil-McLain GV90+ Installation And Start-Up Manual page 25

GV90+ Series 2
us-FultD
WAtla 110 11.1!11 -
Boiler Manual
Multiple boiler water piping
(c()nlinuedJ
Figure 32 Piping schematic - typiClli for mufti pte GV90+ boilers, using We;I·Mclain Eas.)'.f'il manifolds
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Figure 32
Flow/check~
(each
bailer~
~ Gop
• e'"'F Fi"' MntUiald
(MJpply)-~J<>utaad sit• I"'
page-2' ! 1
~
Ea")'•Fi"' MluUfold (,.IUlO)- by(>utaad
ol>•per
page-24
7 l!xpandoo tank (dlaphrogm typr)
8 S}'Jtcml air elimi.oacor
JO
Pres:ru~ ~du.::in g vaJ~
II Check valve or rbacJdlow prevent
a:.
as required by applicable
codes
12 Isolation vaJ,-e
13 Watertlowswi.tch("·hen used)
14 Supply water temperarure control (when used)
IS low wa.ter cutoff (when used) (place above primary header)
16 Cold water 6U tine- see Figure IS,
page
14 for typical
components
18 System suppty
19 System return
20 (Not shown) Boiler relief valve and discharge piping. installed
per
GV90+
Boi~ Manual
30
Long end
of manifold
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-=
----------------~------------------------~
Pan-number
sso..-•14:2:-783/ lOll
25