ffiJSi-
W!Q
.j
DOE
*·
5)
H
Ratings
I
DOE
Net
I=B=R
Boiler
Heating
Water
DOE
Seasonal
Vent
Wa
t
er
Input
Capacity
Ratings
Efficiency
Diamete
r Content
Model
MBH
MB
H(1)
MBH
(2)
AFUE
%
Inche
s
(3
)
Gal.
GV90+3
70
65
56
91.9
I 3 I 3.8
GV90
+4 1
05
97
84
91.2
3
4.7
GV90+5
140 130
113
91.4
3 6.0
GV90
+6 175
161
140
91.0
3
6.9
llotes:
(1)
Baseo
on
stanoa«J
test
proceuures
pres.:Nbed
by
llle
Unfied
States
Oepanml!llt
of
Energy
.
(2)
Neti•B•R
ra
tin
gs
are
based
on
net
insta
ll
ed
radiation
of
sufficient
quantity
for
the
requirements
oftile
bunding
and
nothing
needs
to
be
added
for
normal
piping
and
pick
·
up
.
Ratings
are
based
on
a
piping
and
pld<-
up
allowance
of
US.
An
additional
al!owance
should
be
made
for
llnusual
piping
and
pick-up
loads.
(3)
GY90+
bo
i
lers
must
be
vented
directly
to
!be
outside
.
Dimens
i
ons
Mode
l
GV90+3
GV90
+4
GV90
+5
GV90
+6
Le
n
gth
Inches
L
303/4
303/4
373/4
373/4
j~r-
~
-iT
I_
··
_
-
2
·
.
~4
5!!!!1/S••o-
.J
I
Supply
I
Return
I
Tap
pi
ng
Tapping
ln. ln.
1 1
1
n~
177/8
P4
3
/
4
26
1
/2
g
7/8
_u_
..
..
I : •
~
Gas
Mi
nimum
Approx
.
Connection
Reco
m
mended
Shipp
i
ng
Si
ze
Inches
Pip
e
Si
ze
ln
.
Weight
(
Lbs
)
1/2 1
313
1/2 1
353
1/2 11/4
423
1
/2
11/4
464
Installati
on
Fl
ex
ib
ili
ty
wHh
Mu
lti
ple Venting
Op
ti
on
s
Sidewa
ll DirectVent
Weii·McLain
VenVair
Cap
Sidewall
Direct Exhaust Through-the-roof
DirectVent
Separate Pipes
Through-the-roof Through-the-roofSidewall
Di
rect
Ve
nt
Concentric Direct
Vent
Concentric Direct Exhaust
Standard
Equipment
Standard
Equipment:
Factory
Tested
Insulated
Exte
n
ded
Steel
Jac
k
et
Cast
Iro
n
Sectio
ns
with
Built-inAir
Separato
r
Sta
i
nless
Steel
Secondary
Heat
Exchanger
w
/Al
r
Separato
r
Steel
B
ase
Co
n
trol
M
od
u
le
with
Indicator
Li
gh
ts
Blowe
r
Assemb
ly
with
Observatio
n
Port
Gas/
Air
Manifo
ld
Assemb
ly
Gas/A
ir
Orifice
Plate
for
Natural
Gas
(separate
pla
te
furnished
for
con
v
ersio
n
to
p
rop
ane
)
Sta
i
nless
Steel
Burner
C
one
and
Ri
ngA
ss
e
mb
ly
Negative
Re
gu
l
atio
n
Gas
Valve
Hot
Su
rface
Ignit
i
on
System
AJr
Press
u
re
Switch
System
Ci
rculator•
B
uilt
-
in
-B
ypass
Circu
l
ator
System
wi
th
S
en
sor
fo
rTe
mperature
Control*
Co
n
densate
Drain
T
rap
Sidewall
Vent
Te
rmi
nat
i
on
Kit
..
40VA
Transformer
Electrical
Junction
Box
30
PS
I
ASME
Re
li
efV
al
ve
(
bo
il
er
secti
on
s&
secondary
he
at
exchanger
tested
for
50
P
SI
YtOr
kin
g
pressure)
wat
er
Tempe
rature
Ll
mit
Swit
ch
Sect
i
on
Bl
ock
Temperature
Limit
Sw
i
tc
h
Co
m
bination
Pressure-Temperatu
re
Gauge
Dra
in
Valve
Flue
T
hermal
Fu
se
wat
er
Tre
atment
-
Inhibitor
&
Te
st
Kit
Additional
Equipment
:
Concen
tr
ic
Vent
Kit
Condensate
Neutralizer
Kit
Expansion
Tank
Package
.
#109-sizes
3
thru
5;
11110
-
slze
6.
Ship
pe
d
in
se
parat
ec
arton.
High
Altitude
Kit
W-
M5&10
Year
Homeowner
Pr
otect
i
on
Pla
n
W·M
Indirect-fired
Water
Heaters
W·M
Pool
Heate
rs
W-M
Baseboa
rd
Units
*
Circu
l
ators
supp
li
ed
wi
th
boiler
cannot
be
remove
d
and
cannot
be
used
as
az
one
ci
rculator
in
multip
le
zone
sys
t
ems
.
*
*Includes
inside
and
outside
plates,
vent
cap
and
hardware
.
500
Blaine
Street. Michigan
City
,
IN
46360 1 www.weil-mclain.com
c-
11
51
108
121
