Weil-McLain CGA 2 Series Installation And Maintenance Manual page 64

COa Series 2 Gas-Fired Water Boiler - Boiler Manual
13a
Dimensions
Figure 36 Dimensional drawing - ALL DIMENSIONS IN INCHES
®
Supply piping (note
7)
f
®
Return p iping (note 1)
6
L _
@
Relief valve,%" NPT
--+
@
Yz" NPT to expansion tank/air vent
®
Vent con nection to vent damper
®
Draft hood
®
Gas supply piping
®
Drain valve
@
Gas supply ent rance (rig ht or left side)
@
Pressure/temperatu re gauge
ALL DIIIENSIONS IN INCHES
NOTEZ
28%
l't·
j
LEFT SIDE
Boiler Supply Return Gas connection
model tapping tapping & manifold size
numbe r (inches NPD
(inches NPT)
Note 3
(inches NPT)
CGa-25 1'.4 1'.4 Yz
CGa-3
1'.4 1'.4
Yz
CGa-4 1'.4 1'.4
Yz
CGa-5
1'.4 1'.4
Yz
CGa-6 1'.4 1'.4
Yz
CGa-7
1'.4 1'.4
%
CGa-8 1'.4 1'.4
%
!-A
FRONT
"A"
Vent
location
(inches)
5
5
6-Yz
8
9-Yz
11
12-Yz
'' i •tt@i;l
Do not cut o r alter draft hood in any way,
Boil er combustion will be affected, causing
severe personal injury, death or substantial
property damage.
Hotel: Boiler supply and retum tappings are both 1 'A' NPT.
NDio2:
See
Tobie 3, page 16
for recommended system sup-
ply and retum piplr>g sizes.
Boiler cirtulator is shipped loose. C irtulator may be
moonted on
e~her
boiler supply or return piping.
C irtUiator dange provided witll boiler is same size as
recommended
pipe
size
in
Tobie 3, page 16.
01 ®
'.
l].f'
~·
'.
'.
~
'.
' .
' .
' .
- ~~:
-~~
"
"
~}
H
" D "
Vent
diameter
(inches)
4
4
5
6
6
7
7
•
RIGHT SIDE
"W"
" H "
.Jacket Damper
width height
(inches) (inches)
10 45-318
10
52-318
13
54-318
16 57·7/8
19 60-7/8
22 62-1/8
25 64-7/8
Note 3: Gas piping from meter to boiler to be sized per local utility requirements.
64
Part
Number
550·142· 779/0712