Weil-McLain GV90+ Installation And Start-Up Manual page 55

GV90+ Series 2
OAS•FIRED WATER BOILER-
Boiler Manual
Gas piping
(continued)
N•tur• l G•s
I.
Rtft r to Figurt 6S for
pipe length and diameter. Size
gas
supply plp[ru( for total flow to all connected appUances. For
each GV90+ D<>iler, provide for the fo llowing gas flow (dh
=
cubic
ftel
per h our):
Boner modll
CFH n.tu,.l
gu
Gl/9043
GV90+4
GV9G+S
GV9G+6
2. Inlet prtssurt required at gas valve in let:
maximum 14" w.c.
minimum 3.5" w.c.
70
140
106
175
IA WARNINGI
lnslllll
I 00%
lockup gas
pressure r<gulacor in sup-
ply
li ne
if
inlet
prt$SUrt
exceeds 14'' water column.
Adj\J.S.t
for 1 4~~' w.c. maximum.
~ne Gas
I.
Conti«
gos
supplitt
to
siu pipet, lllnb
and
I ~
lodup
p
prt::S&urt regulatOt:.
2. Adjw<
propan~
supply regulator provided
by gos suppli<r
f<lr
14
w.c.
maximum pressuu.
3. Inlet pttssurt required at gas valve in let:
maxjmum
14"
w.c.
minimum
3.5"
w.c.
Figure
66 Pipo capacity for 0.60 •poclllc gravity natural gas
C.pteity In cubic
twt
of • •
.,.,-how-
....... , ea•
on~r.
wlttl
•f*Ciftc
grwity ol 0.60
O..plpo
e...d on ,......,..-.
*op
of 0.3'"
w.e.
.........
I'"' I
Goo---
w·
14"
•••
114" IW
10 132
m
""'
,
...
1000
..
02 100
350 730
1100
..
73 1 ..
-
...
800
..
83
...
2<1
500 7'80
..
...
115
.,,
-
170
,.
...
..
171
300
54$
...
..
,.
180
300
' " " ...
3 1
.,.
120
...
310
For tdditionaJ gas
JPi~
si:zing infomudon,
rt(cr
to ANSI Z223.1 (or
8 149.1
or
8149.2
for Canadian
insrallaltonf) •
..... .........
550- 1 ~ 2 -783/101 2
Wiring
WARtetQ For your safety, rum off electrical powt:r supply at
~ice
entrance panel bcfort: making any electrical
cot,nections to avoid pos.s:ihle electric shock ha1.ard.
Failurt to do so
Clln
cause severe personal injury or
<Ieath.
lnatalletion must comply w~h :
N>t»nal El«tricaa
Code and any
othtr
national,..,.tt, provincial
0<
Jooo)
cod<s
or ngulations. In Canada, CSA
02.1
Canadian
El«tria l
Code
Part
I, and any Joool
co<lcs. Boil« must b<
dtt-
tri<ally groun<l<d
a<
.-.quired by National Electri<al
Code ANSI/
NFPA 70 · lalle$1 edition.
NOTICE] Wiring must b< N.E.C. Clnss I. Boikrmustb<elec-
trically grounded as requirtd
by
National Electrical
Code ANSI/NFPA 70 • latest edition.
To rt'plaet wiring, order compk-tt harness assem-
blies from WeiJ-Mcl.ain. If any
origia\al
wiring as
s upplied
with
boiler mull b< rq>laced, and a har-
:MU
is not
immt."diardy availablt,
UJt"
only
type
IOS"C
wi~ or~uivalcnt.
Use this wiring only as a
tmrporary
repair. Obuin a compkt<
ham ...
from
Weii-Md.ain.
Wi ri ng connect ions
Power wiring
Connect 120VACpowerwiringassflown in Figurt66. The june-
don
box is Joc.attd on the i11.$ide leA jacket
pantl.
IIOTICE
Watch the
polarity
of the
circuit when conn«<-
ing
the 120 VAC
pt>Wff
wirina- If
the polarity is
.<Witched,
th<
in «grated boiler control willlod:out.
Th< IBC wiD llasb
the
POWER Ugbt to lndi<ate
this problm1.
$toe
the troub'tShooting
information
beginning on
pag~
76.
Additional limit controls
Wire
additior•allimit
contrOls
(if
uStd.) as shown in Figurt 67 .
T tt.rmoablt(a)
lnstaU tbermostats oo insklt walk, away
from
lnflutoces of
dtafts.
hot or cold water pipes. Ugbtlng
fixtutes,
television, sun
rays. or fireplaces.
Follow
instr uctions
with thermostat. If it has a heat anticipator •
Jet heat anticipator in thermostat to mntch power rtquimntnts
or equipment conntcted to
it
(ignition control g.nd gas vaJvt.zont
valve
co nt~cts,
ttc.). Wiring diagram on boiler gives setting for
standard
tquipmt:nt
(ignition
control and gas
vtllvt).
55