Weil-McLain GV90+ Installation And Start-Up Manual page 28

GV90+ Series 2
OAS>f'IAED WATER BOtLER -
Boiler ManuaJ
Multiple boiler water piping
(contlnuedJ
Figure 36 Piping layOUI - typical for multiple GV90+ boil8fS, using isolaliQn excl1anger
Uttlaolation
~t
excm.nver tor.
28
~ Boiler-side
circuit ,..
Heating system circuit
l
- - '
""=·'
~ !)
·-
...
. .
... .. .m
@ "'. . : . _
~~·~ II
t
u
.
-
· ~
f.
l ·
I. l argt-voluiUL'
.sy'Atm.t
wltb bigb
m.lnutl tootuat
ill
w~r.
1. Syitem.s a-posed ta umuattd
quantities ol maknlp
watt:r~
J. Old -systtrns s:tn•n lr oontamt-
llllled with ale and rust buildup
imidt piping and
htat
disrrilo-.
tion oniu.
...
rro~apptications.
5.
Commucial strvia
W3ltr
a~
plhtit~OS.
6.
Kl_gbwar.erp~USUrtaJ191.ications 1
"'qulr-ing prtssure rdief setting
ill
b~Ji.ng
sym.m
~
tba.n 50
PSIG (!aU hWldUlg!.).
&.
ooltS
bclow .
Legend - Figur& 36
Flow/che&vaM ( eaCh boOtt}
l WlbJfua
\•aJvet
(wh,en
w~)
j
C.p
<
E•lf·Fil• Manifold (supplf) -
byoul and
il,U
fM:r
pagt-l.t
.3
F.ls:y~ Rt- M:antfol~
llmiru)-lat·
ow ana ~7..!
l:!ft''Pap!-1.4
6a Headn:g
~
dn:uJator
(t'ldbt• g~
tf'
tu~liidt)
lib Htat tKbanseuhen
4
_.1&-
clrculunr
1
~""""
ranb (ili>phl'Ogm rypt)
A
S)'"lltetn.alr dimlnuor
9 SfSttfW 1 h HOrn:l tf.: air ftiU
I ~
Cold
wa.te:r
~ppfy catlnt~.."'ltol\1
I(; Cold
W3.t.E'r
6Ji
line- see Fttt'
woe
32,
p.-
25 (or
rypi~l cumpo-
""""
13 f(brlnj')'"""'"PPir
19
HearinJ'ys.ltm
rerum
20 f5oik:r' rdief Y'lllve ;md
tllsdtiu¥t
l~lplng,
fnallllltd ptt
G¥901 Bofler
"""""'
~
$ensor for
BCP
{OOl~tt
conuol
paad ),
when
U IC!d
NO~
I. Coftll tr htt1 ttcllangu
fllll.nufatutrer
fot hat
f'X·
~-.<ideao.Snol><, sid< ari~"6
and <i<iDIIIIII'
nqu.i.mnents ~ Thb~Udt
flow
and tempuatll!'W must
ft'Wf
ht:ttfng ~~n ttqtilmnenu..
2. Can.r.ac1 ht:a1excban!Jff manl1f t~cwm ror ild113 heat
e:uhwga.
3. Kn.a ex.:hangH>
-shell~$ide.
circuit
~ulm
lu: own
dp.aruion
ttn~
liS
UIOW!' I .
4. liealirlS'f'tan diodu'eqllin!tl
illi
own
~panlli(ln
tmt.
a\~n.
plus
ii's
a-wn relief vaM
ATCt
co
111\ll~ J~eatins
•15tem
and
beat cscb:ang« r!ipingand comi'Oft¢nll..
5.,
~
iudh'\dll21 il00itla11 'illl\'e\
A(' I!
mt!tl,
indiv:fduitl
boiler and J,eyd connok may: M rtquJr«l
P.art nuulb«- 55().. t
~2-7it.ll
10 1!