Install Instructions
CG i
GAS-FIRED
wATER
eotLER-
sERIEs
3-
Boiler
Manual
1 b
Prepare
boiler
location
-
clearances
Recommend
ed SERVICE
cl
e
arances
(Fig. 1a)
I. Provide clearances
fo
r cleaning
and
servicing
the
boiler
and
for
access to controls
and
co
mp
onents. See Figure Ia for recommen-
dations.
2.
Provide
at
least screwdriver clearance tO jacket front panel screws
for removal of front panel
fo
r inspection and mi
nor
service. If
unable to provide
at
least screwdriver clearance, install
uni
ons
and
shutoff valves in system
so
boiler can be moved
fo
r servicing.
Figure
1a
Recommended
SERVICE
cleruances
,
~,·
·
J
(see
WARNING
below)
I&
WARN
I
NG
I
....
If
any clearance Is
less
than
In
Figure
1a,
pro-
vide openings for combustion
and
ventilation
air
located
on
the wall
or
door
opposite the
boiler
FRONT (see Figure 1b).
These openings must be located as shown in
Fi
gure
Ib
to provide
proper air
fl
ow
arOtmd the boiler.
Th
e free area
of
each opening
(after
ded
ucting for louvers)
mu
st
be
at
least one
square
Inch
per
1,000 Btuh
of
boiler inpuL If
the
buil
ding
is
of
unusually tight
con
st
ructi
on
(see page
II
for definition), the air openings must
connect directly to outside or
the
building
mu
st
have air
open
ings
to
th
e outside
as
specified
on
page I
I.
If
clearances are equal to
or
greater than Figure
Ia,
see pages
10
and
II
fo
r location
and
si
zi
ng
of
combustion air openings.
Failure to comply can result in
severe personal inj
ur
y,
death
or
substanti
al
property damage
and
reduce(!
bo
iler life.
Re
qui
re
d
MINIMUM
cl
e
aranc
es
(F
ig
.1
b)
I&
WA
RN
IN
GI
Never Install
the
boiler In a
space
with clear-
ances
less
than
the
minimum
clearances
shown
In Figure 1b. Failure to comply can result
in
severe
personal injury, death or substantial property
dam-
age
and
reduced
bo
il
er
li
fe.
I. Hot
water
pipes:
at
least
'h
Inch from combustible material.
2.
Single-wall vent pipe:
at
least
61nches
fro
m combustible mate-
rial.
3.
Type B double-wall metal
vent
pipe: refer to vent manufacturer's
recommendati
on
fo
r clea
ran
ces to combustible material.
Part
Nu
m
ber
550-142-780/071 2
Flgure 1b Required
MIN
I
MUM
cl
earances
Flooring
The CGi boiler is approved for installation on co
mbu
stible
fl
oor
ing,
but
mttst never be installed on carpeting.
I&
WARN
I
NG!
Do
not install boiler on carpeting even
if foundation is used.
Fi
re
can
result,
causing severe personal injury, death
or
substantial property damage.
Foundat
i
on
l.
Pr
ovide a solid brick or minimum 2-inch thick concrete
foundation pad
if
any
of
the
following is true:
fl
oor
can become
fl
ooded
the boil
er
motmting area is n
ot
leve
l.
2. Minimum dimensions are 251nch
length
by:
Minimum
foundation width:
CGI-2513
1
2"
CGI~
21
"
CG~4
1
5"
CGI-7
24
"
CG~S
1
8'
CGHI
2
7"
Residential
garag
e
installations
Ta
ke
the following special precautions when installing the
boiler in a res
id
ential garage. If the boiler is located
in
a
residential garage, per
ANSI Z22
3.
1:
Mo
unt
th
e boil
er
a mini
nuun
of
181nches
above
the
floor
of
the
ga
rage to assure the
bumer
and i
gn
ition
devices w
ill
be no less than 18
in
ches ab
ove
th
e
fl
oor.
Locate
or
protect
the
boiler
so
it cann
ot
be damaged
by a moving vehicle.
7