Weil-McLain GV90+ Installation And Start-Up Manual page 17

GV90+ Series 2
o.Ali-FIIIW WATia IIOILER -
Boiler Manual
Install water piping
(contrnued)
Figure
18
Zqn~
vallle zoning - GV90+3, GV90+4 or
GV90+5
(DO NOT apply to GV90+6)
, ··- ·· - -- ··-
I
1
r---~---·
\ ... 1-, -"-- -
'
I
L
(ZiY1 0 3 U• t•uli
~ .liVIhl
- - " - •· - ·• - •·
'
I
~ ~
Zone 3
----~----
I
L
lZCfle 2 Clrctl!l P-!Vlfll - .. -
'"l - ... - • •
I ..
i
Zone 2
1
L
~Zona1o-rWfl~&ml
_ .. - .. - .. - ·· ._,
Zone 1
I
I
®~~-------------4
'
I
I
•
I •.:fl
: :!_
F
'~- - - - - - -~~1
- - --
f
ff_t '
. . . . ..
_ , -
·-
Legend
I Isolation 'ildvet
•
Zonewlft
2 Aolomalk air
'lftlt
(with
7
Hose bibb
pu.rse
valw
diaphr~m-typt ~n -
8
Boiler
prtsswt/~tmptn.·
lion u ). or conn«:t
10
ta.nk
6tuog (doted-rype
"""8'"8'
ex;pantion tank).
10
Difft:rential
pttsswt
br·
' DUpbra&m· or bbddtr-
putvalw
ty~
af:nsion tllnk,
if
16
Cold
watet
fi.D line-
8t'lt'!
uud. ( r dosed·typt
Fisure IS, page U for
~ion
tl.nk.pipefrom
typicd componentt
to~p of a.tr upuator to
u:nk fiu.ins u i n Fis·
UJ'It
15, f!t8t 14.)
Pipe sizes (NPT), minimum
Boll or model
Mains
Circuits
GV90+3
1' 14'
GV90+4
GV90+5 1l4'
14'
NOTICE
Circuit requirements
See Flgure19
One-plpo <1- - systoms - The
ap-
plication information on this page is based
on two-pipe baseboard systems. To check
\vhethe:r the internal circuJaro r can provide
suff'icient flow to a one- pipe d iv erter tee
sysrem> use the a\'llilable head value given in
Figure 19, page 17.
Figure 19
1hesyslam
m~
meet lhe tollowing requi rem6f"lts when
applyin~;~
Figure 18
Bo<ief
Qlrculalor HEAD
Maldmum 'M1nlmum
load Max f&el baseboard
Summary
model avallabls 10 the
clrcutt
number o f
any
of any circuit
S\'SlO<Il
longll\
otolrcults circuit (0 600 BWMoot)
L
e,.o ~eot
"""'
6.5 GPM
10181
t3V90+3
0 6.SGPM
103 lt!el 40MBH 67 feel (max 4 GPM any circuli)
20'F
4-.1
feet
w.c.
9. 7 GPM 10181
GV90+4
Ill 9.7GPM
92feol 3 33MBH 55 feel (max 3.3 GPM any clrcuh)
5.5 loti! "' " "
6.7GPM
,QV9(H.S•
08.7GPM
f1~lilat
3
53 MBH
eo
feel (max 3.5 GPM
any circuit)
30'F
drop
f,ln
number S50-l 4:l-783/ l 011
17